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3 values
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stringlengths
19
243k
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stringlengths
19
243k
change
stringclasses
3 values
i1
int64
0
8.44k
i2
int64
0
8.44k
j1
int64
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8.44k
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int64
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8.44k
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226k
p02598
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<bool> vb; typedef vector<vl> vvl; typedef vector<vi> vvi; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<pll> vpll; typedef vector<pii> vpii; typedef vector<vpll> vvpll; typedef vector<vpii> vvpii; #define pb push_back #define eb emplace_back #define pf push_front #define all(c) (c).begin(), (c).end() #define ff first #define ss second #define mp(x, y) make_pair((x), (y)) #define boost \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) int f(int len, int goal) { return len / goal - (len % goal == 0); } void solve() { int n, k; cin >> n >> k; int a[n]; for (int &u : a) { cin >> u; } int lo = 0, hi = 1e9; int ans; while (lo <= hi) { int mid = (lo + hi) / 2; int cnt = 0; for (int u : a) { cnt += f(u, mid); } if (cnt <= k) { ans = mid; hi = mid - 1; } else { lo = mid + 1; } } cout << ans << '\n'; } int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif boost; int t = 1; // cin >> t; for (int i = 1; i <= t; i++) { // cout << "Case #" << i << ": "; solve(); } return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<bool> vb; typedef vector<vl> vvl; typedef vector<vi> vvi; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<pll> vpll; typedef vector<pii> vpii; typedef vector<vpll> vvpll; typedef vector<vpii> vvpii; #define pb push_back #define eb emplace_back #define pf push_front #define all(c) (c).begin(), (c).end() #define ff first #define ss second #define mp(x, y) make_pair((x), (y)) #define boost \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) int f(int len, int goal) { return len / goal - (len % goal == 0); } void solve() { int n, k; cin >> n >> k; int a[n]; for (int &u : a) { cin >> u; } int lo = 1, hi = 1e9; int ans; while (lo <= hi) { int mid = (lo + hi) / 2; int cnt = 0; for (int u : a) { cnt += f(u, mid); } if (cnt <= k) { ans = mid; hi = mid - 1; } else { lo = mid + 1; } } cout << ans << '\n'; } int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif boost; int t = 1; // cin >> t; for (int i = 1; i <= t; i++) { // cout << "Case #" << i << ": "; solve(); } return 0; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; void solve() { int n; ll k; cin >> n >> k; vector<ll> a(n); ll ma = 0; for (int i = 0; i < n; i++) { cin >> a[i]; ma = max(ma, a[i]); } ll left = -1; ll right = ma + 1; while (right - left > 1) { const ll mid = (left + right) / 2; ll sum = 0; for (int i = 0; i < n; i++) { sum += (a[i] + mid - 1) / mid - 1; } if (sum <= k) right = mid; else left = mid; } cout << right << endl; } int main() { cin.tie(nullptr); ios::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(15); solve(); return 0; }
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; void solve() { int n; ll k; cin >> n >> k; vector<ll> a(n); ll ma = 0; for (int i = 0; i < n; i++) { cin >> a[i]; ma = max(ma, a[i]); } ll left = 0; ll right = ma + 1; while (right - left > 1) { const ll mid = (left + right) / 2; ll sum = 0; for (int i = 0; i < n; i++) { sum += (a[i] + mid - 1) / mid - 1; } if (sum <= k) right = mid; else left = mid; } cout << right << endl; } int main() { cin.tie(nullptr); ios::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(15); solve(); return 0; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> a(n); for (int &x : a) { cin >> x; } int l = 0, r = *max_element(a.begin(), a.end()); while (l < r) { int64_t m = (l + r) >> 1; int64_t tmp = 0; for (int x : a) { tmp += (x + m - 1) / m - 1; } if (tmp > k) { l = m + 1; } else { r = m; } } cout << r << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> a(n); for (int &x : a) { cin >> x; } int l = 1, r = *max_element(a.begin(), a.end()); while (l < r) { int64_t m = (l + r) >> 1; int64_t tmp = 0; for (int x : a) { tmp += (x + m - 1) / m - 1; } if (tmp > k) { l = m + 1; } else { r = m; } } cout << r << endl; return 0; }
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0
p02598
C++
Time Limit Exceeded
#include <algorithm> #include <iostream> #include <map> #include <math.h> #include <queue> #include <stack> #include <stdio.h> #include <string.h> typedef long long int ll; using namespace std; #define maxn 0x3f3f3f3f #define INF 0x3f3f3f3f3f3f3f3f const int mm = 2e5 + 100; ll d[mm]; ll n, m; ll check(double u) { int i; ll s = 0; double a; for (i = 0; i < n; i++) { a = d[i] / u; s += ceil(a) - 1; } if (s <= m) return 1; else return 0; } int main() { ll i, j, t, a, b, c, p, k, kk; cin >> n >> m; double l, r, mid; for (i = 0; i < n; i++) { scanf("%lld", &d[i]); } l = 0; r = 1000000000 + 5.0; while (l + 1e-7 <= r) { mid = (l + r) / 2; if (check(mid)) r = mid; else l = mid; } cout << (ll)ceil(l) << endl; }
#include <algorithm> #include <iostream> #include <map> #include <math.h> #include <queue> #include <stack> #include <stdio.h> #include <string.h> typedef long long int ll; using namespace std; #define maxn 0x3f3f3f3f #define INF 0x3f3f3f3f3f3f3f3f const int mm = 2e5 + 100; ll d[mm]; ll n, m; ll check(double u) { int i; ll s = 0; double a; for (i = 0; i < n; i++) { a = d[i] / u; s += ceil(a) - 1; } if (s <= m) return 1; else return 0; } int main() { ll i, j, t, a, b, c, p, k, kk; cin >> n >> m; double l, r, mid; for (i = 0; i < n; i++) { scanf("%lld", &d[i]); } l = 0; r = 1000000000 + 5.0; while (l + 1e-6 <= r) { mid = (l + r) / 2; if (check(mid)) r = mid; else l = mid; } cout << (ll)ceil(l) << endl; }
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TLE
p02598
C++
Runtime Error
/* * Created By: 'Present_Sir' * Created On: Monday 03 August 2020 08:11:06 PM IST */ #include <bits/stdc++.h> #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define int long long using namespace std; const int N = 2e5 + 10; int n, k; vector<int> v(N); bool valid(int mid) { int kc = k; for (int i = 0; i < n; i++) { if (v[i] <= mid) { continue; } int t = v[i] / mid; kc -= (t); } return kc >= 0; } void solve() { cin >> n >> k; for (int i = 0; i < n; i++) { cin >> v[i]; } int i = 0, j = LLONG_MAX; int ans = 0; while (i <= j) { int mid = (i + j) / 2; if (valid(mid)) { j = mid - 1; ans = mid; } else { i = mid + 1; } } cout << ans << endl; } int32_t main() { IOS; // int t; cin>>t; while(t--) { solve(); } return 0; }
/* * Created By: 'Present_Sir' * Created On: Monday 03 August 2020 08:11:06 PM IST */ #include <bits/stdc++.h> #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define int long long using namespace std; const int N = 2e5 + 10; int n, k; vector<int> v(N); bool valid(int mid) { int kc = k; if (mid == 0) { return false; } for (int i = 0; i < n; i++) { if (v[i] <= mid) { continue; } int t = v[i] / mid; kc -= (t); } return kc >= 0; } void solve() { cin >> n >> k; for (int i = 0; i < n; i++) { cin >> v[i]; } int i = 0, j = LLONG_MAX; int ans = 0; while (i <= j) { int mid = (i + j) / 2; if (valid(mid)) { j = mid - 1; ans = mid; } else { i = mid + 1; } } cout << ans << endl; } int32_t main() { IOS; // int t; cin>>t; while(t--) { solve(); } return 0; }
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0
p02598
C++
Runtime Error
#include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define Maxn 200010 #define LL long long using namespace std; const double eps = 0.00001; inline LL read() { LL x = 0, f = 1; char c = getchar(); while (c < '0' || c > '9') { if (c == '-') f = -1; c = getchar(); } while ('0' <= c && c <= '9') { x = x * 10 + c - '0'; c = getchar(); } return x * f; } LL n, k, a[Maxn], maxone; LL calc(int len) { LL tim = 0; for (int i = 1; i <= n; ++i) { tim += (a[i] - 1) / len; } return tim; } int main() { n = read(); k = read(); for (int i = 1; i <= n; ++i) a[i] = read(), maxone = max(maxone, a[i]); int l = 0, r = maxone; while (l < r) { int mid = (l + r) >> 1; if (calc(mid) > k) l = mid + 1; else r = mid; } cout << l << endl; return 0; }
#include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define Maxn 200010 #define LL long long using namespace std; const double eps = 0.00001; inline LL read() { LL x = 0, f = 1; char c = getchar(); while (c < '0' || c > '9') { if (c == '-') f = -1; c = getchar(); } while ('0' <= c && c <= '9') { x = x * 10 + c - '0'; c = getchar(); } return x * f; } LL n, k, a[Maxn], maxone; LL calc(int len) { if (!len) return 1e9 + 1; LL tim = 0; for (int i = 1; i <= n; ++i) { tim += (a[i] - 1) / len; } return tim; } int main() { n = read(); k = read(); for (int i = 1; i <= n; ++i) a[i] = read(), maxone = max(maxone, a[i]); int l = 0, r = maxone; while (l < r) { int mid = (l + r) >> 1; if (calc(mid) > k) l = mid + 1; else r = mid; } cout << l << endl; return 0; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> #define ss second #define ff first #define all(x) x.begin(), x.end() // #define DEBUG 100 using namespace std; using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const ll oo = 1e9 + 7; const ll mod = 1e9 + 7, maxn = 2e6 + 100, maxm = 1e3 + 100; const double PI = acos(-1); ll solve(vector<ll> &vs, int n, ll k) { ll a = 0, b = oo, best; while (a <= b) { ll mid = (a + b) / 2, cnt = 0; for (auto it : vs) { cnt += (it / mid - (it % mid == 0 ? 1 : 0)); } if (cnt > k) { a = mid + 1; } else { best = mid; b = mid - 1; } } return best; } int main() { ios_base::sync_with_stdio(false); ll n, k; cin >> n >> k; vector<ll> vs(n); for (int i = 0; i < n; i++) { cin >> vs[i]; } ll ans = solve(vs, n, k); cout << ans << endl; return 0; }
#include <bits/stdc++.h> #define ss second #define ff first #define all(x) x.begin(), x.end() // #define DEBUG 100 using namespace std; using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const ll oo = 1e9 + 7; const ll mod = 1e9 + 7, maxn = 2e6 + 100, maxm = 1e3 + 100; const double PI = acos(-1); ll solve(vector<ll> &vs, int n, ll k) { ll a = 1, b = oo, best; while (a <= b) { ll mid = (a + b) / 2, cnt = 0; for (auto it : vs) { cnt += (it / mid - (it % mid == 0 ? 1 : 0)); } if (cnt > k) { a = mid + 1; } else { best = mid; b = mid - 1; } } return best; } int main() { ios_base::sync_with_stdio(false); ll n, k; cin >> n >> k; vector<ll> vs(n); for (int i = 0; i < n; i++) { cin >> vs[i]; } ll ans = solve(vs, n, k); cout << ans << endl; return 0; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)n; ++i) #define rrep(i, n) for (int i = (int)n - 1; i >= 0; --i) using namespace std; using ll = long long; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <typename T, typename... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T, typename U, typename... V> typename enable_if<is_same<T, U>::value>::type fill_v(U &u, const V... v) { u = U(v...); } template <typename T, typename U, typename... V> typename enable_if<!is_same<T, U>::value>::type fill_v(U &u, const V... v) { for (auto &e : u) fill_v<T>(e, v...); } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, k; cin >> n >> k; vector<int> a(n); rep(i, n) cin >> a[i]; int ok = 1e9 + 5, ng = 0; auto check = [&](int x) { ll cnt = 0; rep(i, n) { int now = a[i] / x; if (a[i] % x == 0) now--; cnt += now; } return cnt <= k; }; rep(i, 100) { int mid = (ok + ng) >> 1; if (check(mid)) ok = mid; else ng = mid; } cout << ok << endl; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)n; ++i) #define rrep(i, n) for (int i = (int)n - 1; i >= 0; --i) using namespace std; using ll = long long; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <typename T, typename... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T, typename U, typename... V> typename enable_if<is_same<T, U>::value>::type fill_v(U &u, const V... v) { u = U(v...); } template <typename T, typename U, typename... V> typename enable_if<!is_same<T, U>::value>::type fill_v(U &u, const V... v) { for (auto &e : u) fill_v<T>(e, v...); } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, k; cin >> n >> k; vector<int> a(n); rep(i, n) cin >> a[i]; int ok = 1e9 + 5, ng = 0; auto check = [&](int x) { ll cnt = 0; rep(i, n) { int now = a[i] / x; if (a[i] % x == 0) now--; cnt += now; } return cnt <= k; }; while (ok - ng > 1) { int mid = (ok + ng) >> 1; if (check(mid)) ok = mid; else ng = mid; } cout << ok << endl; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef vector<int> VI; typedef vector<vector<int>> VVI; typedef vector<ll> VLL; typedef vector<vector<ll>> VVLL; typedef pair<ll, ll> Pair; template <class T> T input() { T t; cin >> t; return t; } #define FOR(i, a, b) for (ll i = a; i < b; i++) #define REP(i, b) FOR(i, 0, b) #define RFOR(i, a, b) for (ll i = a - 1; i >= b; i--) #define RREP(i, a) RFOR(i, a, 0) #define REPALL(i, x) for (ll i = 0; i < x.size(); i++) #define RREPALL(i, x) for (ll i = x.size() - 1; i >= 0; i--) #define REPITR(itr, x) for (auto itr = (x).begin(); itr != (x).end(); itr++) #define ALL(x) (x).begin(), (x).end() #define SORT(x) sort(ALL(x)) #define MIN_ELEMENT(x) min_element(ALL(x)) #define MAX_ELEMENT(x) max_element(ALL(x)) #define COUNT(x, num) count(ALL(x), num) #define MEMSET(x, val) memset(x, val, sizeof(x)) #define CHMAX(a, b) a = max(a, b) #define CHMIN(a, b) a = min(a, b) #define FIND(x, key) x.find(key) != x.end() #define IN_RANGE_V2(v, k, x, y) \ (0 <= x + dx[k] && x + dx[k] < v[y].size() && 0 <= y + dy[k] && \ y + dy[k] < v.size()) #define debug(x) cerr << __LINE__ << ": " << (#x) << " = " << (x) << endl; void YES(bool flag) { cout << (flag ? "YES" : "NO") << endl; } void Yes(bool flag) { cout << (flag ? "Yes" : "No") << endl; } void yes(bool flag) { cout << (flag ? "yes" : "no") << endl; } #define PRINT_ARRAY_H(a) \ REPALL(__i, a) { cout << a[__i] << (__i != a.size() - 1 ? " " : ""); } \ newline; #define PRINT_ARRAY_V(a) \ REPALL(__i, a) { cout << a[__i] << endl; } #define e1 first #define e2 second #define newline putchar('\n') #define cspace ' ' #define sspace " " const int INF = 1e7; const ll MOD = 1e9 + 7; const double pi = 3.141592653589793; const VI dx = {1, 0, -1, 0}; const VI dy = {0, 1, 0, -1}; // const VI dx = {1, 1, 0, -1, -1, -1, 0, 1}; // const VI dy = {0, 1, 1, 1, 0, -1, -1, -1}; void solve() { ll b, c, d, n, m, l, r, k, x, y, z, ans = 0ll; string s, t; cin >> n >> k; VLL a(n); REP(i, n) cin >> a[i]; l = 0, r = 1e10; ll mid; REP(i, 100) { ll cnt = 0; mid = (l + r) / 2; REP(j, n) { cnt += (a[j] + mid - 1) / mid - 1; } if (cnt <= k) { r = mid; } else { l = mid; } // cout<<r<<sspace<<cnt<<endl; } cout << r << endl; } int main() { cout << fixed << setprecision(20); int __t = 1; // cin>>__t; REP(i, __t) { solve(); } return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef vector<int> VI; typedef vector<vector<int>> VVI; typedef vector<ll> VLL; typedef vector<vector<ll>> VVLL; typedef pair<ll, ll> Pair; template <class T> T input() { T t; cin >> t; return t; } #define FOR(i, a, b) for (ll i = a; i < b; i++) #define REP(i, b) FOR(i, 0, b) #define RFOR(i, a, b) for (ll i = a - 1; i >= b; i--) #define RREP(i, a) RFOR(i, a, 0) #define REPALL(i, x) for (ll i = 0; i < x.size(); i++) #define RREPALL(i, x) for (ll i = x.size() - 1; i >= 0; i--) #define REPITR(itr, x) for (auto itr = (x).begin(); itr != (x).end(); itr++) #define ALL(x) (x).begin(), (x).end() #define SORT(x) sort(ALL(x)) #define MIN_ELEMENT(x) min_element(ALL(x)) #define MAX_ELEMENT(x) max_element(ALL(x)) #define COUNT(x, num) count(ALL(x), num) #define MEMSET(x, val) memset(x, val, sizeof(x)) #define CHMAX(a, b) a = max(a, b) #define CHMIN(a, b) a = min(a, b) #define FIND(x, key) x.find(key) != x.end() #define IN_RANGE_V2(v, k, x, y) \ (0 <= x + dx[k] && x + dx[k] < v[y].size() && 0 <= y + dy[k] && \ y + dy[k] < v.size()) #define debug(x) cerr << __LINE__ << ": " << (#x) << " = " << (x) << endl; void YES(bool flag) { cout << (flag ? "YES" : "NO") << endl; } void Yes(bool flag) { cout << (flag ? "Yes" : "No") << endl; } void yes(bool flag) { cout << (flag ? "yes" : "no") << endl; } #define PRINT_ARRAY_H(a) \ REPALL(__i, a) { cout << a[__i] << (__i != a.size() - 1 ? " " : ""); } \ newline; #define PRINT_ARRAY_V(a) \ REPALL(__i, a) { cout << a[__i] << endl; } #define e1 first #define e2 second #define newline putchar('\n') #define cspace ' ' #define sspace " " const int INF = 1e7; const ll MOD = 1e9 + 7; const double pi = 3.141592653589793; const VI dx = {1, 0, -1, 0}; const VI dy = {0, 1, 0, -1}; // const VI dx = {1, 1, 0, -1, -1, -1, 0, 1}; // const VI dy = {0, 1, 1, 1, 0, -1, -1, -1}; void solve() { ll b, c, d, n, m, l, r, k, x, y, z, ans = 0ll; string s, t; cin >> n >> k; VLL a(n); REP(i, n) cin >> a[i]; l = 0, r = 1e10; ll mid; REP(i, 100) { ll cnt = 0; mid = (l + r) / 2; if (mid == 0) { r = 1; break; } REP(j, n) { cnt += (a[j] + mid - 1) / mid - 1; } if (cnt <= k) { r = mid; } else { l = mid; } // cout<<r<<sspace<<cnt<<endl; } cout << r << endl; } int main() { cout << fixed << setprecision(20); int __t = 1; // cin>>__t; REP(i, __t) { solve(); } return 0; }
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p02598
C++
Runtime Error
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define ll long long int #define REP(i, x, n) for (ll i = x; i < n; i++) #define SZ(v) (ll) v.size() #define endl "\n" #define ff first #define ss second #define PQ_MIN priority_queue<ll, vector<ll>, greater<ll>> #define PQ priority_queue<int> #define pbds \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define setbit(x) __builtin_popcount(x) #define prec(n) fixed << setprecision(n) #define pb(n) push_back(n) #define mp(a, b) make_pair(a, b) #define clr(n) memset(n, 0, sizeof(n)) #define reset(n) memset(n, -1, sizeof(n)) #define ii pair<ll, ll> #define vll vector<ll> using namespace std; using namespace __gnu_pbds; bool comp(pair<ll, ll> a, pair<ll, ll> b) {} const ll MOD = 1e9 + 7; void print(vector<vector<ll>> &v) { ll n = v.size(); ll m = v[0].size(); cout << "\n"; for (ll i = 0; i < n; i++) { for (ll j = 0; j < m; j++) cout << v[i][j] << " "; cout << "\n"; } } void print(vector<ll> &v) { ll n = v.size(); cout << "\n"; for (ll i = 0; i < n; i++) { cout << v[i] << " "; } cout << "\n"; } void print(set<ll> &s) { cout << endl; set<ll>::iterator it; for (it = s.begin(); it != s.end(); it++) cout << *it << " "; cout << endl; } ll __lcm(ll a, ll b) { return ((a * b) / __gcd(a, b)); } ll power(ll a, ll p) { ll res = 1; while (p > 0) { if (p & 1) { res = (res * a) % MOD; p--; } a = (a * a) % MOD; p /= 2; } return res % MOD; } const ll INF = 1e16; const ll nxm = 2e5 + 5; ll n, k; ll a[nxm]; bool can(ll hig, ll k) { REP(i, 0, n) { ll need = a[i] / hig; if (a[i] <= hig) need = 1; else { need = a[i] / hig; if (a[i] % hig) need++; } k -= (need - 1); if (k < 0) return false; } return true; } void solve() { cin >> n >> k; ll maxi = 0; REP(i, 0, n) cin >> a[i], maxi = max(maxi, a[i]); ll l = 0, r = maxi; while (l <= r) { ll mid = (l + r) / 2; if (can(mid, k)) { r = mid - 1; } else l = mid + 1; } cout << l << endl; } int main() { // freopen("timber_input", "r", stdin); // freopen("output.txt", "w", stdout); ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); ll t = 1; // cin>>t; REP(i, 1, t + 1) { // cout<<"Case #"<<i<<": "; solve(); } return 0; } // bitset<64>(x).to_ullong() // in my com _ulong() // cout<<bitset<64>(ans).to_string().substr(64-m)<<endl; /* char s[100]; fgets(s,100,stdin); stringstream stram(s); string abc; bool ok1=0,ok2=0; while(stram>>abc) */
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define ll long long int #define REP(i, x, n) for (ll i = x; i < n; i++) #define SZ(v) (ll) v.size() #define endl "\n" #define ff first #define ss second #define PQ_MIN priority_queue<ll, vector<ll>, greater<ll>> #define PQ priority_queue<int> #define pbds \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define setbit(x) __builtin_popcount(x) #define prec(n) fixed << setprecision(n) #define pb(n) push_back(n) #define mp(a, b) make_pair(a, b) #define clr(n) memset(n, 0, sizeof(n)) #define reset(n) memset(n, -1, sizeof(n)) #define ii pair<ll, ll> #define vll vector<ll> using namespace std; using namespace __gnu_pbds; bool comp(pair<ll, ll> a, pair<ll, ll> b) {} const ll MOD = 1e9 + 7; void print(vector<vector<ll>> &v) { ll n = v.size(); ll m = v[0].size(); cout << "\n"; for (ll i = 0; i < n; i++) { for (ll j = 0; j < m; j++) cout << v[i][j] << " "; cout << "\n"; } } void print(vector<ll> &v) { ll n = v.size(); cout << "\n"; for (ll i = 0; i < n; i++) { cout << v[i] << " "; } cout << "\n"; } void print(set<ll> &s) { cout << endl; set<ll>::iterator it; for (it = s.begin(); it != s.end(); it++) cout << *it << " "; cout << endl; } ll __lcm(ll a, ll b) { return ((a * b) / __gcd(a, b)); } ll power(ll a, ll p) { ll res = 1; while (p > 0) { if (p & 1) { res = (res * a) % MOD; p--; } a = (a * a) % MOD; p /= 2; } return res % MOD; } const ll INF = 1e16; const ll nxm = 2e5 + 5; ll n, k; ll a[nxm]; bool can(ll hig, ll k) { REP(i, 0, n) { ll need = a[i] / hig; if (a[i] <= hig) need = 1; else { need = a[i] / hig; if (a[i] % hig) need++; } k -= (need - 1); if (k < 0) return false; } return true; } void solve() { cin >> n >> k; ll maxi = 0; REP(i, 0, n) cin >> a[i], maxi = max(maxi, a[i]); ll l = 1, r = maxi; while (l <= r) { ll mid = (l + r) / 2; if (can(mid, k)) { r = mid - 1; } else l = mid + 1; } cout << l << endl; } int main() { // freopen("timber_input", "r", stdin); // freopen("output.txt", "w", stdout); ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); ll t = 1; // cin>>t; REP(i, 1, t + 1) { // cout<<"Case #"<<i<<": "; solve(); } return 0; } // bitset<64>(x).to_ullong() // in my com _ulong() // cout<<bitset<64>(ans).to_string().substr(64-m)<<endl; /* char s[100]; fgets(s,100,stdin); stringstream stram(s); string abc; bool ok1=0,ok2=0; while(stram>>abc) */
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0
p02598
C++
Runtime Error
// #pragma GCC optimize(2) // #pragma G++ optimize(2) // #pragma comment(linker,"/STACK:102400000,102400000") #include <bits/stdc++.h> using namespace std; typedef long long LL; typedef unsigned int ui; typedef unsigned long long ull; typedef float fl; typedef long double ld; typedef pair<int, int> pii; #if (WIN32) || (WIN64) || (__WIN32) || (__WIN64) || (_WIN32) || (_WIN64) || \ (WINDOWS) #define lld "%I64d" #define llu "%I64u" #else #define lld "%lld" #define llu "%llu" #endif #define ui(n) ((unsigned int)(n)) #define LL(n) ((long long)(n)) #define ull(n) ((unsigned long long)(n)) #define fl(n) ((float)(n)) #define ld(n) ((long double)(n)) #define char(n) ((char)(n)) #define Bool(n) ((bool)(n)) #define fixpoint(n) fixed << setprecision(n) const int INF = 1061109567; const int NINF = -1044266559; const LL LINF = 4557430888798830399; const ld eps = 1e-15; #define MOD (1000000007) #define PI (3.1415926535897932384626433832795028841971) #define MP make_pair #define MT make_tuple #define All(a) (a).begin(), (a).end() #define pall(a) (a).rbegin(), (a).rend() #define Log(x, y) log(x) / log(y) #define SZ(a) ((int)(a).size()) #define rep(i, n) for (int i = 0; i < ((int)(n)); i++) #define rep1(i, n) for (int i = 1; i <= ((int)(n)); i++) #define repd(i, n) for (int i = ((int)(n)) - 1; i >= 0; i--) #define repd1(i, n) for (int i = ((int)(n)); i >= 1; i--) #define repv(itr, v) \ for (__typeof((v).begin()) itr = (v).begin(); itr != (v).end(); itr++) #define repV(i, v) for (auto i : v) #define repE(i, v) for (auto &i : v) #define MS(x, y) memset(x, y, sizeof(x)) #define MC(x) MS(x, 0) #define MINF(x) MS(x, 63) #define MCP(x, y) memcpy(x, y, sizeof(y)) #define UN(v) sort(All(v)), v.erase(unique(All(v)), v.end()) #define filein(x) freopen(x, "r", stdin) #define fileout(x) freopen(x, "w", stdout) #define fileio(x) \ freopen(x ".in", "r", stdin); \ freopen(x ".out", "w", stdout) #define filein2(filename, name) ifstream name(filename, ios::in) #define fileout2(filename, name) ofstream name(filename, ios::out) #define fileio2(filename, name) fstream name(filename, ios::in | ios::out) #define sqr(x) ((x) * (x)) #define Pause system("pause") #define Cls system("cls") #define fs first #define sc second #define SF scanf #define PF printf const int maxn = 200010; int n, k, a[maxn]; inline bool check(int x) { int cnt = 0; for (int i = 1; i <= n; i++) cnt += a[i] / x + (bool)(a[i] % x) - 1; return cnt <= k; } int main() { SF("%d%d", &n, &k); for (int i = 1; i <= n; i++) SF("%d", &a[i]); int l = 0, r = 1e9 + 1; // [l,r) while (l < r) { int m = (l + r) / 2; if (check(m)) r = m; else l = m + 1; } PF("%d", r); return 0; }
// #pragma GCC optimize(2) // #pragma G++ optimize(2) // #pragma comment(linker,"/STACK:102400000,102400000") #include <bits/stdc++.h> using namespace std; typedef long long LL; typedef unsigned int ui; typedef unsigned long long ull; typedef float fl; typedef long double ld; typedef pair<int, int> pii; #if (WIN32) || (WIN64) || (__WIN32) || (__WIN64) || (_WIN32) || (_WIN64) || \ (WINDOWS) #define lld "%I64d" #define llu "%I64u" #else #define lld "%lld" #define llu "%llu" #endif #define ui(n) ((unsigned int)(n)) #define LL(n) ((long long)(n)) #define ull(n) ((unsigned long long)(n)) #define fl(n) ((float)(n)) #define ld(n) ((long double)(n)) #define char(n) ((char)(n)) #define Bool(n) ((bool)(n)) #define fixpoint(n) fixed << setprecision(n) const int INF = 1061109567; const int NINF = -1044266559; const LL LINF = 4557430888798830399; const ld eps = 1e-15; #define MOD (1000000007) #define PI (3.1415926535897932384626433832795028841971) #define MP make_pair #define MT make_tuple #define All(a) (a).begin(), (a).end() #define pall(a) (a).rbegin(), (a).rend() #define Log(x, y) log(x) / log(y) #define SZ(a) ((int)(a).size()) #define rep(i, n) for (int i = 0; i < ((int)(n)); i++) #define rep1(i, n) for (int i = 1; i <= ((int)(n)); i++) #define repd(i, n) for (int i = ((int)(n)) - 1; i >= 0; i--) #define repd1(i, n) for (int i = ((int)(n)); i >= 1; i--) #define repv(itr, v) \ for (__typeof((v).begin()) itr = (v).begin(); itr != (v).end(); itr++) #define repV(i, v) for (auto i : v) #define repE(i, v) for (auto &i : v) #define MS(x, y) memset(x, y, sizeof(x)) #define MC(x) MS(x, 0) #define MINF(x) MS(x, 63) #define MCP(x, y) memcpy(x, y, sizeof(y)) #define UN(v) sort(All(v)), v.erase(unique(All(v)), v.end()) #define filein(x) freopen(x, "r", stdin) #define fileout(x) freopen(x, "w", stdout) #define fileio(x) \ freopen(x ".in", "r", stdin); \ freopen(x ".out", "w", stdout) #define filein2(filename, name) ifstream name(filename, ios::in) #define fileout2(filename, name) ofstream name(filename, ios::out) #define fileio2(filename, name) fstream name(filename, ios::in | ios::out) #define sqr(x) ((x) * (x)) #define Pause system("pause") #define Cls system("cls") #define fs first #define sc second #define SF scanf #define PF printf const int maxn = 200010; int n, k, a[maxn]; inline bool check(int x) { int cnt = 0; for (int i = 1; i <= n; i++) cnt += a[i] / x + (bool)(a[i] % x) - 1; return cnt <= k; } int main() { SF("%d%d", &n, &k); for (int i = 1; i <= n; i++) SF("%d", &a[i]); int l = 1, r = 1e9 + 1; // [l,r) while (l < r) { int m = (l + r) / 2; if (check(m)) r = m; else l = m + 1; } PF("%d", r); return 0; }
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0
p02598
C++
Runtime Error
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define FILL0(x) memset(x, 0, sizeof(x)) #define FILL1(x) memset(x, -1, sizeof(x)) using namespace std; typedef long long ll; typedef pair<ll, ll> P; template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); int n, k; cin >> n; cin >> k; int a[n]; rep(i, n) { cin >> a[i]; } int l = -1; int r = 1e9; while (r - l > 1) { int mid = (r + l) / 2; auto judge = [&](int val) { ll count = 0; rep(i, n) { count += (a[i] - 1) / val; } return count <= k; }; if (judge(mid)) { r = mid; } else { l = mid; } } cout << r << endl; return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define FILL0(x) memset(x, 0, sizeof(x)) #define FILL1(x) memset(x, -1, sizeof(x)) using namespace std; typedef long long ll; typedef pair<ll, ll> P; template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); int n, k; cin >> n; cin >> k; int a[n]; rep(i, n) { cin >> a[i]; } int l = 0; int r = 1e9; while (r - l > 1) { int mid = (r + l) / 2; auto judge = [&](int val) { ll count = 0; rep(i, n) { count += (a[i] - 1) / val; } return count <= k; }; if (judge(mid)) { r = mid; } else { l = mid; } } cout << r << endl; return 0; }
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0
p02598
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define inf 1001001001 #define mod 1000000007 #define mod2 998244353 #define pi acos(-1) #define all(v) v.begin(), v.end() int k; ll gcd(ll a, ll b) { if (b > a) swap(a, b); if (b == 0) return a; return gcd(b, a % b); } ll lcm(ll a, ll b) { ll g = gcd(a, b); return a / g * b; } ll rep_jijo(ll n, ll x) { if (x == 0) return 1; if (x % 2 == 0) { ll t = rep_jijo(n, x / 2); return t * t % mod; } return n * rep_jijo(n, x - 1) % mod; } int main() { ll n, k; cin >> n; cin >> k; k += 1; vector<double> L(n); rep(i, n) cin >> L[i]; // cin >> k; double l = 0; double r = inf; ll count; auto judge = [&](double x) { count = 0; rep(i, n) count += floor(L[i] / x); if (count >= k) return true; else return false; }; for (int j = 0; j < 2000; j++) { double mid = (l + r) / 2.0; bool flag; flag = judge(mid); if (flag) l = mid; else r = mid; } cout << ll(ceil(l)) << endl; return 0; }
#include <bits/stdc++.h> using namespace std; using ll = long long; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define inf 1001001001 #define mod 1000000007 #define mod2 998244353 #define pi acos(-1) #define all(v) v.begin(), v.end() int k; ll gcd(ll a, ll b) { if (b > a) swap(a, b); if (b == 0) return a; return gcd(b, a % b); } ll lcm(ll a, ll b) { ll g = gcd(a, b); return a / g * b; } ll rep_jijo(ll n, ll x) { if (x == 0) return 1; if (x % 2 == 0) { ll t = rep_jijo(n, x / 2); return t * t % mod; } return n * rep_jijo(n, x - 1) % mod; } int main() { ll n, k; cin >> n; cin >> k; k += 1; vector<double> L(n); rep(i, n) cin >> L[i]; // cin >> k; double l = 0; double r = inf; ll count; auto judge = [&](double x) { count = 0; rep(i, n) count += floor(L[i] / x); if (count >= k) return true; else return false; }; for (int j = 0; j < 100; j++) { double mid = (l + r) / 2.0; bool flag; flag = judge(mid); if (flag) l = mid; else r = mid; } cout << ll(ceil(l)) << endl; return 0; }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> #define ll long long #define scn(n) scanf("%d", &n) #define lscn(n) scanf("%lld", &n) #define lpri(n) printf("%lld", n) #define pri(n) printf("%d", n) #define pln() printf("\n") #define priln(n) printf("%d\n", n) #define lpriln(n) printf("%lld\n", n) #define rep(i, init, n) for (int i = init; i < n; i++) #define pb push_back #define mp make_pair #define F first #define S second #define gcd __gcd #define inf INT_MAX #define ninf INT_MIN using namespace std; const ll mod = 1e9 + 7; const int N = 1e5 + 4; struct util { int sum, mx; }; util tree[4 * N]; int arr[N]; void build(int node, int st, int end) { if (st == end) { tree[node].sum = 0; tree[node].mx = arr[st]; return; } int mid = (st + end) / 2; build(2 * node, st, mid); build(2 * node + 1, mid + 1, end); tree[node].mx = max(tree[2 * node].mx, tree[2 * node + 1].mx); } void update(int node, int st, int end, int ind, int val) { if (st == end) { tree[node].sum += val; return; } int mid = (st + end) / 2; if (ind <= mid) update(2 * node, st, mid, ind, val); else update(2 * node + 1, mid + 1, end, ind, val); tree[node].sum = tree[2 * node].sum + tree[2 * node + 1].sum; } util query(int node, int st, int end, int l, int r) { if (st > r or end < l) { util aux; aux.sum = aux.mx = 0; return aux; } if (st >= l and end <= r) return tree[node]; int mid = (st + end) / 2; util a, b, here; a = query(2 * node, st, mid, l, r); b = query(2 * node + 1, mid + 1, end, l, r); here.sum = a.sum + b.sum; here.mx = max(a.mx, b.mx); return here; } int main() { int n, q; scn(n); scn(q); rep(i, 0, n) scn(arr[i]); build(1, 0, n - 1); vector<pair<int, int>> v[n]; int ans[q]; int prev[N]; // last[x] denotes the previous index in which x was present memset(prev, -1, sizeof(prev)); rep(i, 0, q) { int l, r; scn(l); scn(r); l--; r--; // cout<<l<<" "<<r<<" "<<i<<endl; v[r].emplace_back(l, i); } rep(i, 0, n) { int here = arr[i]; if (prev[here] != -1) update(1, 0, n - 1, prev[here], -1); update(1, 0, n - 1, i, 1); prev[here] = i; for (auto it : v[i]) { int hr = i, hl = it.F, hind = it.S; // cout<<hl<<" "<<hr<<" "<<hind<<endl; util temp = query(1, 0, n - 1, hl, hr); ans[hind] = temp.sum; } } rep(i, 0, q) priln(ans[i]); }
#include <bits/stdc++.h> #define ll long long #define scn(n) scanf("%d", &n) #define lscn(n) scanf("%lld", &n) #define lpri(n) printf("%lld", n) #define pri(n) printf("%d", n) #define pln() printf("\n") #define priln(n) printf("%d\n", n) #define lpriln(n) printf("%lld\n", n) #define rep(i, init, n) for (int i = init; i < n; i++) #define pb push_back #define mp make_pair #define F first #define S second #define gcd __gcd #define inf INT_MAX #define ninf INT_MIN using namespace std; const ll mod = 1e9 + 7; const int N = 5e5 + 4; struct util { int sum, mx; }; util tree[4 * N]; int arr[N]; void build(int node, int st, int end) { if (st == end) { tree[node].sum = 0; tree[node].mx = arr[st]; return; } int mid = (st + end) / 2; build(2 * node, st, mid); build(2 * node + 1, mid + 1, end); tree[node].mx = max(tree[2 * node].mx, tree[2 * node + 1].mx); } void update(int node, int st, int end, int ind, int val) { if (st == end) { tree[node].sum += val; return; } int mid = (st + end) / 2; if (ind <= mid) update(2 * node, st, mid, ind, val); else update(2 * node + 1, mid + 1, end, ind, val); tree[node].sum = tree[2 * node].sum + tree[2 * node + 1].sum; } util query(int node, int st, int end, int l, int r) { if (st > r or end < l) { util aux; aux.sum = aux.mx = 0; return aux; } if (st >= l and end <= r) return tree[node]; int mid = (st + end) / 2; util a, b, here; a = query(2 * node, st, mid, l, r); b = query(2 * node + 1, mid + 1, end, l, r); here.sum = a.sum + b.sum; here.mx = max(a.mx, b.mx); return here; } int main() { int n, q; scn(n); scn(q); rep(i, 0, n) scn(arr[i]); build(1, 0, n - 1); vector<pair<int, int>> v[n]; int ans[q]; int prev[N]; // last[x] denotes the previous index in which x was present memset(prev, -1, sizeof(prev)); rep(i, 0, q) { int l, r; scn(l); scn(r); l--; r--; // cout<<l<<" "<<r<<" "<<i<<endl; v[r].emplace_back(l, i); } rep(i, 0, n) { int here = arr[i]; if (prev[here] != -1) update(1, 0, n - 1, prev[here], -1); update(1, 0, n - 1, i, 1); prev[here] = i; for (auto it : v[i]) { int hr = i, hl = it.F, hind = it.S; // cout<<hl<<" "<<hr<<" "<<hind<<endl; util temp = query(1, 0, n - 1, hl, hr); ans[hind] = temp.sum; } } rep(i, 0, q) priln(ans[i]); }
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0
p02599
C++
Runtime Error
#include <algorithm> #include <iostream> #include <math.h> #include <queue> #include <set> #include <stdio.h> #include <string.h> #include <vector> using namespace std; #define mp make_pair #define pb push_back #define X first #define Y second #define INF 5000005 int t, n, q, x, y; int a[100005], b[100005], tree[100005]; int cur[1000005], r[100005]; bool vis[1000005]; int ans[500005]; vector<pair<pair<int, int>, int>> v; // Query int read(int idx) { int sum = 0; while (idx > 0) { sum += tree[idx]; idx -= (idx & -idx); } return sum; } // Update void update(int idx, int val) { while (idx <= n) { tree[idx] += val; idx += (idx & -idx); } } int main() { // freopen("input.txt","r",stdin); memset(cur, INF, sizeof(cur)); scanf("%d", &n); scanf("%d", &q); // Initialize the tree a[0] = tree[0] = 0; for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = n; i > 0; i--) { r[i] = cur[a[i]]; cur[a[i]] = i; } for (int i = 1; i <= n; i++) { if (!vis[a[i]]) { b[i] = b[i - 1] + 1; vis[a[i]] = true; } else b[i] = b[i - 1]; tree[i] = b[i] - b[i - (i & -i)]; } // Get and Sort Queries for (int i = 0; i < q; i++) { scanf("%d%d", &x, &y); v.pb(mp(mp(x, y), i)); } sort(v.begin(), v.end()); // Query and Update int pos = 0; for (int i = 1; i <= n; i++) { while ((v[pos].X).X == i) { ans[(v[pos].Y)] = read((v[pos].X).Y); pos++; } update(i, -1); // Unmark update(r[i], 1); // Mark } for (int i = 0; i < q; i++) cout << ans[i] << "\n"; }
#include <algorithm> #include <iostream> #include <math.h> #include <queue> #include <set> #include <stdio.h> #include <string.h> #include <vector> using namespace std; #define mp make_pair #define pb push_back #define X first #define Y second #define INF 5000005 int t, n, q, x, y; int a[5000005], b[5000005], tree[5000005]; int cur[1000005], r[5000005]; bool vis[1000005]; int ans[500005]; vector<pair<pair<int, int>, int>> v; // Query int read(int idx) { int sum = 0; while (idx > 0) { sum += tree[idx]; idx -= (idx & -idx); } return sum; } // Update void update(int idx, int val) { while (idx <= n) { tree[idx] += val; idx += (idx & -idx); } } int main() { // freopen("input.txt","r",stdin); memset(cur, INF, sizeof(cur)); scanf("%d", &n); scanf("%d", &q); // Initialize the tree a[0] = tree[0] = 0; for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = n; i > 0; i--) { r[i] = cur[a[i]]; cur[a[i]] = i; } for (int i = 1; i <= n; i++) { if (!vis[a[i]]) { b[i] = b[i - 1] + 1; vis[a[i]] = true; } else b[i] = b[i - 1]; tree[i] = b[i] - b[i - (i & -i)]; } // Get and Sort Queries for (int i = 0; i < q; i++) { scanf("%d%d", &x, &y); v.pb(mp(mp(x, y), i)); } sort(v.begin(), v.end()); // Query and Update int pos = 0; for (int i = 1; i <= n; i++) { while ((v[pos].X).X == i) { ans[(v[pos].Y)] = read((v[pos].X).Y); pos++; } update(i, -1); // Unmark update(r[i], 1); // Mark } for (int i = 0; i < q; i++) cout << ans[i] << "\n"; }
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p02599
C++
Runtime Error
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < n; i++) #define cinf(n, x) \ for (int i = 0; i < (n); i++) \ cin >> x[i]; #define ft first #define sc second #define pb push_back #define lb lower_bound #define ub upper_bound #define all(v) (v).begin(), (v).end() #define LB(a, x) lb(all(a), x) - a.begin() #define UB(a, x) ub(all(a), x) - a.begin() #define mod 1000000007 #define FS fixed << setprecision(15) using namespace std; typedef long long ll; const double pi = 3.141592653589793; template <class T> using V = vector<T>; using Graph = vector<vector<int>>; using P = pair<ll, ll>; typedef unsigned long long ull; typedef long double ldouble; template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } const ll INF = 1e18; const int mx = 200005; class Segtree { public: ll N = 1; ll MX = 2000000; V<ll> dat; explicit Segtree(ll sz) { while (N < sz) N *= 2; } // Range Minimum Query ------------------------- void min_init() { for (int i = 0; i < N; i++) min_update(i, INF); } void min_update(ll k, ll a) { k += N - 1; dat[k] = a; while (k > 0) { k = (k - 1) / 2; dat[k] = min(dat[2 * k + 1], dat[2 * k + 2]); } } ll min_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return INF; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = min_query(a, b, 2 * k + 1, l, m); ll v = min_query(a, b, 2 * k + 2, m, r); return min(u, v); } // Range Maximum Query --------------------------- void max_init() { for (int i = 0; i < N; i++) max_update(i, -INF); } void max_update(ll k, ll a) { k += N - 1; dat[k] = a; while (k > 0) { k = (k - 1) / 2; dat[k] = max(dat[2 * k + 1], dat[2 * k + 2]); } } ll max_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return -INF; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = max_query(a, b, 2 * k + 1, l, m); ll v = max_query(a, b, 2 * k + 2, m, r); return max(u, v); } // Range Sum Query ----------------------------- void sum_update(ll k, ll a) { k += N - 1; dat[k] += a; while (k > 0) { k = (k - 1) / 2; dat[k] = (dat[2 * k + 1] + dat[2 * k + 2]); } } ll sum_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return 0LL; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = sum_query(a, b, 2 * k + 1, l, m); ll v = sum_query(a, b, 2 * k + 2, m, r); return (u + v); } // その他---------------------------------------- /* ll unit(){ return ;//単位元 } ll calc(ll a,ll b){ return ;//演算 } void update(ll k,ll a){ k+=N-1; dat[k]=a; while(k>0){ k=(k-1)/2; dat[k]=calc(dat[2*k+1],dat[2*k+2]); } } ll query(ll a,ll b,ll k,ll l,ll r){ if(r<=a||b<=l)return unit(); if(a<=l&&r<=b)return dat[k]; ll m=(l+r)/2; ll u=min_query(a,b,2*k+1,l,m); ll v=min_query(a,b,2*k+2,m,r); return calc(u,v); } */ }; int main() { cin.tie(0); ios::sync_with_stdio(false); ll n, qq; cin >> n >> qq; V<ll> c(n); Segtree stree(n); V<ll> last(n, -1); rep(i, n) { cin >> c[i]; c[i]--; } V<pair<P, ll>> p(qq); rep(i, qq) { ll l, r; cin >> l >> r; l--; r--; p[i] = make_pair(make_pair(r, l), i); // cout<<how[r]+rhow[l]-M<<'\n'; } sort(all(p)); V<ll> ans(qq); ll pos = 0; rep(i, qq) { for (int j = pos; j <= p[i].ft.ft; j++) { stree.sum_update(j, 1); if (last[c[j]] != -1) stree.sum_update(last[c[j]], -1); last[c[j]] = j; } ans[p[i].sc] = stree.sum_query(p[i].ft.sc, p[i].ft.ft + 1, 0, 0, stree.N); pos = p[i].ft.ft + 1; } rep(i, qq) cout << ans[i] << '\n'; } // ペナルティ出しても焦らない ACできると信じろ!!! // どうしてもわからないときはサンプルで実験 何か見えてくるかも // 頭で考えてダメなら紙におこせ!! /* V,P(大文字)使用不可 乗算などの際にオーバーフローに注意せよ! (適切にmodをとれ にぶたんで途中で切り上げろ) 制約をよく読め! { ・全探索できるなら全探索しろ ・異常な制約ならそこに注目 } stringの計算量(扱い)注意 コーナー注意!(特に数値が小さいものについては要検証) N行出力のときは'¥n' グリッド上では行先が範囲内におさまるかif文で確認(RE注意) if文ではちゃんと比較演算子==を使え('='でもエラー出ない) 配列(vector)の大きさが0か1以上かで場合分けせよ(RE注意) (vector<int> a(m)でm==0というものはできない) modはなるべく最後に取れ! doubleを扱うときには(abs)ではなく'fabs'!!! */
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < n; i++) #define cinf(n, x) \ for (int i = 0; i < (n); i++) \ cin >> x[i]; #define ft first #define sc second #define pb push_back #define lb lower_bound #define ub upper_bound #define all(v) (v).begin(), (v).end() #define LB(a, x) lb(all(a), x) - a.begin() #define UB(a, x) ub(all(a), x) - a.begin() #define mod 1000000007 #define FS fixed << setprecision(15) using namespace std; typedef long long ll; const double pi = 3.141592653589793; template <class T> using V = vector<T>; using Graph = vector<vector<int>>; using P = pair<ll, ll>; typedef unsigned long long ull; typedef long double ldouble; template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } const ll INF = 1e18; const int mx = 200005; class Segtree { public: ll N = 1; ll MX = 2000000; V<ll> dat; explicit Segtree(ll sz) { while (N < sz) N *= 2; dat.reserve(2 * N); } // Range Minimum Query ------------------------- void min_init() { for (int i = 0; i < N; i++) min_update(i, INF); } void min_update(ll k, ll a) { k += N - 1; dat[k] = a; while (k > 0) { k = (k - 1) / 2; dat[k] = min(dat[2 * k + 1], dat[2 * k + 2]); } } ll min_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return INF; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = min_query(a, b, 2 * k + 1, l, m); ll v = min_query(a, b, 2 * k + 2, m, r); return min(u, v); } // Range Maximum Query --------------------------- void max_init() { for (int i = 0; i < N; i++) max_update(i, -INF); } void max_update(ll k, ll a) { k += N - 1; dat[k] = a; while (k > 0) { k = (k - 1) / 2; dat[k] = max(dat[2 * k + 1], dat[2 * k + 2]); } } ll max_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return -INF; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = max_query(a, b, 2 * k + 1, l, m); ll v = max_query(a, b, 2 * k + 2, m, r); return max(u, v); } // Range Sum Query ----------------------------- void sum_update(ll k, ll a) { k += N - 1; dat[k] += a; while (k > 0) { k = (k - 1) / 2; dat[k] = (dat[2 * k + 1] + dat[2 * k + 2]); } } ll sum_query(ll a, ll b, ll k, ll l, ll r) { if (r <= a || b <= l) return 0LL; if (a <= l && r <= b) return dat[k]; ll m = (l + r) / 2; ll u = sum_query(a, b, 2 * k + 1, l, m); ll v = sum_query(a, b, 2 * k + 2, m, r); return (u + v); } // その他---------------------------------------- /* ll unit(){ return ;//単位元 } ll calc(ll a,ll b){ return ;//演算 } void update(ll k,ll a){ k+=N-1; dat[k]=a; while(k>0){ k=(k-1)/2; dat[k]=calc(dat[2*k+1],dat[2*k+2]); } } ll query(ll a,ll b,ll k,ll l,ll r){ if(r<=a||b<=l)return unit(); if(a<=l&&r<=b)return dat[k]; ll m=(l+r)/2; ll u=min_query(a,b,2*k+1,l,m); ll v=min_query(a,b,2*k+2,m,r); return calc(u,v); } */ }; int main() { cin.tie(0); ios::sync_with_stdio(false); ll n, qq; cin >> n >> qq; V<ll> c(n); Segtree stree(n); V<ll> last(n, -1); rep(i, n) { cin >> c[i]; c[i]--; } V<pair<P, ll>> p(qq); rep(i, qq) { ll l, r; cin >> l >> r; l--; r--; p[i] = make_pair(make_pair(r, l), i); // cout<<how[r]+rhow[l]-M<<'\n'; } sort(all(p)); V<ll> ans(qq); ll pos = 0; rep(i, qq) { for (int j = pos; j <= p[i].ft.ft; j++) { stree.sum_update(j, 1); if (last[c[j]] != -1) stree.sum_update(last[c[j]], -1); last[c[j]] = j; } ans[p[i].sc] = stree.sum_query(p[i].ft.sc, p[i].ft.ft + 1, 0, 0, stree.N); pos = p[i].ft.ft + 1; } rep(i, qq) cout << ans[i] << '\n'; } // ペナルティ出しても焦らない ACできると信じろ!!! // どうしてもわからないときはサンプルで実験 何か見えてくるかも // 頭で考えてダメなら紙におこせ!! /* V,P(大文字)使用不可 乗算などの際にオーバーフローに注意せよ! (適切にmodをとれ にぶたんで途中で切り上げろ) 制約をよく読め! { ・全探索できるなら全探索しろ ・異常な制約ならそこに注目 } stringの計算量(扱い)注意 コーナー注意!(特に数値が小さいものについては要検証) N行出力のときは'¥n' グリッド上では行先が範囲内におさまるかif文で確認(RE注意) if文ではちゃんと比較演算子==を使え('='でもエラー出ない) 配列(vector)の大きさが0か1以上かで場合分けせよ(RE注意) (vector<int> a(m)でm==0というものはできない) modはなるべく最後に取れ! doubleを扱うときには(abs)ではなく'fabs'!!! */
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-11
p02599
C++
Time Limit Exceeded
// mai iss duniyaa ka sbse bada chutiyaaa huu #include <bits/stdc++.h> #include <chrono> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define mod 1000000007 #define mod2 998244353 #define int long long #define endl '\n' #define p_b push_back #define m_p make_pair #define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL) using namespace std; using namespace __gnu_pbds; using namespace std::chrono; template <class T> using _ost = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>; char alphabet[26] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}; // rectangle intersection // x5 = max(x1, x3); // y5 = max(y1, y3); // x6 = min(x2, x4); // y6 = min(y2, y4); const int mx = 500005; // char get_next(char c) { // for(int i=0; i<25; i++) if(c == alphabet[i]) return alphabet[i+1]; // return 'a'; // } struct no { int l, r, id; } q[mx]; int bl[mx]; int col[mx]; unordered_map<int, int> mp; void get_blocks(int n) { int sqroot = sqrt(n) + 1; for (int i = 0; i <= n; i++) bl[i] = i / sqroot; } bool mo_sort(no a, no b) { return bl[a.l] == bl[b.l] ? a.r < b.r : bl[a.l] < bl[b.l]; } int diff = 0; void add(int id) { if (!mp[col[id]]) diff++; mp[col[id]]++; } void rem(int id) { mp[col[id]]--; if (mp[col[id]] == 0) diff--; } int32_t main() { fastIO; int tc; // cin >> tc; tc = 1; while (tc--) { int n, qry; cin >> n >> qry; get_blocks(n); for (int i = 0; i < n; i++) cin >> col[i]; for (int i = 0; i < qry; i++) { cin >> q[i].l >> q[i].r; q[i].id = i; } int ans[qry]; sort(q, q + qry, mo_sort); int curl = 0, curr = -1; for (int i = 0; i < qry; i++) { int l = q[i].l - 1, r = q[i].r - 1; while (curl > l) { curl--; add(curl); } while (curr < r) { curr++; add(curr); } while (curl < l) { rem(curl); curl++; } while (curr > r) { rem(curr); curr--; } ans[q[i].id] = diff; } for (int i = 0; i < qry; i++) cout << ans[i] << endl; } }
// mai iss duniyaa ka sbse bada chutiyaaa huu #include <bits/stdc++.h> #include <chrono> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define mod 1000000007 #define mod2 998244353 #define int long long #define endl '\n' #define p_b push_back #define m_p make_pair #define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL) using namespace std; using namespace __gnu_pbds; using namespace std::chrono; template <class T> using _ost = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>; char alphabet[26] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}; // rectangle intersection // x5 = max(x1, x3); // y5 = max(y1, y3); // x6 = min(x2, x4); // y6 = min(y2, y4); const int mx = 500005; // char get_next(char c) { // for(int i=0; i<25; i++) if(c == alphabet[i]) return alphabet[i+1]; // return 'a'; // } struct no { int l, r, id; } q[mx]; int bl[mx]; int col[mx]; int mp[mx]; void get_blocks(int n) { int sqroot = sqrt(n) + 1; for (int i = 0; i <= n; i++) bl[i] = i / sqroot; } bool mo_sort(no a, no b) { return bl[a.l] == bl[b.l] ? a.r < b.r : bl[a.l] < bl[b.l]; } int diff = 0; void add(int id) { if (!mp[col[id]]) diff++; mp[col[id]]++; } void rem(int id) { mp[col[id]]--; if (mp[col[id]] == 0) diff--; } int32_t main() { fastIO; int tc; // cin >> tc; tc = 1; while (tc--) { int n, qry; cin >> n >> qry; get_blocks(n); for (int i = 0; i < n; i++) cin >> col[i]; for (int i = 0; i < qry; i++) { cin >> q[i].l >> q[i].r; q[i].id = i; } int ans[qry]; sort(q, q + qry, mo_sort); int curl = 0, curr = -1; for (int i = 0; i < qry; i++) { int l = q[i].l - 1, r = q[i].r - 1; while (curl > l) { curl--; add(curl); } while (curr < r) { curr++; add(curr); } while (curl < l) { rem(curl); curl++; } while (curr > r) { rem(curr); curr--; } ans[q[i].id] = diff; } for (int i = 0; i < qry; i++) cout << ans[i] << endl; } }
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TLE
p02599
C++
Runtime Error
#include <algorithm> #include <iostream> #include <map> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <string> #include <vector> using namespace std; const int maxn = 10000; int n = 0, q = 0; struct Query { int id, l, r; bool operator<(Query a) const { return r < a.r; } } query[maxn]; int v[maxn], sum[maxn], ans[maxn]; int lowbit(int x) { return x & (-x); } void change(int i, int a) { while (i <= n) { sum[i] += a; i += lowbit(i); } } int getsum(int i) { int sum_t = 0; while (i > 0) { sum_t += sum[i]; i -= lowbit(i); } return sum_t; } int main() { scanf("%d", &n); scanf("%d", &q); memset(v, 0, sizeof(v)); memset(sum, 0, sizeof(sum)); memset(ans, 0, sizeof(ans)); int t = 0; for (int i = 1; i <= n; i++) { scanf("%d", &v[i]); } for (int i = 1; i <= q; i++) { scanf("%d%d", &query[i].l, &query[i].r); query[i].id = i; } sort(query + 1, query + q + 1); int pre = 1; map<int, int> mymap; for (int i = 1; i <= q; i++) { for (int j = pre; j <= query[i].r; j++) { // 已存在 if (mymap[v[j]]) { change(mymap[v[j]], -1); } mymap[v[j]] = j; change(j, 1); } pre = query[i].r + 1; ans[query[i].id] = getsum(query[i].r) - getsum(query[i].l - 1); } for (int i = 1; i <= q; i++) { cout << ans[i] << endl; } return 0; }
#include <algorithm> #include <iostream> #include <map> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <string> #include <vector> using namespace std; const int maxn = 1e6 + 7; int n = 0, q = 0; struct Query { int id, l, r; bool operator<(Query a) const { return r < a.r; } } query[maxn]; int v[maxn], sum[maxn], ans[maxn]; int lowbit(int x) { return x & (-x); } void change(int i, int a) { while (i <= n) { sum[i] += a; i += lowbit(i); } } int getsum(int i) { int sum_t = 0; while (i > 0) { sum_t += sum[i]; i -= lowbit(i); } return sum_t; } int main() { scanf("%d", &n); scanf("%d", &q); memset(v, 0, sizeof(v)); memset(sum, 0, sizeof(sum)); memset(ans, 0, sizeof(ans)); int t = 0; for (int i = 1; i <= n; i++) { scanf("%d", &v[i]); } for (int i = 1; i <= q; i++) { scanf("%d%d", &query[i].l, &query[i].r); query[i].id = i; } sort(query + 1, query + q + 1); int pre = 1; map<int, int> mymap; for (int i = 1; i <= q; i++) { for (int j = pre; j <= query[i].r; j++) { // 已存在 if (mymap[v[j]]) { change(mymap[v[j]], -1); } mymap[v[j]] = j; change(j, 1); } pre = query[i].r + 1; ans[query[i].id] = getsum(query[i].r) - getsum(query[i].l - 1); } for (int i = 1; i <= q; i++) { cout << ans[i] << endl; } return 0; }
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0
p02599
C++
Runtime Error
// #pragma comment(linker, "/stack:200000000") // #pragma GCC optimize("Ofast") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx") // #pragma warning(disable : 4996) #include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; #define int long long #define F first #define S second #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define len(s) (int)(s).size() // #define endl '\n' inline void accell() { cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0); } template <class T> ostream &operator<<(ostream &out, const pair<int, int> &X) { out << X.first << ' ' << X.second << endl; return out; } template <class T> ostream &operator<<(ostream &out, const vector<T> &X) { for (const auto &it : X) out << it << ' '; return out; } template <class T> ostream &operator<<(ostream &out, const set<T> &X) { for (const auto &it : X) out << it << ' '; return out; } template <class T> void dbg(const T &X) { cerr << "DEBUG: " << ": "; cerr << X << endl; } const int MOD1 = 1e9 + 7; const int N = 3e5; const int MOD2 = 998244353; const int inf = 1e13; const int mx = (1 << 19) - 1; const int mod = 1e9 + 7; int fenv[N]; void add(int v, int x) { if (v < 0) return; for (int i = v; i < N; i |= (i + 1)) fenv[i] += x; } int sum(int r) { int res = 0; for (int i = r; i >= 0; i = (i & (i + 1)) - 1) res += fenv[i]; return res; } int get(int l, int r) { return sum(r) - sum(l - 1); } signed main() { accell(); #ifdef LOCAL freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif int n, q; cin >> n >> q; vector<int> c(n); for (int i = 0; i < n; ++i) { cin >> c[i]; --c[i]; } vector<int> lst(n, -1); vector<int> cur(n, -1); for (int i = 0; i < n; ++i) { cur[i] = lst[c[i]]; lst[c[i]] = i; } vector<pair<pair<int, int>, int>> v(q); for (int i = 0; i < q; ++i) { cin >> v[i].first.first >> v[i].first.second; v[i].first.first--, v[i].first.second--; v[i].second = i; } sort(all(v), [&](pair<pair<int, int>, int> x, pair<pair<int, int>, int> y) { return x.first.second < y.first.second; }); int j = 0; vector<int> ans(q); for (int i = 0; i < n; ++i) { add(i, 1); add(cur[i], -1); while (j < len(v) && v[j].first.second == i) { ans[v[j].second] = get(v[j].first.first, v[j].first.second); ++j; } } for (int i = 0; i < q; ++i) { cout << ans[i] << '\n'; } return 0; }
// #pragma comment(linker, "/stack:200000000") // #pragma GCC optimize("Ofast") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx") // #pragma warning(disable : 4996) #include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; #define int long long #define F first #define S second #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define len(s) (int)(s).size() // #define endl '\n' inline void accell() { cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0); } template <class T> ostream &operator<<(ostream &out, const pair<int, int> &X) { out << X.first << ' ' << X.second << endl; return out; } template <class T> ostream &operator<<(ostream &out, const vector<T> &X) { for (const auto &it : X) out << it << ' '; return out; } template <class T> ostream &operator<<(ostream &out, const set<T> &X) { for (const auto &it : X) out << it << ' '; return out; } template <class T> void dbg(const T &X) { cerr << "DEBUG: " << ": "; cerr << X << endl; } const int MOD1 = 1e9 + 7; const int N = 5e5 + 25; const int MOD2 = 998244353; const int inf = 1e13; const int mx = (1 << 19) - 1; const int mod = 1e9 + 7; int fenv[N]; void add(int v, int x) { if (v < 0) return; for (int i = v; i < N; i |= (i + 1)) fenv[i] += x; } int sum(int r) { int res = 0; for (int i = r; i >= 0; i = (i & (i + 1)) - 1) res += fenv[i]; return res; } int get(int l, int r) { return sum(r) - sum(l - 1); } signed main() { accell(); #ifdef LOCAL freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif int n, q; cin >> n >> q; vector<int> c(n); for (int i = 0; i < n; ++i) { cin >> c[i]; --c[i]; } vector<int> lst(n, -1); vector<int> cur(n, -1); for (int i = 0; i < n; ++i) { cur[i] = lst[c[i]]; lst[c[i]] = i; } vector<pair<pair<int, int>, int>> v(q); for (int i = 0; i < q; ++i) { cin >> v[i].first.first >> v[i].first.second; v[i].first.first--, v[i].first.second--; v[i].second = i; } sort(all(v), [&](pair<pair<int, int>, int> x, pair<pair<int, int>, int> y) { return x.first.second < y.first.second; }); int j = 0; vector<int> ans(q); for (int i = 0; i < n; ++i) { add(i, 1); add(cur[i], -1); while (j < len(v) && v[j].first.second == i) { ans[v[j].second] = get(v[j].first.first, v[j].first.second); ++j; } } for (int i = 0; i < q; ++i) { cout << ans[i] << '\n'; } return 0; }
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0
p02599
C++
Time Limit Exceeded
#include <algorithm> #include <cmath> #include <cstdio> #include <cstdlib> #include <fstream> #include <iomanip> #include <iostream> #include <list> #include <map> #include <set> #include <string> #include <vector> #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL) #define forl(i, a, n) for (int i = a; i < n; i++) #define rfor(i, n, a) for (int i = n; i >= a; i--) #define ll long long #define ull unsigned long long #define ld long double #define pb push_back #define ld long double #define vi vector<int> #define vll vector<long long> #define pi pair<int, int> #define pll pair<long long, long long> #define mp make_pair #define B begin() #define E end() #define S size() #define m9 1000000007 using namespace std; ll gcd(ll x, ll y) { if (x == 0) return y; return gcd(y % x, x); } /* ll gcdextended(ll a, ll b, ll *x, ll *y) { if (a == 0) { *x = 0, *y = 1; return b; } ll x1, y1; int gcd = gcdextended(b%a, a, &x1, &y1); *x = y1 - (b/a) * x1; *y = x1; return gcd; } ///RELATIVE COPRIME ll modinverse(ll a, ll m) { ll x, y; ll g = gcdextended(a, m, &x, &y); if (g != 1) return -1; else { ll res = (x%m + m) % m; return res; } } */ ll powmod(ll x, ll y, ll m) { if (y == 0) return 1; ll p = powmod(x, y / 2, m) % m; p = (p * p) % m; return (y % 2 == 0) ? p : (x * p) % m; } /// M IS PRIME ll modif(ll x, ll m) { return (powmod(x, m - 2, m)); } #define p0(a) cout << a << " " #define p1(a) cout << a << endl #define p2(a, b) cout << a << " " << b << endl #define p3(a, b, c) cout << a << " " << b << " " << c << endl #define p4(a, b, c, d) cout << a << " " << b << " " << c << " " << d << endl #define pin(a) \ for (auto x : a) \ cout << x << " "; \ cout << endl #define fck(a) \ cout << a; \ exit(0) #define vvll vector<vector<ll>> #define A(b) b.begin(), b.end() #define vpi std::vector<pll> #include <array> #include <stack> // include<bits/stdc++.h> bool fa(vll &x, vll &y) { return x[0] < y[0]; } bool fa1(vll &x, vll &y) { return x[1] < y[1]; } bool f1(pll &x, pll &y) { return x.second > y.second; } bool f2(pll &x, pll &y) { return x.first > y.first; } bool f3(ll &x, ll &y) { return x > y; } ll te; ll n, qq; ll block = 708; bool meow(array<ll, 3> x, array<ll, 3> &y) { if (x[0] / block != y[0] / block) { return x[0] / block < y[0] / block; } else { return x[1] < y[1]; } } const ll maxn = 5e5 + 2; ll d[maxn]; ll b[maxn]; ll cnt = 0; void add(ll pos) { d[b[pos]]++; if (d[b[pos]] == 1) cnt++; } void remove(ll pos) { d[b[pos]]--; if (d[b[pos]] == 0) cnt--; } int main() { fastio; // freopen("test_input (1).xt", "r", stdin); // freopen("output.txt", "w", stdout); cin >> n >> qq; forl(i, 0, n) d[i] = 0; forl(i, 0, n) cin >> b[i]; std::vector<array<ll, 3>> q(qq); forl(i, 0, qq) { cin >> q[i][0] >> q[i][1]; q[i][0]--; q[i][1]--; q[i][2] = i; } ll ans[qq]; forl(i, 0, qq) ans[i] = -1; sort(q.B, q.E, meow); // for(auto x:q){ // p2(x[0]+1,x[1]+1); // } ll ml = 0, mr = -1; forl(i, 0, qq) { ll l = q[i][0], r = q[i][1]; while (ml > l) { ml--; add(ml); } while (mr < r) { mr++; add(mr); } while (ml < l) { remove(ml); ml++; } while (mr > r) { remove(mr); mr--; } ans[q[i][2]] = cnt; } for (auto x : ans) { cout << x << "\n"; } return 0; }
#include <algorithm> #include <cmath> #include <cstdio> #include <cstdlib> #include <fstream> #include <iomanip> #include <iostream> #include <list> #include <map> #include <set> #include <string> #include <vector> #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL) #define forl(i, a, n) for (int i = a; i < n; i++) #define rfor(i, n, a) for (int i = n; i >= a; i--) #define ll long long #define ull unsigned long long #define ld long double #define pb push_back #define ld long double #define vi vector<int> #define vll vector<long long> #define pi pair<int, int> #define pll pair<long long, long long> #define mp make_pair #define B begin() #define E end() #define S size() #define m9 1000000007 using namespace std; ll gcd(ll x, ll y) { if (x == 0) return y; return gcd(y % x, x); } /* ll gcdextended(ll a, ll b, ll *x, ll *y) { if (a == 0) { *x = 0, *y = 1; return b; } ll x1, y1; int gcd = gcdextended(b%a, a, &x1, &y1); *x = y1 - (b/a) * x1; *y = x1; return gcd; } ///RELATIVE COPRIME ll modinverse(ll a, ll m) { ll x, y; ll g = gcdextended(a, m, &x, &y); if (g != 1) return -1; else { ll res = (x%m + m) % m; return res; } } */ ll powmod(ll x, ll y, ll m) { if (y == 0) return 1; ll p = powmod(x, y / 2, m) % m; p = (p * p) % m; return (y % 2 == 0) ? p : (x * p) % m; } /// M IS PRIME ll modif(ll x, ll m) { return (powmod(x, m - 2, m)); } #define p0(a) cout << a << " " #define p1(a) cout << a << endl #define p2(a, b) cout << a << " " << b << endl #define p3(a, b, c) cout << a << " " << b << " " << c << endl #define p4(a, b, c, d) cout << a << " " << b << " " << c << " " << d << endl #define pin(a) \ for (auto x : a) \ cout << x << " "; \ cout << endl #define fck(a) \ cout << a; \ exit(0) #define vvll vector<vector<ll>> #define A(b) b.begin(), b.end() #define vpi std::vector<pll> #include <array> #include <stack> // include<bits/stdc++.h> bool fa(vll &x, vll &y) { return x[0] < y[0]; } bool fa1(vll &x, vll &y) { return x[1] < y[1]; } bool f1(pll &x, pll &y) { return x.second > y.second; } bool f2(pll &x, pll &y) { return x.first > y.first; } bool f3(ll &x, ll &y) { return x > y; } ll te; ll n, qq; ll block = 800; bool meow(array<ll, 3> x, array<ll, 3> &y) { if (x[0] / block != y[0] / block) { return x[0] / block < y[0] / block; } else { return x[1] < y[1]; } } const ll maxn = 5e5 + 2; ll d[maxn]; ll b[maxn]; ll cnt = 0; void add(ll pos) { d[b[pos]]++; if (d[b[pos]] == 1) cnt++; } void remove(ll pos) { d[b[pos]]--; if (d[b[pos]] == 0) cnt--; } int main() { fastio; // freopen("test_input (1).xt", "r", stdin); // freopen("output.txt", "w", stdout); cin >> n >> qq; forl(i, 0, n) d[i] = 0; forl(i, 0, n) cin >> b[i]; std::vector<array<ll, 3>> q(qq); forl(i, 0, qq) { cin >> q[i][0] >> q[i][1]; q[i][0]--; q[i][1]--; q[i][2] = i; } ll ans[qq]; forl(i, 0, qq) ans[i] = -1; sort(q.B, q.E, meow); // for(auto x:q){ // p2(x[0]+1,x[1]+1); // } ll ml = 0, mr = -1; forl(i, 0, qq) { ll l = q[i][0], r = q[i][1]; while (ml > l) { ml--; add(ml); } while (mr < r) { mr++; add(mr); } while (ml < l) { remove(ml); ml++; } while (mr > r) { remove(mr); mr--; } ans[q[i][2]] = cnt; } for (auto x : ans) { cout << x << "\n"; } return 0; }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < n; i++) #define REP(i, m, n) for (ll i = (ll)(m); i < (ll)(n); i++) #define fi first #define se second long long mo = 1000000007; typedef long long ll; typedef long double ld; typedef pair<int, int> Pii; typedef pair<ll, ll> Pll; typedef pair<ll, Pll> Plp; template <class T, class S> void cmin(T &a, const S &b) { if (a > b) a = b; } template <class T, class S> void cmax(T &a, const S &b) { if (a < b) a = b; } template <class A> void PR(A a, ll n) { rep(i, n) { if (i) cout << ' '; cout << a[i]; } cout << "\n"; } ld PI = 3.14159265358979323846; template <typename T> struct BIT { int n; vector<T> d; BIT(int n = 0) : n(n), d(n + 1) {} void add(int i, T x = 1) { for (i++; i <= n; i += i & -i) { d[i] += x; } } T sum(int i) { T x = 0; for (i++; i; i -= i & -i) { x += d[i]; } return x; } T sum(int l, int r) { return sum(r - 1) - sum(l - 1); } }; int main() { ll N, Q; cin >> N >> Q; vector<ll> a(N), l(Q), r(Q), pi(N + 1, -1); rep(i, N) { cin >> a[i]; } vector<vector<Pll>> qs(N); rep(i, Q) { cin >> l[i] >> r[i]; l[i]--; r[i]--; qs[l[i]].push_back(Pll(r[i], i)); } vector<vector<ll>> ps(N); rep(i, N) { ll l = pi[a[i]]; if (l != -1) ps[l].push_back(i); pi[a[i]] = i; } BIT<ll> d(N); vector<ll> ans(N); for (ll i = N - 1; i >= 0; i--) { for (auto &y : ps[i]) d.add(y, 1); for (auto &p : qs[i]) { ans[p.se] = (p.fi - i + 1) - d.sum(p.fi); } } rep(i, Q) cout << ans[i] << endl; }
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < n; i++) #define REP(i, m, n) for (ll i = (ll)(m); i < (ll)(n); i++) #define fi first #define se second long long mo = 1000000007; typedef long long ll; typedef long double ld; typedef pair<int, int> Pii; typedef pair<ll, ll> Pll; typedef pair<ll, Pll> Plp; template <class T, class S> void cmin(T &a, const S &b) { if (a > b) a = b; } template <class T, class S> void cmax(T &a, const S &b) { if (a < b) a = b; } template <class A> void PR(A a, ll n) { rep(i, n) { if (i) cout << ' '; cout << a[i]; } cout << "\n"; } ld PI = 3.14159265358979323846; template <typename T> struct BIT { int n; vector<T> d; BIT(int n = 0) : n(n), d(n + 1) {} void add(int i, T x = 1) { for (i++; i <= n; i += i & -i) { d[i] += x; } } T sum(int i) { T x = 0; for (i++; i; i -= i & -i) { x += d[i]; } return x; } T sum(int l, int r) { return sum(r - 1) - sum(l - 1); } }; int main() { ll N, Q; cin >> N >> Q; vector<ll> a(N), l(Q), r(Q), pi(N + 1, -1); rep(i, N) { cin >> a[i]; } vector<vector<Pll>> qs(N); rep(i, Q) { cin >> l[i] >> r[i]; l[i]--; r[i]--; qs[l[i]].push_back(Pll(r[i], i)); } vector<vector<ll>> ps(N); rep(i, N) { ll l = pi[a[i]]; if (l != -1) ps[l].push_back(i); pi[a[i]] = i; } BIT<ll> d(N); vector<ll> ans(Q); for (ll i = N - 1; i >= 0; i--) { for (auto &y : ps[i]) d.add(y, 1); for (auto &p : qs[i]) { ans[p.se] = (p.fi - i + 1) - d.sum(p.fi); } } rep(i, Q) cout << ans[i] << endl; }
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0
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> using namespace std; struct req { int l, r, val, idx; bool t; }; bool operator<(req a, req b) { if (a.r == b.r) { return a.t < b.t; } return a.r < b.r; } int bit[500001]; void add(int y, int val) { while (y <= 500000) { bit[y] += val; y += (y & -y); } } int sum(int y) { int res = 0; while (y > 0) { res += bit[y]; y -= (y & -y); } return res; } bool visited[2000001]; req arr[600000]; int main() { int N, Q, i; int *prev = new int[2000001]; for (i = 0; i <= 2000000; ++i) { visited[i] = false; prev[i] = 0; } scanf("%d", &N); scanf("%d", &Q); for (i = 1; i <= N; ++i) { add(i, 1); } for (i = 0; i < N; ++i) { scanf("%d", &arr[i].val); arr[i].idx = i + 1; arr[i].t = 0; arr[i].r = i + 1; } for (i = N; i < N + Q; ++i) { scanf("%d%d", &arr[i].l, &arr[i].r); arr[i].idx = i - N; arr[i].t = 1; } sort(arr, arr + N + Q); int ans[Q]; for (i = 0; i < N + Q; ++i) { if (arr[i].t) { ans[arr[i].idx] = sum(arr[i].r) - sum(arr[i].l - 1); } else { if (visited[arr[i].val]) { if (prev[arr[i].val] != 0) { add(prev[arr[i].val], -1); } } visited[arr[i].val] = true; prev[arr[i].val] = arr[i].idx; } } for (i = 0; i < Q; ++i) { printf("%d\n", ans[i]); } return 0; }
#include <algorithm> #include <cstdio> using namespace std; struct req { int l, r, val, idx; bool t; }; bool operator<(req a, req b) { if (a.r == b.r) { return a.t < b.t; } return a.r < b.r; } int bit[500001]; void add(int y, int val) { while (y <= 500000) { bit[y] += val; y += (y & -y); } } int sum(int y) { int res = 0; while (y > 0) { res += bit[y]; y -= (y & -y); } return res; } bool visited[2000001]; req arr[1000005]; int main() { int N, Q, i; int *prev = new int[2000001]; for (i = 0; i <= 2000000; ++i) { visited[i] = false; prev[i] = 0; } scanf("%d", &N); scanf("%d", &Q); for (i = 1; i <= N; ++i) { add(i, 1); } for (i = 0; i < N; ++i) { scanf("%d", &arr[i].val); arr[i].idx = i + 1; arr[i].t = 0; arr[i].r = i + 1; } for (i = N; i < N + Q; ++i) { scanf("%d%d", &arr[i].l, &arr[i].r); arr[i].idx = i - N; arr[i].t = 1; } sort(arr, arr + N + Q); int ans[Q]; for (i = 0; i < N + Q; ++i) { if (arr[i].t) { ans[arr[i].idx] = sum(arr[i].r) - sum(arr[i].l - 1); } else { if (visited[arr[i].val]) { if (prev[arr[i].val] != 0) { add(prev[arr[i].val], -1); } } visited[arr[i].val] = true; prev[arr[i].val] = arr[i].idx; } } for (i = 0; i < Q; ++i) { printf("%d\n", ans[i]); } return 0; }
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0
p02599
C++
Runtime Error
// Patwari26 // #include template<t> as mine #include <bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define endl '\n' #define mii map<ll, ll> #define pii pair<ll, ll> #define vi vector<ll> #define all(a) (a).begin(), (a).end() #define x first #define y second #define sz(x) (ll) x.size() #define hell 1000000007 #define INF (1ll << 60) #define rep(i, a, b) for (ll i = a; i <= b; i++) #define rrep(i, a, b) for (ll i = a; i >= b; i--) #define ios \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define time \ cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a % b); } ll lcm(ll a, ll b) { return a * (b / gcd(a, b)); } const int N = 500005; // We will represent each query as three numbers: L, R, idx. Idx is // the position (in original order) of this query. pair<pair<int, int>, int> queries[100500]; int BLOCK_SIZE; int arr[500005]; long long cnt[500005]; // Essential part of Mo's algorithm: comparator, which we will // use with std::sort. It is a function, which must return True // if query x must come earlier than query y, and False otherwise. inline bool mo_cmp(const pair<pair<int, int>, int> &x, const pair<pair<int, int>, int> &y) { int block_x = x.first.first / BLOCK_SIZE; int block_y = y.first.first / BLOCK_SIZE; if (block_x != block_y) return block_x < block_y; return x.first.second < y.first.second; } ll val[N]; void solve() { ll n, q; cin >> n; cin >> q; BLOCK_SIZE = static_cast<int>(sqrt(n)); rep(i, 0, n - 1) cin >> arr[i]; rep(i, 0, q - 1) { cin >> queries[i].first.first >> queries[i].first.second; queries[i].second = i; } sort(queries, queries + q, mo_cmp); int mo_left = 0, mo_right = -1; ll cc = 0; ll ans[q]; for (int i = 0; i < q; i++) { // [left, right] is what query we must answer now. int left = queries[i].first.first - 1; // -1 for zero based indexing int right = queries[i].first.second - 1; // -1 for zero based indexing // Usual part of applying Mo's algorithm: moving mo_left // and mo_right. while (mo_right < right) { mo_right++; cnt[arr[mo_right]]++; if (cnt[arr[mo_right]] == 1) cc++; } while (mo_right > right) { if (cnt[arr[mo_right]] == 1) cc--; cnt[arr[mo_right]]--; mo_right--; } while (mo_left < left) { if (cnt[arr[mo_left]] == 1) cc--; cnt[arr[mo_left]]--; mo_left++; } while (mo_left > left) { mo_left--; cnt[arr[mo_left]]++; if (cnt[arr[mo_left]] == 1) cc++; } ans[queries[i].second] = cc; } rep(i, 0, q - 1) { cout << ans[i] << endl; } } signed main() { ios int TESTS = 1; // cin>>TESTS; while (TESTS--) { solve(); } // time return 0; }
// Patwari26 // #include template<t> as mine #include <bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define endl '\n' #define mii map<ll, ll> #define pii pair<ll, ll> #define vi vector<ll> #define all(a) (a).begin(), (a).end() #define x first #define y second #define sz(x) (ll) x.size() #define hell 1000000007 #define INF (1ll << 60) #define rep(i, a, b) for (ll i = a; i <= b; i++) #define rrep(i, a, b) for (ll i = a; i >= b; i--) #define ios \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define time \ cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a % b); } ll lcm(ll a, ll b) { return a * (b / gcd(a, b)); } const int N = 500005; // We will represent each query as three numbers: L, R, idx. Idx is // the position (in original order) of this query. pair<pair<int, int>, int> queries[500500]; int BLOCK_SIZE; int arr[500005]; long long cnt[500005]; // Essential part of Mo's algorithm: comparator, which we will // use with std::sort. It is a function, which must return True // if query x must come earlier than query y, and False otherwise. inline bool mo_cmp(const pair<pair<int, int>, int> &x, const pair<pair<int, int>, int> &y) { int block_x = x.first.first / BLOCK_SIZE; int block_y = y.first.first / BLOCK_SIZE; if (block_x != block_y) return block_x < block_y; return x.first.second < y.first.second; } ll val[N]; void solve() { ll n, q; cin >> n; cin >> q; BLOCK_SIZE = static_cast<int>(sqrt(n)); rep(i, 0, n - 1) cin >> arr[i]; rep(i, 0, q - 1) { cin >> queries[i].first.first >> queries[i].first.second; queries[i].second = i; } sort(queries, queries + q, mo_cmp); int mo_left = 0, mo_right = -1; ll cc = 0; ll ans[q]; for (int i = 0; i < q; i++) { // [left, right] is what query we must answer now. int left = queries[i].first.first - 1; // -1 for zero based indexing int right = queries[i].first.second - 1; // -1 for zero based indexing // Usual part of applying Mo's algorithm: moving mo_left // and mo_right. while (mo_right < right) { mo_right++; cnt[arr[mo_right]]++; if (cnt[arr[mo_right]] == 1) cc++; } while (mo_right > right) { if (cnt[arr[mo_right]] == 1) cc--; cnt[arr[mo_right]]--; mo_right--; } while (mo_left < left) { if (cnt[arr[mo_left]] == 1) cc--; cnt[arr[mo_left]]--; mo_left++; } while (mo_left > left) { mo_left--; cnt[arr[mo_left]]++; if (cnt[arr[mo_left]] == 1) cc++; } ans[queries[i].second] = cc; } rep(i, 0, q - 1) { cout << ans[i] << endl; } } signed main() { ios int TESTS = 1; // cin>>TESTS; while (TESTS--) { solve(); } // time return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> // #pragma GCC optimize("Ofast") #define fi first #define se second #define ll long long #define dl double long using namespace std; const int NN = 1e9 + 7; const int N = 2e5 + 7; const int M = 26; const ll mod = 1e9 + 7; const int inf = 1e9 + 7; const dl rf = 1e-14; const int B = sqrt(N); mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); int n, q; int c[N]; int t[N]; int res[N]; int last[N]; vector<pair<int, int>> qr[N]; void upd(int x, int y) { while (x < N) { t[x] += y; x += x & -x; } } int get(int x) { int res = 0; while (x > 0) { res += t[x]; x -= x & -x; } return res; } void solve1() { cin >> n >> q; for (int i = 1; i <= n; i++) cin >> c[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; qr[r].push_back({l, i}); } for (int i = 1; i <= n; i++) { if (last[c[i]] != 0) upd(last[c[i]], -1); upd(i, 1); last[c[i]] = i; for (auto x : qr[i]) { res[x.se] = get(i) - get(x.fi - 1); } } for (int i = 1; i <= q; i++) { cout << res[i] << "\n"; } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // freopen( "input.txt" , "r" , stdin ); // freopen( "output.txt" , "w" , stdout ); int cghf = 1; // cin >> cghf; while (cghf--) { solve1(); } }
#include <bits/stdc++.h> // #pragma GCC optimize("Ofast") #define fi first #define se second #define ll long long #define dl double long using namespace std; const int NN = 1e9 + 7; const int N = 1e6 + 7; const int M = 26; const ll mod = 1e9 + 7; const int inf = 1e9 + 7; const dl rf = 1e-14; const int B = sqrt(N); mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); int n, q; int c[N]; int t[N]; int res[N]; int last[N]; vector<pair<int, int>> qr[N]; void upd(int x, int y) { while (x < N) { t[x] += y; x += x & -x; } } int get(int x) { int res = 0; while (x > 0) { res += t[x]; x -= x & -x; } return res; } void solve1() { cin >> n >> q; for (int i = 1; i <= n; i++) cin >> c[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; qr[r].push_back({l, i}); } for (int i = 1; i <= n; i++) { if (last[c[i]] != 0) upd(last[c[i]], -1); upd(i, 1); last[c[i]] = i; for (auto x : qr[i]) { res[x.se] = get(i) - get(x.fi - 1); } } for (int i = 1; i <= q; i++) { cout << res[i] << "\n"; } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // freopen( "input.txt" , "r" , stdin ); // freopen( "output.txt" , "w" , stdout ); int cghf = 1; // cin >> cghf; while (cghf--) { solve1(); } }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; // TEMPLATE #define pb push_back #define mp make_pair #define ll int #define ld long double #define pii pair<ll, ll> #define piii pair<ll, pii> #define F first #define S second #define newline printf("\n") #define minusone printf("-1\n") #define zeroo printf("0\n") #define scl1(a) scanf("%lld", &a) #define scl2(a, b) scanf("%lld %lld", &a, &b) #define scl3(a, b, c) scanf("%lld %lld %lld", &a, &b, &c) #define prl1(a) printf("%lld\n", a) #define prl2(a, b) printf("%lld %lld\n", a, b) #define ssl1(s) scanf(" %[^\n]", s) #define scd1(a) scanf("%lf", &a) #define scd2(a, b) scanf("%lf %lf", &a, &b) #define prd(a) printf("%lf\n", a) #define prld(a) printf("%Lf\n", a) #define prcase(cs) printf("Case %lld: ", cs) #define cin1(a) cin >> a #define cin2(a, b) cin >> a >> b #define cin3(a, b, c) cin >> a >> b >> c #define cin4(a, b, c, d) cin >> a >> b >> c >> d #define cot1(a) cout << a << "\n" #define cot2(a, b) cout << a << " " << b << "\n" #define cot3(a, b, c) cout << a << " " << b << " " << c << "\n" #define cot4(a, b, c, d) cout << a << " " << b << " " << c << " " << d << "\n" #define cotline cout << "\n" #define cotminus cout << "-1\n" #define cot0 cout << "0\n" #define cotyes cout << "YES\n" #define cotno cout << "NO\n" #define cotcase(cs) cout << "Case " << cs << ": " #define reversed(s) reverse(s.begin(), s.end()) #define asort(s) sort(s.begin(), s.end()) #define dsort(s) sort(s.rbegin(), s.rend()) #define all(s) s.begin(), s.end() #define uniq(s) s.resize(distance(s.begin(), unique(s.begin(), s.end()))) #define found(s, x) (s.find(x) != s.end()) #define for0(i, n) for (i = 0; i < n; i++) #define for1(i, n) for (i = 1; i <= n; i++) #define fora(i, a, b) for (i = a; i <= b; i++) #define forb(i, b, a) for (i = b; i >= a; i--) #define fori(it, s) for (auto it = s.begin(); it != s.end(); it++) #define FR \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define ms(a, x) memset(a, x, sizeof a) #define bitcount(n) __builtin_popcountll(n) // #define pi 3.1415926536 #define pi acos(-1) const ll INF = LLONG_MAX; const ll SZ = 5e5 + 5; const ll mod = 1e9 + 7; struct query { ll l, r, id; } q[SZ]; ll ans[SZ]; ll cnt[SZ]; ll n, total_q, block_size; ll l = 0, r = -1, total = 0; ll a[SZ]; bool cmp(query a, query b) { ll block_a = a.l / block_size; ll block_b = b.l / block_size; if (block_a == block_b) return a.r < b.r; return block_a < block_b; } void add(ll in) { cnt[a[in]]++; if (cnt[a[in]] == 1) total++; } void remove(ll in) { cnt[a[in]]--; if (cnt[a[in]] == 0) total--; } int main() { FR; ll cs = 0, tc = 1, x, y, z, i, j, k, g, p, sum = 0, c = 0, t = 0; // ll a, b, d; string s, s1, s2; cin2(n, total_q); for0(i, n) cin1(a[i]); block_size = 800; for0(i, total_q) { cin2(x, y); x--, y--; q[i].l = x, q[i].r = y; q[i].id = i; } sort(q, q + total_q, cmp); for0(i, total_q) { while (l > q[i].l) add(--l); while (r < q[i].r) add(++r); while (l < q[i].l) remove(l++); while (r > q[i].r) remove(r--); ans[q[i].id] = total; } for0(i, total_q) cot1(ans[i]); return 0; }
#include <bits/stdc++.h> using namespace std; // TEMPLATE #define pb push_back #define mp make_pair #define ll int #define ld long double #define pii pair<ll, ll> #define piii pair<ll, pii> #define F first #define S second #define newline printf("\n") #define minusone printf("-1\n") #define zeroo printf("0\n") #define scl1(a) scanf("%lld", &a) #define scl2(a, b) scanf("%lld %lld", &a, &b) #define scl3(a, b, c) scanf("%lld %lld %lld", &a, &b, &c) #define prl1(a) printf("%lld\n", a) #define prl2(a, b) printf("%lld %lld\n", a, b) #define ssl1(s) scanf(" %[^\n]", s) #define scd1(a) scanf("%lf", &a) #define scd2(a, b) scanf("%lf %lf", &a, &b) #define prd(a) printf("%lf\n", a) #define prld(a) printf("%Lf\n", a) #define prcase(cs) printf("Case %lld: ", cs) #define cin1(a) cin >> a #define cin2(a, b) cin >> a >> b #define cin3(a, b, c) cin >> a >> b >> c #define cin4(a, b, c, d) cin >> a >> b >> c >> d #define cot1(a) cout << a << "\n" #define cot2(a, b) cout << a << " " << b << "\n" #define cot3(a, b, c) cout << a << " " << b << " " << c << "\n" #define cot4(a, b, c, d) cout << a << " " << b << " " << c << " " << d << "\n" #define cotline cout << "\n" #define cotminus cout << "-1\n" #define cot0 cout << "0\n" #define cotyes cout << "YES\n" #define cotno cout << "NO\n" #define cotcase(cs) cout << "Case " << cs << ": " #define reversed(s) reverse(s.begin(), s.end()) #define asort(s) sort(s.begin(), s.end()) #define dsort(s) sort(s.rbegin(), s.rend()) #define all(s) s.begin(), s.end() #define uniq(s) s.resize(distance(s.begin(), unique(s.begin(), s.end()))) #define found(s, x) (s.find(x) != s.end()) #define for0(i, n) for (i = 0; i < n; i++) #define for1(i, n) for (i = 1; i <= n; i++) #define fora(i, a, b) for (i = a; i <= b; i++) #define forb(i, b, a) for (i = b; i >= a; i--) #define fori(it, s) for (auto it = s.begin(); it != s.end(); it++) #define FR \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define ms(a, x) memset(a, x, sizeof a) #define bitcount(n) __builtin_popcountll(n) // #define pi 3.1415926536 #define pi acos(-1) const ll INF = LLONG_MAX; const ll SZ = 5e5 + 5; const ll mod = 1e9 + 7; struct query { ll l, r, id; } q[SZ]; ll ans[SZ]; ll cnt[SZ]; ll n, total_q, block_size; ll l = 0, r = -1, total = 0; ll a[SZ]; bool cmp(query a, query b) { ll block_a = a.l / block_size; ll block_b = b.l / block_size; if (block_a == block_b) return a.r < b.r; return block_a < block_b; } void add(ll in) { cnt[a[in]]++; if (cnt[a[in]] == 1) total++; } void remove(ll in) { cnt[a[in]]--; if (cnt[a[in]] == 0) total--; } int main() { FR; ll cs = 0, tc = 1, x, y, z, i, j, k, g, p, sum = 0, c = 0, t = 0; // ll a, b, d; string s, s1, s2; cin2(n, total_q); for0(i, n) cin1(a[i]); block_size = 1000; for0(i, total_q) { cin2(x, y); x--, y--; q[i].l = x, q[i].r = y; q[i].id = i; } sort(q, q + total_q, cmp); for0(i, total_q) { while (l > q[i].l) add(--l); while (r < q[i].r) add(++r); while (l < q[i].l) remove(l++); while (r > q[i].r) remove(r--); ans[q[i].id] = total; } for0(i, total_q) cot1(ans[i]); return 0; }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; using namespace std; // template <typename T> // using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; typedef long long ll; typedef long double ld; typedef pair<long long, long long> ii; // typedef complex<long double> point; ll n; const ll s = 700; struct querie { ll l, r, id; bool operator<(const querie &rhs) const { return make_pair(l / s, r) < make_pair(rhs.l / s, rhs.r); } }; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n; ll q; cin >> q; vector<ll> arr(n); for (int z = 0; z < n; z++) { cin >> arr[z]; } vector<querie> que(q); for (int z = 0; z < q; z++) { cin >> que[z].l >> que[z].r; que[z].l--; que[z].r--; que[z].id = z; } sort(que.begin(), que.end()); ll l = 0; ll r = 0; ll count = 1; vector<ll> mapp(n + 1); mapp[arr[0]]++; vector<ll> ans(q); for (int z = 0; z < q; z++) { while (que[z].l < l) { l--; mapp[arr[l]]++; if (mapp[arr[l]] == 1) count++; } while (que[z].l > l) { mapp[arr[l]]--; if (mapp[arr[l]] == 0) count--; l++; } while (que[z].r < r) { mapp[arr[r]]--; if (mapp[arr[r]] == 0) count--; r--; } while (que[z].r > r) { r++; mapp[arr[r]]++; if (mapp[arr[r]] == 1) count++; } ans[que[z].id] = count; } for (ll i : ans) { cout << i << endl; } }
#include <bits/stdc++.h> // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; using namespace std; // template <typename T> // using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; typedef long long ll; typedef long double ld; typedef pair<long long, long long> ii; // typedef complex<long double> point; ll n; const ll s = 700; struct querie { ll l, r, id; bool operator<(const querie &rhs) const { if (l / s != rhs.l / s) return make_pair(l, r) < make_pair(rhs.l, rhs.r); return (l / s & 1) ? (r < rhs.r) : (r > rhs.r); } }; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n; ll q; cin >> q; vector<ll> arr(n); for (int z = 0; z < n; z++) { cin >> arr[z]; } vector<querie> que(q); for (int z = 0; z < q; z++) { cin >> que[z].l >> que[z].r; que[z].l--; que[z].r--; que[z].id = z; } sort(que.begin(), que.end()); ll l = 0; ll r = 0; ll count = 1; vector<ll> mapp(n + 1); mapp[arr[0]]++; vector<ll> ans(q); for (int z = 0; z < q; z++) { while (que[z].l < l) { l--; mapp[arr[l]]++; if (mapp[arr[l]] == 1) count++; } while (que[z].l > l) { mapp[arr[l]]--; if (mapp[arr[l]] == 0) count--; l++; } while (que[z].r < r) { mapp[arr[r]]--; if (mapp[arr[r]] == 0) count--; r--; } while (que[z].r > r) { r++; mapp[arr[r]]++; if (mapp[arr[r]] == 1) count++; } ans[que[z].id] = count; } for (ll i : ans) { cout << i << endl; } }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define ll long long #define ld long double #define pii pair<ll, ll> #define SZ(x) ((int)(x).size()) #define endl "\n" #define vvi vector<vector<int>> #define vvl vector<vector<long long>> ll mod = 1e9 + 7; // const double pi = acos(-1.0); /* ll kmp(string x) { ll n= x.length(); //cout<<x<<endl; vector<ll> lcp(x.length(), 0); for(ll i=1;i<n;i++) { ll j=lcp[i-1]; while(j>0 && x[j]!=x[i]) j=lcp[j-1]; if(x[i]==x[j]) j++; lcp[i]=j; } return lcp[n-1]; } int N = 1000002; int ar[100002]; void sieve() { for(int i=1;i<=N;i++) ar[i] = 1; ar[0] = 0; for(int i=2;i*i<=N;i++) { if(ar[i] && i*i<=N) { for(int j = i*i; j<=N;j+=i) ar[j] = 0; } } } ll modex(ll a,ll b){ if(b<=0){ return 1; } if(b%2==0) { ll x = modex(a, b/2); return ((x*x)%mod); } else return ((a%mod * modex(a, b-1))%mod); } ll c[1010][1010]; ll combina(ll i, ll j){ for (int i=0;i<=1005;i++) for (int j=0;j<=i;j++) { if (j==i||j==0) c[i][j]=1; else c[i][j]=c[i-1][j-1]+c[i-1][j]; c[i][j]%=mod; } return c[i][j]; } void find_fac(int x){ vector<ll> di; for(ll i = 2; i*i <= x; i++) { if(x%i==0){ di.push_back(i); while(x%i==0) x/=i; } } if(x > 1) di.push_back(x); } */ vector<int> ar; // Bit Array vector<int> a; int la[100001]; ll n; struct node { int l, r, in; }; vector<node> qu; int comp(node &a, node &b) { return a.r < b.r; } void update(ll x, ll v) { // cout<<x<<endl; // x += 1; while (x <= (n)) { // cout<<x<<endl; ar[x] += v; x += (x & (-x)); } } ll query(ll x) { // x+=1; ll an = 0; while (x > 0) { an += ar[x]; x = x & (x - 1); } return an; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(12); ll q; cin >> n >> q; a.resize(n); for (ll i = 0; i < n; i++) cin >> a[i]; memset(la, -1, sizeof(la)); ar.assign(n + 1, 0); for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; qu.push_back({l, r, i}); } sort(qu.begin(), qu.end(), comp); ll j = 0; /*for(ll i=0;i<q;i++) cout<<qu[i].l<<" "<<qu[i].r<<" "<<qu[i].in<<endl;*/ vector<int> an(q); for (int i = 0; i < n; i++) { // cout<<a[i]<<" "<<la[a[i]]<<endl; if (la[a[i]] == -1) { la[a[i]] = i + 1; update(la[a[i]], 1); } else { update(la[a[i]], -1); la[a[i]] = i + 1; update(la[a[i]], 1); } while (j < q && qu[j].r == (i + 1)) { int l = qu[j].l, r = qu[j].r, in = qu[j].in; // cout<<in<<" "<<query(r)<<" "<<query(l-1)<<endl; an[in] = query(r) - query(l - 1); j++; } } for (ll i = 0; i < q; i++) cout << an[i] << endl; return 0; }
#include <bits/stdc++.h> using namespace std; #define ll long long #define ld long double #define pii pair<ll, ll> #define SZ(x) ((int)(x).size()) #define endl "\n" #define vvi vector<vector<int>> #define vvl vector<vector<long long>> ll mod = 1e9 + 7; // const double pi = acos(-1.0); /* ll kmp(string x) { ll n= x.length(); //cout<<x<<endl; vector<ll> lcp(x.length(), 0); for(ll i=1;i<n;i++) { ll j=lcp[i-1]; while(j>0 && x[j]!=x[i]) j=lcp[j-1]; if(x[i]==x[j]) j++; lcp[i]=j; } return lcp[n-1]; } int N = 1000002; int ar[100002]; void sieve() { for(int i=1;i<=N;i++) ar[i] = 1; ar[0] = 0; for(int i=2;i*i<=N;i++) { if(ar[i] && i*i<=N) { for(int j = i*i; j<=N;j+=i) ar[j] = 0; } } } ll modex(ll a,ll b){ if(b<=0){ return 1; } if(b%2==0) { ll x = modex(a, b/2); return ((x*x)%mod); } else return ((a%mod * modex(a, b-1))%mod); } ll c[1010][1010]; ll combina(ll i, ll j){ for (int i=0;i<=1005;i++) for (int j=0;j<=i;j++) { if (j==i||j==0) c[i][j]=1; else c[i][j]=c[i-1][j-1]+c[i-1][j]; c[i][j]%=mod; } return c[i][j]; } void find_fac(int x){ vector<ll> di; for(ll i = 2; i*i <= x; i++) { if(x%i==0){ di.push_back(i); while(x%i==0) x/=i; } } if(x > 1) di.push_back(x); } */ vector<int> ar; // Bit Array vector<int> a; int la[500001]; ll n; struct node { int l, r, in; }; vector<node> qu; int comp(node &a, node &b) { return a.r < b.r; } void update(ll x, ll v) { // cout<<x<<endl; // x += 1; while (x <= (n)) { // cout<<x<<endl; ar[x] += v; x += (x & (-x)); } } ll query(ll x) { // x+=1; ll an = 0; while (x > 0) { an += ar[x]; x = x & (x - 1); } return an; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(12); ll q; cin >> n >> q; a.resize(n); for (ll i = 0; i < n; i++) cin >> a[i]; memset(la, -1, sizeof(la)); ar.assign(n + 1, 0); for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; qu.push_back({l, r, i}); } sort(qu.begin(), qu.end(), comp); ll j = 0; /*for(ll i=0;i<q;i++) cout<<qu[i].l<<" "<<qu[i].r<<" "<<qu[i].in<<endl;*/ vector<int> an(q); for (int i = 0; i < n; i++) { // cout<<a[i]<<" "<<la[a[i]]<<endl; if (la[a[i]] == -1) { la[a[i]] = i + 1; update(la[a[i]], 1); } else { update(la[a[i]], -1); la[a[i]] = i + 1; update(la[a[i]], 1); } while (j < q && qu[j].r == (i + 1)) { int l = qu[j].l, r = qu[j].r, in = qu[j].in; // cout<<in<<" "<<query(r)<<" "<<query(l-1)<<endl; an[in] = query(r) - query(l - 1); j++; } } for (ll i = 0; i < q; i++) cout << an[i] << endl; return 0; }
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0
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[200001]; int n, m, a[100001], ans[200001]; int st[5 * 100001], used[1000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[500005]; int n, m, a[500005], ans[500005]; int st[25 * 100001], used[5000005]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
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0
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; const int MAXN = 200010; int A[MAXN], B[MAXN]; vector<int> T[4 * MAXN]; void build(int i, int l, int r) { if (l == r) T[i].push_back(B[r]); else { int m = (l + r) / 2; build(2 * i, l, m); build(2 * i + 1, m + 1, r); merge(T[2 * i].begin(), T[2 * i].end(), T[2 * i + 1].begin(), T[2 * i + 1].end(), back_inserter(T[i])); } } int ask(int i, int l, int r, int ql, int qr) { if (r < ql || qr < l) return 0; if (ql <= l && r <= qr) return lower_bound(T[i].begin(), T[i].end(), ql) - T[i].begin(); int m = (l + r) / 2; return ask(2 * i, l, m, ql, qr) + ask(2 * i + 1, m + 1, r, ql, qr); } void solver() { int N, M; cin >> N >> M; // cin >> N; for (int i = 0; i < N; ++i) cin >> A[i]; memset(B, -1, sizeof(B)); map<int, int> last; for (int i = 0; i < N; ++i) { if (!last.count(A[i])) B[i] = -1; else B[i] = last[A[i]]; last[A[i]] = i; } build(1, 0, N - 1); // cin >> M; while (M-- > 0) { int left, right; cin >> left >> right; cout << ask(1, 0, N - 1, left - 1, right - 1) << '\n'; } } int main() { ios_base ::sync_with_stdio(0); cin.tie(NULL); int t; // cin >> t; t = 1; while (t--) solver(); return 0; }
#include <bits/stdc++.h> using namespace std; const int MAXN = 500001; int A[MAXN], B[MAXN]; vector<int> T[4 * MAXN]; void build(int i, int l, int r) { if (l == r) T[i].push_back(B[r]); else { int m = (l + r) / 2; build(2 * i, l, m); build(2 * i + 1, m + 1, r); merge(T[2 * i].begin(), T[2 * i].end(), T[2 * i + 1].begin(), T[2 * i + 1].end(), back_inserter(T[i])); } } int ask(int i, int l, int r, int ql, int qr) { if (r < ql || qr < l) return 0; if (ql <= l && r <= qr) return lower_bound(T[i].begin(), T[i].end(), ql) - T[i].begin(); int m = (l + r) / 2; return ask(2 * i, l, m, ql, qr) + ask(2 * i + 1, m + 1, r, ql, qr); } void solver() { int N, M; cin >> N >> M; // cin >> N; for (int i = 0; i < N; ++i) cin >> A[i]; memset(B, -1, sizeof(B)); map<int, int> last; for (int i = 0; i < N; ++i) { if (!last.count(A[i])) B[i] = -1; else B[i] = last[A[i]]; last[A[i]] = i; } build(1, 0, N - 1); // cin >> M; while (M-- > 0) { int left, right; cin >> left >> right; cout << ask(1, 0, N - 1, left - 1, right - 1) << '\n'; } } int main() { ios_base ::sync_with_stdio(0); cin.tie(NULL); int t; // cin >> t; t = 1; while (t--) solver(); return 0; }
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0
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; const int maxn = 1e5 + 5; const int inf = 0x3f3f3f3f; int c[maxn], vis[maxn], ans[maxn], tree[maxn]; vector<pair<int, int>> v[maxn]; int n, q; int lowbit(int x) { return x & (-x); } void add(int x, int k) { while (x <= n) { tree[x] += k; x += lowbit(x); } } int sum(int x) { int ans = 0; while (x != 0) { ans += tree[x]; x -= lowbit(x); } return ans; } int main() { cin >> n >> q; for (int i = 1; i <= n; i++) cin >> c[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; v[r].push_back(make_pair(i, l)); } for (int i = 1; i <= n; i++) { if (vis[c[i]] != 0) add(vis[c[i]], -1); vis[c[i]] = i; add(i, 1); for (auto j : v[i]) ans[j.first] = sum(i) - sum(j.second - 1); } for (int i = 1; i <= q; i++) cout << ans[i] << endl; return 0; }
#include <bits/stdc++.h> using namespace std; const int maxn = 5e5 + 5; const int inf = 0x3f3f3f3f; int c[maxn], vis[maxn], ans[maxn], tree[maxn]; vector<pair<int, int>> v[maxn]; int n, q; int lowbit(int x) { return x & (-x); } void add(int x, int k) { while (x <= n) { tree[x] += k; x += lowbit(x); } } int sum(int x) { int ans = 0; while (x != 0) { ans += tree[x]; x -= lowbit(x); } return ans; } int main() { cin >> n >> q; for (int i = 1; i <= n; i++) cin >> c[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; v[r].push_back(make_pair(i, l)); } for (int i = 1; i <= n; i++) { if (vis[c[i]] != 0) add(vis[c[i]], -1); vis[c[i]] = i; add(i, 1); for (auto j : v[i]) ans[j.first] = sum(i) - sum(j.second - 1); } for (int i = 1; i <= q; i++) cout << ans[i] << endl; return 0; }
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0
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define se second #define fr first #define int long long int #define pb push_back #define inf 1e18 #define slld(x) scanf("%lld", &x) #define plld(x) printf("%lld\n", x) #define all(v) v.begin(), v.end() #define CHAL_BAAP_KO_MT_SIKHA \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define mod 1000000007 #define MOD 998244353 #define endl "\n" /* Damn Fast:TheFuckinMastermind while(How to solve the Question?){ Read the Question Again!! } do Practise #Motivation::::0/0 */ const int N = 2e5; vector<int> seg[4 * N + 1]; int a[N + 1], ans[N + 1]; vector<int> merge(vector<int> v1, vector<int> v2) { int i = 0, j = 0; vector<int> v; while (i < v1.size() and j < v2.size()) { if (v1[i] < v2[j]) { v.pb(v1[i]); i++; } else { v.pb(v2[j]); j++; } } while (i < v1.size()) { v.pb(v1[i]); i++; } while (j < v2.size()) { v.pb(v2[j]); j++; } return v; } void build(int l, int r, int idx) { if (l == r) { seg[idx].pb(ans[l]); return; } int mid = (l + r) / 2; build(l, mid, 2 * idx + 1); build(mid + 1, r, 2 * idx + 2); seg[idx] = merge(seg[2 * idx + 1], seg[2 * idx + 2]); } int qury(int l, int r, int ll, int rr, int idx) { if (l > rr or r < ll) return 0; if (ll <= l and rr >= r) { return (lower_bound(seg[idx].begin(), seg[idx].end(), ll) - seg[idx].begin()); } int mid = (l + r) / 2; return qury(l, mid, ll, rr, 2 * idx + 1) + qury(mid + 1, r, ll, rr, 2 * idx + 2); } signed main() { // #ifndef ONLINE_JUDGE // freopen("input.txt","r",stdin); // freopen("out.txt","w",stdout); // #endif CHAL_BAAP_KO_MT_SIKHA int n, q; cin >> n >> q; // vector<int> ans(n+1,0); map<int, int> mp; for (int i = 1; i <= n; i++) { cin >> a[i]; if (mp[a[i]] == 0) { ans[i] = 0; } else { ans[i] = mp[a[i]]; } mp[a[i]] = i; } build(1, n, 0); while (q--) { int l, r; cin >> l >> r; cout << qury(1, n, l, r, 0) << endl; } }
#include <bits/stdc++.h> using namespace std; #define se second #define fr first #define int long long int #define pb push_back #define inf 1e18 #define slld(x) scanf("%lld", &x) #define plld(x) printf("%lld\n", x) #define all(v) v.begin(), v.end() #define CHAL_BAAP_KO_MT_SIKHA \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define mod 1000000007 #define MOD 998244353 #define endl "\n" /* Damn Fast:TheFuckinMastermind while(How to solve the Question?){ Read the Question Again!! } do Practise #Motivation::::0/0 */ const int N = 5e5; vector<int> seg[4 * N + 1]; int a[N + 1], ans[N + 1]; vector<int> merge(vector<int> v1, vector<int> v2) { int i = 0, j = 0; vector<int> v; while (i < v1.size() and j < v2.size()) { if (v1[i] < v2[j]) { v.pb(v1[i]); i++; } else { v.pb(v2[j]); j++; } } while (i < v1.size()) { v.pb(v1[i]); i++; } while (j < v2.size()) { v.pb(v2[j]); j++; } return v; } void build(int l, int r, int idx) { if (l == r) { seg[idx].pb(ans[l]); return; } int mid = (l + r) / 2; build(l, mid, 2 * idx + 1); build(mid + 1, r, 2 * idx + 2); seg[idx] = merge(seg[2 * idx + 1], seg[2 * idx + 2]); } int qury(int l, int r, int ll, int rr, int idx) { if (l > rr or r < ll) return 0; if (ll <= l and rr >= r) { return (lower_bound(seg[idx].begin(), seg[idx].end(), ll) - seg[idx].begin()); } int mid = (l + r) / 2; return qury(l, mid, ll, rr, 2 * idx + 1) + qury(mid + 1, r, ll, rr, 2 * idx + 2); } signed main() { // #ifndef ONLINE_JUDGE // freopen("input.txt","r",stdin); // freopen("out.txt","w",stdout); // #endif CHAL_BAAP_KO_MT_SIKHA int n, q; cin >> n >> q; // vector<int> ans(n+1,0); map<int, int> mp; for (int i = 1; i <= n; i++) { cin >> a[i]; if (mp[a[i]] == 0) { ans[i] = 0; } else { ans[i] = mp[a[i]]; } mp[a[i]] = i; } build(1, n, 0); while (q--) { int l, r; cin >> l >> r; cout << qury(1, n, l, r, 0) << endl; } }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; int maxi = 2e5 + 5, n; vector<int> val(maxi), ano(maxi); vector<vector<int>> node; void init() { long long hei = ceil(log2(n)); hei = 2 * pow(2, hei); node.clear(); node.resize(hei); unordered_map<int, int> tmp; for (int i = n; i; i--) { if (tmp.find(val[i]) == tmp.end()) ano[i] = n + 1; else ano[i] = tmp[val[i]]; tmp[val[i]] = i; } } vector<int> merge(vector<int> &a, vector<int> &b) { vector<int> to_ret; int i = 0, j = 0; while (i < int(a.size()) && j < int(b.size())) if (a[i] < b[j]) to_ret.emplace_back(a[i++]); else to_ret.emplace_back(b[j++]); while (i < int(a.size())) to_ret.emplace_back(a[i++]); while (j < int(b.size())) to_ret.emplace_back(b[j++]); return to_ret; } void build(int cur, int start, int end) { if (start == end) { node[cur].emplace_back(ano[start + 1]); return; } int mid = (start + end) / 2; build(2 * cur, start, mid); build(2 * cur + 1, mid + 1, end); node[cur] = merge(node[2 * cur], node[2 * cur + 1]); } int query(int cur, int l, int r, int rl, int rr, int k) { if (rr < l || r < rl) return 0; if (l >= rl && r <= rr) return node[cur].size() - (upper_bound(node[cur].begin(), node[cur].end(), k) - node[cur].begin()); int mid = (l + r) / 2; return query(2 * cur, l, mid, rl, rr, k) + query(2 * cur + 1, mid + 1, r, rl, rr, k); } int solve2(int l, int r) { r = min(r, n); return query(1, 0, n - 1, l - 1, r - 1, r); } int main() { ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr); int l, r; int q; cin >> n >> q; for (int j = 1; j <= n; j++) cin >> val[j]; init(); build(1, 0, n - 1); while (q--) { cin >> l >> r; cout << solve2(l, r) << "\n"; } }
#include <bits/stdc++.h> using namespace std; int maxi = 5e5 + 5, n; vector<int> val(maxi), ano(maxi); vector<vector<int>> node; void init() { long long hei = ceil(log2(n)); hei = 2 * pow(2, hei); node.clear(); node.resize(hei); unordered_map<int, int> tmp; for (int i = n; i; i--) { if (tmp.find(val[i]) == tmp.end()) ano[i] = n + 1; else ano[i] = tmp[val[i]]; tmp[val[i]] = i; } } vector<int> merge(vector<int> &a, vector<int> &b) { vector<int> to_ret; int i = 0, j = 0; while (i < int(a.size()) && j < int(b.size())) if (a[i] < b[j]) to_ret.emplace_back(a[i++]); else to_ret.emplace_back(b[j++]); while (i < int(a.size())) to_ret.emplace_back(a[i++]); while (j < int(b.size())) to_ret.emplace_back(b[j++]); return to_ret; } void build(int cur, int start, int end) { if (start == end) { node[cur].emplace_back(ano[start + 1]); return; } int mid = (start + end) / 2; build(2 * cur, start, mid); build(2 * cur + 1, mid + 1, end); node[cur] = merge(node[2 * cur], node[2 * cur + 1]); } int query(int cur, int l, int r, int rl, int rr, int k) { if (rr < l || r < rl) return 0; if (l >= rl && r <= rr) return node[cur].size() - (upper_bound(node[cur].begin(), node[cur].end(), k) - node[cur].begin()); int mid = (l + r) / 2; return query(2 * cur, l, mid, rl, rr, k) + query(2 * cur + 1, mid + 1, r, rl, rr, k); } int solve2(int l, int r) { r = min(r, n); return query(1, 0, n - 1, l - 1, r - 1, r); } int main() { ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr); int l, r; int q; cin >> n >> q; for (int j = 1; j <= n; j++) cin >> val[j]; init(); build(1, 0, n - 1); while (q--) { cin >> l >> r; cout << solve2(l, r) << "\n"; } }
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p02599
C++
Runtime Error
#ifndef DEBUG #pragma GCC optimize("Ofast") #endif #include <bits/stdc++.h> using namespace std; #define hfor(var, s, e) \ for (int var = s; int(s) <= var && var < int(e); ++var) // half-opened range #define hfori(var, s, e) \ for (int var = e - 1; int(s) <= var && var < int(e); --var) // inversion #define hforo(var, s, e) \ int var = s; \ for (; int(s) <= var && var < int(e); ++var) // out declaration #define hforoi(var, s, e) \ int var = e - 1; \ for (; int(s) <= var && var < int(e); --var) #define cfor(var, s, e) hfor(var, s, (e) + 1) // closed range #define cfori(var, s, e) hfori(var, s, (e) + 1) #define cforo(var, s, e) hforo(var, s, (e) + 1) #define cforoi(var, s, e) hforoi(var, s, (e) + 1) #define rep(x) hfor(repi, 0, x) #define all(x) x.begin(), x.end() #define sum_in(s, e) accumulate(s, e, 0ll) #define mri(it) make_reverse_iterator(it) //*mri(it) == *prev(it) #define gcd __gcd template <typename C, typename RI> RI rerase(C &c, RI ri) { return next(mri(c.erase(prev(ri.base())))); } template <typename T> constexpr T inf() { return numeric_limits<T>::max() / 2; } using f64 = double; using i64 = long long; using u64 = unsigned long long; const f64 pi = acos(-1), eps = 1e-12; const int prime = 998244353; // 1073741783 int(2e9+11) int(1e9+9) const int dirs[4][2] = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}}; // r, cw const int mod = int(1e9 + 7); auto _dummy = (ios::sync_with_stdio(0), cin.tie(0), cout.tie(0), (cout << fixed << setprecision(11)), srand((int)time(0)), 0); #define endl '\n' // not interactive? // #define int i64//overflow? struct Q { int s, e, i; }; const int N = 5e5; signed main() { int n, m; cin >> n >> m; int a[N]; hfor(i, 0, n) cin >> a[i]; int bsz = 300; vector<Q> v[1000]; hfor(i, 0, m) { int s, e; cin >> s >> e; s--; v[s / bsz].push_back({s, e, i}); } hfor(i, 0, 1000) sort(all(v[i]), [](auto a, auto b) { return a.e < b.e; }); vector<pair<int, int>> ans; hfor(i, 0, 1000) { if (v[i].empty()) continue; int buf[N + 1] = { 0, }; int cnt = 0; int normalized_s = v[i].front().s / bsz * bsz; int j = normalized_s; for (auto k : v[i]) { while (j < k.e) cnt += !buf[a[j++]]++; hfor(l, normalized_s, k.s) cnt -= !--buf[a[l]]; ans.push_back({k.i, cnt}); hfor(l, normalized_s, k.s) cnt += !buf[a[l]]++; } } sort(all(ans)); for (auto i : ans) cout << i.second << endl; return 0; }
#ifndef DEBUG #pragma GCC optimize("Ofast") #endif #include <bits/stdc++.h> using namespace std; #define hfor(var, s, e) \ for (int var = s; int(s) <= var && var < int(e); ++var) // half-opened range #define hfori(var, s, e) \ for (int var = e - 1; int(s) <= var && var < int(e); --var) // inversion #define hforo(var, s, e) \ int var = s; \ for (; int(s) <= var && var < int(e); ++var) // out declaration #define hforoi(var, s, e) \ int var = e - 1; \ for (; int(s) <= var && var < int(e); --var) #define cfor(var, s, e) hfor(var, s, (e) + 1) // closed range #define cfori(var, s, e) hfori(var, s, (e) + 1) #define cforo(var, s, e) hforo(var, s, (e) + 1) #define cforoi(var, s, e) hforoi(var, s, (e) + 1) #define rep(x) hfor(repi, 0, x) #define all(x) x.begin(), x.end() #define sum_in(s, e) accumulate(s, e, 0ll) #define mri(it) make_reverse_iterator(it) //*mri(it) == *prev(it) #define gcd __gcd template <typename C, typename RI> RI rerase(C &c, RI ri) { return next(mri(c.erase(prev(ri.base())))); } template <typename T> constexpr T inf() { return numeric_limits<T>::max() / 2; } using f64 = double; using i64 = long long; using u64 = unsigned long long; const f64 pi = acos(-1), eps = 1e-12; const int prime = 998244353; // 1073741783 int(2e9+11) int(1e9+9) const int dirs[4][2] = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}}; // r, cw const int mod = int(1e9 + 7); auto _dummy = (ios::sync_with_stdio(0), cin.tie(0), cout.tie(0), (cout << fixed << setprecision(11)), srand((int)time(0)), 0); #define endl '\n' // not interactive? // #define int i64//overflow? struct Q { int s, e, i; }; const int N = 5e5; signed main() { int n, m; cin >> n >> m; int a[N]; hfor(i, 0, n) cin >> a[i]; int bsz = 1000; vector<Q> v[1000]; hfor(i, 0, m) { int s, e; cin >> s >> e; s--; v[s / bsz].push_back({s, e, i}); } hfor(i, 0, 1000) sort(all(v[i]), [](auto a, auto b) { return a.e < b.e; }); vector<pair<int, int>> ans; hfor(i, 0, 1000) { if (v[i].empty()) continue; int buf[N + 1] = { 0, }; int cnt = 0; int normalized_s = v[i].front().s / bsz * bsz; int j = normalized_s; for (auto k : v[i]) { while (j < k.e) cnt += !buf[a[j++]]++; hfor(l, normalized_s, k.s) cnt -= !--buf[a[l]]; ans.push_back({k.i, cnt}); hfor(l, normalized_s, k.s) cnt += !buf[a[l]]++; } } sort(all(ans)); for (auto i : ans) cout << i.second << endl; return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 5; int bit[N], p[N], ans[N], a[N]; pair<int, pair<int, int>> pr[N]; void update(int idx, int val) { while (idx < N) { bit[idx] += val; idx += (idx & -idx); } } int read(int idx) { int sum = 0; while (idx > 0) { sum += bit[idx]; idx -= (idx & -idx); } return sum; } int main() { int n, q, x; cin >> n >> q; for (int i = 1; i <= n; ++i) cin >> a[i]; for (int i = 0; i < q; ++i) { cin >> pr[i].second.first >> pr[i].first; pr[i].second.second = i; } sort(pr, pr + q); memset(p, -1, sizeof(p)); memset(bit, 0, sizeof(bit)); x = 0; for (int i = 1; i <= n; ++i) { if (p[a[i]] != -1) update(p[a[i]], -1); p[a[i]] = i; update(i, 1); while (x < q and pr[x].first == i) { ans[pr[x].second.second] = read(pr[x].first) - read(pr[x].second.first - 1); x++; } } for (int i = 0; i < q; ++i) cout << ans[i] << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; const int N = 5e5 + 5; int bit[N], p[N], ans[N], a[N]; pair<int, pair<int, int>> pr[N]; void update(int idx, int val) { while (idx < N) { bit[idx] += val; idx += (idx & -idx); } } int read(int idx) { int sum = 0; while (idx > 0) { sum += bit[idx]; idx -= (idx & -idx); } return sum; } int main() { int n, q, x; cin >> n >> q; for (int i = 1; i <= n; ++i) cin >> a[i]; for (int i = 0; i < q; ++i) { cin >> pr[i].second.first >> pr[i].first; pr[i].second.second = i; } sort(pr, pr + q); memset(p, -1, sizeof(p)); memset(bit, 0, sizeof(bit)); x = 0; for (int i = 1; i <= n; ++i) { if (p[a[i]] != -1) update(p[a[i]], -1); p[a[i]] = i; update(i, 1); while (x < q and pr[x].first == i) { ans[pr[x].second.second] = read(pr[x].first) - read(pr[x].second.first - 1); x++; } } for (int i = 0; i < q; ++i) cout << ans[i] << "\n"; return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; /// ----------------------------- (Debug) ------------------------------ #define sim template <class c #define ris return *this #define dor > debug &operator<< #define eni(x) \ sim > typename enable_if<sizeof dud<c>(0) x 1, debug &>::type operator<<( \ c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c *x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifndef ONLINE_JUDGE eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair<b, c> d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c &) { ris; } #endif } ; vector<char *> tokenizer(const char *args) { char *token = new char[111]; strcpy(token, args); token = strtok(token, ", "); vector<char *> v({token}); while (token = strtok(NULL, ", ")) v.push_back(token); return reverse(v.begin(), v.end()), v; } void debugg(vector<char *> args) { cerr << "\b\b "; } template <typename Head, typename... Tail> void debugg(vector<char *> args, Head H, Tail... T) { debug() << " [" << args.back() << ": " << H << "] "; args.pop_back(); debugg(args, T...); } #define harg(...) #__VA_ARGS__ #ifndef ONLINE_JUDGE #define dbg(...) \ { \ debugg(tokenizer(harg(__VA_ARGS__, \b\t-- > Line)), __VA_ARGS__, \ __LINE__); \ cerr << endl; \ } #else #define dbg(...) \ {} #endif /// ----------------------------------------------------------------------- typedef long long ll; typedef vector<int> vi; typedef pair<int, int> pi; typedef vector<pi> vpi; #define IOS \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define F first #define S second #define PB push_back #define EB emplace_back #define MP make_pair #define print(x) cout << x << "\n"; #define REP(i, a, b) for (i = a; i <= b; i++) #define RAP(i, a, b) for (i = a; i >= b; i--) #define spa << " " << #define all(x) (x).begin(), (x).end() #define sz(x) (int)x.size() ll mod = 1e9 + 7; const int MX = 0x3f3f3f3f; int seg[int(1e6) + 1]; int c[int(5e5) + 1], last[int(5e5) + 1], ans[int(5e5) + 5]; void update(int v, int l, int r, int idx, int num) { if (r < idx || l > idx) return; else if (l == r) seg[v] += num; else { update(2 * v, l, (l + r) >> 1, idx, num); update(2 * v + 1, ((l + r) >> 1) + 1, r, idx, num); seg[v] = seg[2 * v] + seg[2 * v + 1]; } } int query(int v, int i, int j, int l, int r) { if (j < l || i > r) return 0; else if (l >= i && r <= j) return seg[v]; else { return query(2 * v, i, j, l, (l + r) >> 1) + query(2 * v + 1, i, j, (l + r >> 1) + 1, r); } } int main() { memset(last, -1, sizeof(last)); int n, q, i; cin >> n >> q; REP(i, 0, n - 1) cin >> c[i]; vector<pair<pair<int, int>, int>> que(q); REP(i, 0, q - 1) { cin >> que[i].F.S >> que[i].F.F; que[i].S = i; } sort(all(que)); int j = 0; dbg(que); REP(i, 0, n - 1) { if (last[c[i]] != -1) { update(1, 0, n - 1, last[c[i]], -1); } last[c[i]] = i; update(1, 0, n - 1, i, 1); dbg(seg[1]); while (j < q && que[j].F.F == i + 1) { dbg(que[j].S); ans[que[j].S] = query(1, que[j].F.S - 1, que[j].F.F - 1, 0, n - 1); j++; } } dbg(ans); REP(i, 0, q - 1) cout << ans[i] << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; /// ----------------------------- (Debug) ------------------------------ #define sim template <class c #define ris return *this #define dor > debug &operator<< #define eni(x) \ sim > typename enable_if<sizeof dud<c>(0) x 1, debug &>::type operator<<( \ c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c *x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifndef ONLINE_JUDGE eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair<b, c> d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c &) { ris; } #endif } ; vector<char *> tokenizer(const char *args) { char *token = new char[111]; strcpy(token, args); token = strtok(token, ", "); vector<char *> v({token}); while (token = strtok(NULL, ", ")) v.push_back(token); return reverse(v.begin(), v.end()), v; } void debugg(vector<char *> args) { cerr << "\b\b "; } template <typename Head, typename... Tail> void debugg(vector<char *> args, Head H, Tail... T) { debug() << " [" << args.back() << ": " << H << "] "; args.pop_back(); debugg(args, T...); } #define harg(...) #__VA_ARGS__ #ifndef ONLINE_JUDGE #define dbg(...) \ { \ debugg(tokenizer(harg(__VA_ARGS__, \b\t-- > Line)), __VA_ARGS__, \ __LINE__); \ cerr << endl; \ } #else #define dbg(...) \ {} #endif /// ----------------------------------------------------------------------- typedef long long ll; typedef vector<int> vi; typedef pair<int, int> pi; typedef vector<pi> vpi; #define IOS \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define F first #define S second #define PB push_back #define EB emplace_back #define MP make_pair #define print(x) cout << x << "\n"; #define REP(i, a, b) for (i = a; i <= b; i++) #define RAP(i, a, b) for (i = a; i >= b; i--) #define spa << " " << #define all(x) (x).begin(), (x).end() #define sz(x) (int)x.size() ll mod = 1e9 + 7; const int MX = 0x3f3f3f3f; int seg[int(2e6) + 1]; int c[int(5e5) + 1], last[int(5e5) + 5], ans[int(5e5) + 5]; void update(int v, int l, int r, int idx, int num) { if (r < idx || l > idx) return; else if (l == r) seg[v] += num; else { update(2 * v, l, (l + r) >> 1, idx, num); update(2 * v + 1, ((l + r) >> 1) + 1, r, idx, num); seg[v] = seg[2 * v] + seg[2 * v + 1]; } } int query(int v, int i, int j, int l, int r) { if (j < l || i > r) return 0; else if (l >= i && r <= j) return seg[v]; else { return query(2 * v, i, j, l, (l + r) >> 1) + query(2 * v + 1, i, j, (l + r >> 1) + 1, r); } } int main() { memset(last, -1, sizeof(last)); int n, q, i; cin >> n >> q; REP(i, 0, n - 1) cin >> c[i]; vector<pair<pair<int, int>, int>> que(q); REP(i, 0, q - 1) { cin >> que[i].F.S >> que[i].F.F; que[i].S = i; } sort(all(que)); int j = 0; dbg(que); REP(i, 0, n - 1) { if (last[c[i]] != -1) { update(1, 0, n - 1, last[c[i]], -1); } last[c[i]] = i; update(1, 0, n - 1, i, 1); dbg(seg[1]); while (j < q && que[j].F.F == i + 1) { dbg(que[j].S); ans[que[j].S] = query(1, que[j].F.S - 1, que[j].F.F - 1, 0, n - 1); j++; } } dbg(ans); REP(i, 0, q - 1) cout << ans[i] << "\n"; return 0; }
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[que: [((3, 1), 0), ((3, 3), 2), ((4, 2), 1)]] [ -->Line: 94]  [seg[1]: 1] [ -->Line: 101]  [seg[1]: 2] [ -->Line: 101]  [seg[1]: 2] [ -->Line: 101]  [que[j].second: 0] [ -->Line: 103]  [que[j].second: 2] [ -->Line: 103]  [seg[1]: 3] [ -->Line: 101]  [que[j].second: 1] [ -->Line: 103]  [ans: 0x5584fadc7600] [ -->Line: 108] 
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define all(x) x.begin(), x.end() #define sz(x) (int)x.size() #define pb push_back #define endl '\n' #define snd second #define fst first #define fastio cin.tie(NULL), cout.sync_with_stdio(true) typedef long long int ll; typedef unsigned long long int ull; typedef vector<int> vi; typedef pair<ll, int> ii; typedef pair<ii, int> iii; const int mod = 1e9 + 7; const int N = 100005; struct query { int i, l, r, ans; }; void solve() { int n, qq; cin >> n >> qq; vector<int> a(n), see(n + 1); vector<query> q(qq); for (int i = 0; i < n; i++) cin >> a[i]; for (int i = 0; i < qq; i++) { cin >> q[i].l >> q[i].r; q[i].i = i; q[i].l--, q[i].r--; } int len = sqrt(n) + 1; sort(q.begin(), q.end(), [&len](query &a, query &b) { if (a.l != b.l) return a.l < b.l; return a.r < b.r; }); int l = 0, r = -1, cnt = 0; for (auto &q : q) { while (l < q.l) { see[a[l]]--; if (see[a[l]] == 0) cnt--; l++; } while (l > q.l) { l--; if (see[a[l]] == 0) cnt++; see[a[l]]++; } while (r < q.r) { r++; if (see[a[r]] == 0) cnt++; see[a[r]]++; } while (r > q.r) { see[a[r]]--; if (see[a[r]] == 0) cnt--; r--; } q.ans = cnt; } sort(q.begin(), q.end(), [](query &a, query &b) { return a.i < b.i; }); for (int i = 0; i < qq; i++) cout << q[i].ans << '\n'; } int main() { fastio; int t = 1; // cin >> t; while (t--) solve(); return 0; }
#include <bits/stdc++.h> using namespace std; #define all(x) x.begin(), x.end() #define sz(x) (int)x.size() #define pb push_back #define endl '\n' #define snd second #define fst first #define fastio cin.tie(NULL), cout.sync_with_stdio(true) typedef long long int ll; typedef unsigned long long int ull; typedef vector<int> vi; typedef pair<ll, int> ii; typedef pair<ii, int> iii; const int mod = 1e9 + 7; const int N = 100005; struct query { int i, l, r, ans; }; void solve() { int n, qq; cin >> n >> qq; vector<int> a(n), see(n + 1); vector<query> q(qq); for (int i = 0; i < n; i++) cin >> a[i]; for (int i = 0; i < qq; i++) { cin >> q[i].l >> q[i].r; q[i].i = i; q[i].l--, q[i].r--; } int len = sqrt(n) + 1; sort(q.begin(), q.end(), [&len](query &a, query &b) { // sqrt decomp. trick (mo's) if (a.l / len != b.l / len) return a.l / len < b.l / len; return a.r < b.r; }); int l = 0, r = -1, cnt = 0; for (auto &q : q) { while (l < q.l) { see[a[l]]--; if (see[a[l]] == 0) cnt--; l++; } while (l > q.l) { l--; if (see[a[l]] == 0) cnt++; see[a[l]]++; } while (r < q.r) { r++; if (see[a[r]] == 0) cnt++; see[a[r]]++; } while (r > q.r) { see[a[r]]--; if (see[a[r]] == 0) cnt--; r--; } q.ans = cnt; } sort(q.begin(), q.end(), [](query &a, query &b) { return a.i < b.i; }); for (int i = 0; i < qq; i++) cout << q[i].ans << '\n'; } int main() { fastio; int t = 1; // cin >> t; while (t--) solve(); return 0; }
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TLE
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[200001]; int n, m, a[100001], ans[200001]; int st[5 * 100001], used[1000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; const int N = 500009; pair<int, pair<int, int>> q[N]; int n, m, a[N], ans[N]; int st[5 * N], used[5 * N]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
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p02599
C++
Time Limit Exceeded
#include <algorithm> #include <climits> #include <cmath> #include <cstring> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <stack> #include <string> #include <utility> #include <vector> using namespace std; int c[500000]; int sqrtN = 710; struct SqrtDecomposition { int N, K; vector<long long> data; vector<long long> bucketSum; SqrtDecomposition(int n) { N = n; K = (N + sqrtN - 1) / sqrtN; data.assign(N, 0); bucketSum.assign(K, 0); } void add(int x, int y) { data[x] += y; bucketSum[x / sqrtN] += y; } long long getSum(int x, int y) { long long ans = 0; if (y - x < sqrtN) { for (int i = x; i < y; i++) { ans += data[i]; } return ans; } for (int i = x / sqrtN + 1; i < y / sqrtN; i++) { ans += bucketSum[i]; } for (int i = x; i < (x / sqrtN + 1) * sqrtN; i++) { ans += data[i]; } for (int i = y / sqrtN * sqrtN; i < y; i++) { ans += data[i]; } return ans; } }; int ans[500000]; int last_appeared[500001]; pair<pair<int, int>, int> RL_ind[500000]; int main() { int N; int Q; cin >> N >> Q; int max_c = 0; for (int i = 0; i < N; i++) { cin >> c[i]; max_c = max(max_c, c[i]); } for (int i = 0; i < Q; i++) { int l; int r; cin >> l >> r; RL_ind[i] = make_pair(make_pair(r, l), i); } for (int i = 0; i <= max_c; i++) { last_appeared[i] = -1; } sort(RL_ind, RL_ind + Q); SqrtDecomposition sq(N); int last_R = 0; for (int i = 0; i < Q; i++) { int cur_L = RL_ind[i].first.second; int cur_R = RL_ind[i].first.first; int ans_ind = RL_ind[i].second; for (int j = last_R; j < cur_R; j++) { if (last_appeared[c[j]] >= 0) { sq.add(last_appeared[c[j]], -1); } last_appeared[c[j]] = j; sq.add(j, 1); } ans[ans_ind] = sq.getSum(cur_L - 1, cur_R); } for (int i = 0; i < Q; i++) { cout << ans[i] << endl; } return 0; }
#include <algorithm> #include <climits> #include <cmath> #include <cstring> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <stack> #include <string> #include <utility> #include <vector> using namespace std; int c[500000]; int sqrtN = 710; struct SqrtDecomposition { int N, K; vector<long long> data; vector<long long> bucketSum; SqrtDecomposition(int n) { N = n; K = (N + sqrtN - 1) / sqrtN; data.assign(N, 0); bucketSum.assign(K, 0); } void add(int x, int y) { data[x] += y; bucketSum[x / sqrtN] += y; } long long getSum(int x, int y) { long long ans = 0; if (y - x < sqrtN) { for (int i = x; i < y; i++) { ans += data[i]; } return ans; } for (int i = x / sqrtN + 1; i < y / sqrtN; i++) { ans += bucketSum[i]; } for (int i = x; i < (x / sqrtN + 1) * sqrtN; i++) { ans += data[i]; } for (int i = y / sqrtN * sqrtN; i < y; i++) { ans += data[i]; } return ans; } }; int ans[500000]; int last_appeared[500001]; pair<pair<int, int>, int> RL_ind[500000]; int main() { int N; int Q; cin >> N >> Q; int max_c = 0; for (int i = 0; i < N; i++) { cin >> c[i]; max_c = max(max_c, c[i]); } for (int i = 0; i < Q; i++) { int l; int r; cin >> l >> r; RL_ind[i] = make_pair(make_pair(r, l), i); } for (int i = 0; i <= max_c; i++) { last_appeared[i] = -1; } sort(RL_ind, RL_ind + Q); SqrtDecomposition sq(N); int last_R = 0; for (int i = 0; i < Q; i++) { int cur_L = RL_ind[i].first.second; int cur_R = RL_ind[i].first.first; int ans_ind = RL_ind[i].second; for (int j = last_R; j < cur_R; j++) { if (last_appeared[c[j]] >= 0) { sq.add(last_appeared[c[j]], -1); } last_appeared[c[j]] = j; sq.add(j, 1); } ans[ans_ind] = sq.getSum(cur_L - 1, cur_R); last_R = cur_R; } for (int i = 0; i < Q; i++) { cout << ans[i] << endl; } return 0; }
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TLE
p02599
C++
Runtime Error
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int L = 8; ll rec(int a, int b, int ord) { // debug(imie(a), imie(b), imie(ord)); if (ord == 0) return 0; int edge = 1 << ord; assert(a >= 0 && a < edge); assert(b >= 0 && b < edge); int half = edge / 2; ll siz = 1ll << (2 * (ord - 1)); if (a < half && b < half) return rec(b, a, ord - 1); if (a < half && b >= half) return siz + rec(a, b - half, ord - 1); if (a >= half && b >= half) return 2 * siz + rec(a - half, b - half, ord - 1); if (a >= half && b < half) return 3 * siz + rec(half - b - 1, half - (a - half) - 1, ord - 1); assert(false); } ll cast(tuple<int, int, int> a) { auto [first, second, _] = a; swap(first, second); return rec(first, second, 20); } bool cmp(tuple<int, int, int, ll> a, tuple<int, int, int, ll> b) { return get<3>(a) < get<3>(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } ll hilbert(int a, int b) { // debug(imie(a), imie(b)); return rec(a, b, 20); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int, ll>> qs(q); srand(TIME); int off1 = rand() % n, off2 = rand() % n; REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i, rec(l + off1, r + off2, 19)}; } sort(ALL(qs), cmp); auto [l, r, q0, _] = qs[0]; debug(imie(qs)); for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _, __] = qs[i - 1]; auto [l, r, ind, __] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int L = 8; ll rec(int a, int b, int ord) { // debug(imie(a), imie(b), imie(ord)); if (ord == 0) return 0; int edge = 1 << ord; assert(a >= 0 && a < edge); assert(b >= 0 && b < edge); int half = edge / 2; ll siz = 1ll << (2 * (ord - 1)); if (a < half && b < half) return rec(b, a, ord - 1); if (a < half && b >= half) return siz + rec(a, b - half, ord - 1); if (a >= half && b >= half) return 2 * siz + rec(a - half, b - half, ord - 1); if (a >= half && b < half) return 3 * siz + rec(half - b - 1, half - (a - half) - 1, ord - 1); assert(false); } ll cast(tuple<int, int, int> a) { auto [first, second, _] = a; swap(first, second); return rec(first, second, 20); } bool cmp(tuple<int, int, int, ll> a, tuple<int, int, int, ll> b) { return get<3>(a) < get<3>(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } ll hilbert(int a, int b) { // debug(imie(a), imie(b)); return rec(a, b, 20); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int, ll>> qs(q); srand(TIME); int off1 = rand() % n, off2 = rand() % n; REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i, rec(l + off1, r + off2, 20)}; } sort(ALL(qs), cmp); auto [l, r, q0, _] = qs[0]; debug(imie(qs)); for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _, __] = qs[i - 1]; auto [l, r, ind, __] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
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p02599
C++
Time Limit Exceeded
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int L = 8; ll rec(int a, int b, int ord) { // debug(imie(a), imie(b), imie(ord)); if (ord == 0) return 0; int edge = 1 << ord; assert(a >= 0 && a < edge); assert(b >= 0 && b < edge); int half = edge / 2; ll siz = 1ll << (2 * (ord - 1)); if (a < half && b < half) return rec(b, a, ord - 1); if (a < half && b >= half) return siz + rec(a, b - half, ord - 1); if (a >= half && b >= half) return 2 * siz + rec(a - half, b - half, ord - 1); if (a >= half && b < half) return 3 * siz + rec(half - b - 1, half - (a - half) - 1, ord - 1); assert(false); } ll cast(tuple<int, int, int> a) { auto [first, second, _] = a; swap(first, second); return rec(first, second, 20); } bool cmp(tuple<int, int, int, ll> a, tuple<int, int, int, ll> b) { return get<3>(a) < get<3>(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } ll hilbert(int a, int b) { // debug(imie(a), imie(b)); return rec(a, b, 19); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int, int>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i, rec(l, r, 19)}; } sort(ALL(qs), cmp); auto [l, r, q0, _] = qs[0]; debug(imie(qs)); for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _, __] = qs[i - 1]; auto [l, r, ind, __] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int L = 8; ll rec(int a, int b, int ord) { // debug(imie(a), imie(b), imie(ord)); if (ord == 0) return 0; int edge = 1 << ord; assert(a >= 0 && a < edge); assert(b >= 0 && b < edge); int half = edge / 2; ll siz = 1ll << (2 * (ord - 1)); if (a < half && b < half) return rec(b, a, ord - 1); if (a < half && b >= half) return siz + rec(a, b - half, ord - 1); if (a >= half && b >= half) return 2 * siz + rec(a - half, b - half, ord - 1); if (a >= half && b < half) return 3 * siz + rec(half - b - 1, half - (a - half) - 1, ord - 1); assert(false); } ll cast(tuple<int, int, int> a) { auto [first, second, _] = a; swap(first, second); return rec(first, second, 20); } bool cmp(tuple<int, int, int, ll> a, tuple<int, int, int, ll> b) { return get<3>(a) < get<3>(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } ll hilbert(int a, int b) { // debug(imie(a), imie(b)); return rec(a, b, 19); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int, ll>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i, rec(l, r, 19)}; } sort(ALL(qs), cmp); auto [l, r, q0, _] = qs[0]; debug(imie(qs)); for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _, __] = qs[i - 1]; auto [l, r, ind, __] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
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p02599
C++
Time Limit Exceeded
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int ROOT = 500; const int L = 8; tuple<int, int, int> cast(tuple<int, int, int> a) { auto [first, second, _] = a; return {first / ROOT, (first / ROOT) & 1 ? second : second, first}; } bool cmp(tuple<int, int, int> a, tuple<int, int, int> b) { return cast(a) < cast(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i}; } sort(ALL(qs), cmp); if (false) REP(_, 3) { REP(i, q - 3) if (dist(qs[i], qs[i + 1]) + dist(qs[i + 2], qs[i + 3]) >= dist(qs[i], qs[i + 2]) + dist(qs[i + 1], qs[i + 3])) swap(qs[i + 1], qs[i + 2]); } auto [l, r, q0] = qs[0]; for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _] = qs[i - 1]; auto [l, r, ind] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int ROOT = 500; const int L = 8; tuple<int, int, int> cast(tuple<int, int, int> a) { auto [first, second, _] = a; swap(first, second); return {first / ROOT, (first / ROOT) & 1 ? second : -second, first}; } bool cmp(tuple<int, int, int> a, tuple<int, int, int> b) { return cast(a) < cast(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i}; } sort(ALL(qs), cmp); if (false) REP(_, 3) { REP(i, q - 3) if (dist(qs[i], qs[i + 1]) + dist(qs[i + 2], qs[i + 3]) >= dist(qs[i], qs[i + 2]) + dist(qs[i + 1], qs[i + 3])) swap(qs[i + 1], qs[i + 2]); } auto [l, r, q0] = qs[0]; for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _] = qs[i - 1]; auto [l, r, ind] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
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p02599
C++
Time Limit Exceeded
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int ROOT = 270; const int L = 8; tuple<int, int, int> cast(tuple<int, int, int> a) { auto [first, second, _] = a; return {first / ROOT, (first / ROOT) & 1 ? second : -second, first}; } bool cmp(tuple<int, int, int> a, tuple<int, int, int> b) { return cast(a) < cast(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i}; } sort(ALL(qs), cmp); REP(_, 3) { REP(i, q - 3) if (dist(qs[i], qs[i + 1]) + dist(qs[i + 2], qs[i + 3]) >= dist(qs[i], qs[i + 2]) + dist(qs[i + 1], qs[i + 3])) swap(qs[i + 1], qs[i + 2]); } auto [l, r, q0] = qs[0]; for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _] = qs[i - 1]; auto [l, r, ind] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
// Konrad Paluszek,University of Warsaw(former XIV LO Staszic) // #STAY AT HOME #ifndef LOCAL #pragma GCC optimize("O3") #endif #define TIME (chrono::steady_clock::now().time_since_epoch().count()) #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define xfm(a, b) a##b #define xwb(a, b) xfm(a, b) #define _ xwb(nvj, __LINE__) #define __ xwb(kjy, __LINE__) #define ___ xwb(cjm, __LINE__) #define REP(i, n) for (urs(n) i = 0; i < (n); ++i) #define UNTIL(t) while (clock() < (t)*CLOCKS_PER_SEC) #define PER(r...) for (bool _ = 1; _ || next_permutation(r); _ = false) #define ALL(r) (r).begin(), (r).end() #define RALL(r) (r).rbegin(), (r).rend() #define FS(r) r.first, r.second #define SF(r) r.second, r.first #define M0(r) memset(r, 0, sizeof(r)) #define sim template <class c #define ros return o #define rans return ans #define forbits(i, m) \ if (m) \ for (urs(m) i = ctz(m), i##nvj = m; i##nvj; \ i##nvj ^= ((urs(m))1 << i), i = ctz(i##nvj)) #define fordbits(i, m) \ if (m) \ for (urs(m) i = 8 * sizeof(m) - clz(m) - 1, i##nxd = m; i##nxd; \ i##nxd ^= ((urs(m))1 << i), i = 8 * sizeof(m) - clz(i##nxd) - 1) #define ksets(t, m, k, n) \ for (t m = (((t)1 << (k)) - 1); m < ((t)1 << (n)); m = nux(m)) #define urs(r...) typename decay<decltype(r)>::type #define hur(f, g, r) \ sim > int f(c a) { \ if (sizeof(c) == 16) \ return r; \ if (sizeof(c) == 8) \ return g##ll(a); \ return g(a); \ } #define pwq(t, i) \ int clz(t x) { return clz<int>(x) - i; } #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" using namespace __gnu_pbds; using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using vi = vector<int>; using vll = vector<ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; using vpii = vector<pii>; using spii = set<pii>; using mii = map<int, int>; using unt = unsigned int; sim > using min_queue = priority_queue<c, vector<c>, greater<c>>; sim, class b, class cmp = less<c> > using ordered_map = tree<c, b, cmp, rb_tree_tag, tree_order_statistics_node_update>; sim, class cmp = less < c >> using ordered_set = ordered_map<c, null_type, cmp>; hur(popc, __builtin_popcount, popc<ull>(a) + popc<ull>(a >> 64)) hur(ctz, __builtin_ctz, (ull)a ? ctz<ull>(a) : 64 + ctz<ull>(a >> 64)) hur(clz, __builtin_clz, a >> 64 ? clz<ull>(a >> 64) : 64 + clz<ull>(a)) pwq(short, 16) pwq(uint16_t, 16) pwq(char, 24) pwq(int8_t, 24) pwq(uint8_t, 24) sim, class N > bool mini(c &o, const N &h) { if (o > h) ros = h, 1; return 0; } sim, class N > bool maxi(c &o, const N &h) { if (o < h) ros = h, 1; return 0; } sim, class n > using gyv = c; #if defined(LOCAL) // || defined(LOCAL2) #include </home/kjp/headers/debuglib.hpp> #else #define loc(...) #define onl(r...) r #define debug(...) #define print_stack(...) #define mark_stack(...) #define set_pre(...) #define reg_it(...) #define def_op(...) \ struct _ {}; #if !defined(LOCAL) && !defined(LOCAL2) #define exit my_exit void my_exit(int x) { fflush(stdout); _Exit(x); } #endif #endif #define next nexT #define prev preV #define tree trEE #define left lefT #define right righT #define div diV #define y1 y_1 #define pow \ do \ not use cmath pow unless you know what you are doing ull mix(ull o) { o += 0x9e3779b97f4a7c15; o = (o ^ (o >> 30)) * 0xbf58476d1ce4e5b9; o = (o ^ (o >> 27)) * 0x94d049bb133111eb; ros ^ (o >> 31); } ull SALT = 0x7a14a4b0881ebf9, tqu = 0x7a14a4b0881ebf9; ull my_rand() { return tqu = mix(tqu); } void my_srand(ull x) { SALT = tqu = x; } const int inf = 1023400000; const ll llinf = 1234567890000000000ll; ll fix(ll o, ll m) { o %= m; if (o < 0) o += m; ros; } #define rand my_rand #define srand my_srand #define random_shuffle(r...) \ random_shuffle(r, [](int _) { return my_rand() % _; }) sim > inline c nux(c m) { if (!m) return numeric_limits<c>::max(); c A = m & -m; c B = ~((A - 1) ^ m); c C = B & -B; c D = (C >> (1 + ctz(A))) - 1; return C | (m & ~(C - 1)) | D; } __attribute__((no_sanitize_undefined)) ll mul(ll a, ll b, ll m) { ll q = (ll)(a * (ld)b / m); ll o = a * b - q * m; o %= m; if (o < 0) o += m; ros; } sim > void unq(c &x) { x.resize(unique(ALL(x)) - x.begin()); } #pragma GCC diagnostic pop #if ((ULONG_MAX) != (UINT_MAX)) namespace std { template <> struct is_signed<__int128> : public true_type {}; } // namespace std #endif sim, class d > typename common_type<c, d>::type floor_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using floor_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b - (a % b < 0); } sim, class d > typename common_type<c, d>::type ceil_div(c a, d b) { static_assert(is_signed<c>::value == is_signed<d>::value, "using ceil_div with different signedness"); if (b < 0) b = -b, a = -a; return a / b + (a % b > 0); } sim > struct REV { using value_type = typename c::value_type; c &x; using it = typename c::reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > struct CREV { using value_type = typename c::value_type; const c &x; using it = typename c::const_reverse_iterator; it begin() { return x.rbegin(); } it end() { return x.rend(); } }; sim > REV<c> reversed(c &x) { return REV<c>{x}; } sim > CREV<c> reversed(const c &x) { return CREV<c>{x}; } #define done(r...) exit(0 * printf(r)) #if defined(LOCAL) || defined(LOCAL2) void __tmi() { cerr << setprecision(6) << fixed << "total time: " << clock() / (ld)CLOCKS_PER_SEC << "s" << endl; } int _ = (atexit(__tmi), 0); #endif // #STAY AT HOME const int nax = 5e5 + 44; const int ROOT = 500; const int L = 8; tuple<int, int, int> cast(tuple<int, int, int> a) { auto [first, second, _] = a; return {first / ROOT, (first / ROOT) & 1 ? second : -second, first}; } bool cmp(tuple<int, int, int> a, tuple<int, int, int> b) { return cast(a) < cast(b); } int a[nax]; int cou[nax]; int ans[nax]; int diffs = 0; void add(int x) { if (cou[x] == 0) diffs++; cou[x]++; } void rem(int x) { cou[x]--; if (cou[x] == 0) diffs--; } int dist(tuple<int, int, int> a, tuple<int, int, int> b) { auto [l1, r1, _] = a; auto [l2, r2, _] = b; if (l1 > r2 || r2 < l1) return r1 - l1 + r2 - l2 + 2; return abs(l1 - l2) + abs(r1 - r2); } int main() { int n, q; scanf("%d%d", &n, &q); for (int i = 1; i <= n; ++i) scanf("%d", a + i); vector<tuple<int, int, int>> qs(q); REP(i, q) { int l, r; scanf("%d%d", &l, &r); qs[i] = {l, r, i}; } sort(ALL(qs), cmp); REP(_, 3) { REP(i, q - 3) if (dist(qs[i], qs[i + 1]) + dist(qs[i + 2], qs[i + 3]) >= dist(qs[i], qs[i + 2]) + dist(qs[i + 1], qs[i + 3])) swap(qs[i + 1], qs[i + 2]); } auto [l, r, q0] = qs[0]; for (int i = l; i <= r; ++i) add(a[i]); ans[q0] = diffs; for (int i = 1; i < q; ++i) { auto [l0, r0, _] = qs[i - 1]; auto [l, r, ind] = qs[i]; if (r < l0 || l > r0) { for (int j = l0; j <= r0; ++j) rem(a[j]); for (int j = l; j <= r; ++j) add(a[j]); } else { while (l < l0) add(a[--l0]); while (l > l0) rem(a[l0++]); while (r < r0) rem(a[r0--]); while (r > r0) add(a[++r0]); } ans[ind] = diffs; } REP(i, q) printf("%d\n", ans[i]); } // #STAY AT HOME
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p02599
C++
Runtime Error
#include <bits/stdc++.h> #define ll long long #define endl '\n' #define rep(i, l, r) for (int i = l; i <= r; i++) #define per(i, r, l) for (int i = r; i >= l; i--) const int MX = 2e5 + 7; const int mod = 998244353; const double pi = 3.1415926535897932384; double isp = 1e-13; using namespace std; ll qpow(ll a, ll b, ll MOD = mod) { for (ll ans = 1;; a = a * a % MOD, b >>= 1) { if (b & 1) ans = ans * a % MOD; if (!b) return ans; } } ll inv(ll a, ll MOD = mod) { return qpow(a, MOD - 2, MOD); } // 要求MOD为质数 ll exgcd(ll a, ll b, ll &x, ll &y) { if (b == 0) { x = 1, y = 0; return a; } ll ret = exgcd(b, a % b, y, x); y -= a / b * x; return ret; } ll getInv(int a, int mod) { ll x, y; ll d = exgcd(a, mod, x, y); return d == 1 ? (x % mod + mod) % mod : -1; } // 求a在mod下的逆元,不存在逆元返回-1,不要求MOD为质数 int n, c[MX], a[MX], ans[MX]; void upd(int pos, int val) { for (int x = pos; x <= n; x += x & -x) c[x] += val; } int Sum(int pos) /// 从0位置到pos位置的区间和 { int ans = 0; for (int x = pos; x; x -= x & -x) ans += c[x]; return ans; } unordered_map<int, int> vis; vector<pair<int, int>> mp[MX]; int main() { ios::sync_with_stdio(0), cin.tie(0); int q; cin >> n >> q; for (int i = 1; i <= n; i++) cin >> a[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; mp[r].push_back(make_pair(l, i)); } for (int i = 1; i <= n; i++) { // cout<<vis[a[i]]<<endl; if (vis[a[i]]) upd(vis[a[i]], -1); upd(i, 1); vis[a[i]] = i; for (auto x : mp[i]) { int l = x.first; ans[x.second] = Sum(i) - Sum(l - 1); } } for (int i = 1; i <= q; i++) { cout << ans[i] << endl; } }
#include <bits/stdc++.h> #define ll long long #define endl '\n' #define rep(i, l, r) for (int i = l; i <= r; i++) #define per(i, r, l) for (int i = r; i >= l; i--) const int MX = 5e5 + 7; const int mod = 998244353; const double pi = 3.1415926535897932384; double isp = 1e-13; using namespace std; ll qpow(ll a, ll b, ll MOD = mod) { for (ll ans = 1;; a = a * a % MOD, b >>= 1) { if (b & 1) ans = ans * a % MOD; if (!b) return ans; } } ll inv(ll a, ll MOD = mod) { return qpow(a, MOD - 2, MOD); } // 要求MOD为质数 ll exgcd(ll a, ll b, ll &x, ll &y) { if (b == 0) { x = 1, y = 0; return a; } ll ret = exgcd(b, a % b, y, x); y -= a / b * x; return ret; } ll getInv(int a, int mod) { ll x, y; ll d = exgcd(a, mod, x, y); return d == 1 ? (x % mod + mod) % mod : -1; } // 求a在mod下的逆元,不存在逆元返回-1,不要求MOD为质数 int n, c[MX], a[MX], ans[MX]; void upd(int pos, int val) { for (int x = pos; x <= n; x += x & -x) c[x] += val; } int Sum(int pos) /// 从0位置到pos位置的区间和 { int ans = 0; for (int x = pos; x; x -= x & -x) ans += c[x]; return ans; } unordered_map<int, int> vis; vector<pair<int, int>> mp[MX]; int main() { ios::sync_with_stdio(0), cin.tie(0); int q; cin >> n >> q; for (int i = 1; i <= n; i++) cin >> a[i]; for (int i = 1; i <= q; i++) { int l, r; cin >> l >> r; mp[r].push_back(make_pair(l, i)); } for (int i = 1; i <= n; i++) { // cout<<vis[a[i]]<<endl; if (vis[a[i]]) upd(vis[a[i]], -1); upd(i, 1); vis[a[i]] = i; for (auto x : mp[i]) { int l = x.first; ans[x.second] = Sum(i) - Sum(l - 1); } } for (int i = 1; i <= q; i++) { cout << ans[i] << endl; } }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define C continue; #define R return #define D double #define I insert #define ll long long #define ld long double #define ull unsigned long long #define ui unsigned int #define pb push_back #define pf push_front #define vi vector<int> #define vc vector<char> #define vs vector<string> #define vb vector<bool> #define vd vector<D> #define vll vector<ll> #define vull vector<ull> #define vld vector<ld> #define PQ priority_queue #define vvi vector<vector<int>> #define vvb vector<vector<bool>> #define vvc vector<vector<char>> #define vvs vector<vs> #define vvll vector<vector<ll>> #define vvd vector<vector<D>> #define vvld vector<vector<ld>> #define all(v) (v).begin(), (v).end() #define allrev(v) (v).rbegin(), (v).rend() #define allcomp(v) v.begin(), v.end(), comp #define allrevcomp(v) v.rbegin(), v.rend(), comp #define pii pair<int, int> #define pll pair<ll, ll> #define pld pair<ld, ld> #define pDD pair<D, D> #define vpld vector<pld> #define vpii vector<pii> #define vpll vector<pll> #define vpDD vector<pDD> #define vvpii vector<vector<pii>> #define F first #define S second #define mp make_pair #define dist(a, b, p, q) sqrt((p - a) * (p - a) + (q - b) * (q - b)) #define pp(n) printf("%.10Lf", n); #define line cout << "\n"; #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); string vow = "aeiou"; int month[] = {-1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; const int dxhorse[] = {-2, -2, -1, -1, 1, 1, 2, 2}; const int dyhorse[] = {1, -1, 2, -2, 2, -2, 1, -1}; const int dx[] = {-1, 0, 1, 0}; const int dy[] = {0, 1, 0, -1}; const ld pie = 3.1415926535897932384626; const ll mod = 1e9 + 7; /// Tip : If a and b are positive integers ; we may say - ceil (a/b) = 1 + floor /// ( (a-1)/b ) . const int N = 5e5 + 10; int v[N]; vvi qry; int n, q; void read() { cin >> n >> q; for (int i = 0; i < n; i++) cin >> v[i]; qry.resize(q); for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--; r--; qry[i] = {l, r, i}; } } int z; bool comp(const vi &a, const vi &b) { if (a[0] / z != b[0] / z) return a < b; return a[1] < b[1]; } int cnt = 0; int h[N]; void add(const int &indx) { int val = v[indx]; h[val]++; if (h[val] == 1) cnt++; } void del(const int &indx) { int val = v[indx]; h[val]--; if (h[val] == 0) cnt--; } void solve(int test_case) { read(); z = sqrt(n); if (z * z < n) z++; sort(allcomp(qry)); int i = 0, j = -1; vi ans(q); for (int indx = 0; indx < q; indx++) { int l = qry[indx][0], r = qry[indx][1]; // cout << "l and r : " << l + 1 << " " << r + 1 ; line ; while (j < r) add(++j); while (j > r) del(j--); while (i < l) del(i++); while (i > l) add(--i); // cout << "i : " << i + 1 << " and j : " << j + 1 << " and cnt : " // << cnt ; line ; ans[qry[indx][2]] = cnt; } for (auto &i : ans) cout << i, line; // line ; } int main() { fast int t = 1; // cin >> t; for (int i = 1; i <= t; i++) { solve(i); } return 0; }
#include <bits/stdc++.h> using namespace std; #define C continue; #define R return #define D double #define I insert #define ll long long #define ld long double #define ull unsigned long long #define ui unsigned int #define pb push_back #define pf push_front #define vi vector<int> #define vc vector<char> #define vs vector<string> #define vb vector<bool> #define vd vector<D> #define vll vector<ll> #define vull vector<ull> #define vld vector<ld> #define PQ priority_queue #define vvi vector<vector<int>> #define vvb vector<vector<bool>> #define vvc vector<vector<char>> #define vvs vector<vs> #define vvll vector<vector<ll>> #define vvd vector<vector<D>> #define vvld vector<vector<ld>> #define all(v) (v).begin(), (v).end() #define allrev(v) (v).rbegin(), (v).rend() #define allcomp(v) v.begin(), v.end(), comp #define allrevcomp(v) v.rbegin(), v.rend(), comp #define pii pair<int, int> #define pll pair<ll, ll> #define pld pair<ld, ld> #define pDD pair<D, D> #define vpld vector<pld> #define vpii vector<pii> #define vpll vector<pll> #define vpDD vector<pDD> #define vvpii vector<vector<pii>> #define F first #define S second #define mp make_pair #define dist(a, b, p, q) sqrt((p - a) * (p - a) + (q - b) * (q - b)) #define pp(n) printf("%.10Lf", n); #define line cout << "\n"; #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); string vow = "aeiou"; int month[] = {-1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; const int dxhorse[] = {-2, -2, -1, -1, 1, 1, 2, 2}; const int dyhorse[] = {1, -1, 2, -2, 2, -2, 1, -1}; const int dx[] = {-1, 0, 1, 0}; const int dy[] = {0, 1, 0, -1}; const ld pie = 3.1415926535897932384626; const ll mod = 1e9 + 7; /// Tip : If a and b are positive integers ; we may say - ceil (a/b) = 1 + floor /// ( (a-1)/b ) . const int N = 5e5 + 10; int v[N]; vvi qry; int n, q; void read() { cin >> n >> q; for (int i = 0; i < n; i++) cin >> v[i]; qry.resize(q); for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--; r--; qry[i] = {l, r, i}; } } int z; bool comp(const vi &a, const vi &b) { if (a[0] / z != b[0] / z) return a < b; if (((a[0] / z) & 1)) return a[1] > b[1]; return a[1] < b[1]; } int cnt = 0; int h[N]; void add(const int &indx) { int val = v[indx]; h[val]++; if (h[val] == 1) cnt++; } void del(const int &indx) { int val = v[indx]; h[val]--; if (h[val] == 0) cnt--; } void solve(int test_case) { read(); z = sqrt(n); if (z * z < n) z++; sort(allcomp(qry)); int i = 0, j = -1; vi ans(q); for (int indx = 0; indx < q; indx++) { int l = qry[indx][0], r = qry[indx][1]; // cout << "l and r : " << l + 1 << " " << r + 1 ; line ; while (j < r) add(++j); while (j > r) del(j--); while (i < l) del(i++); while (i > l) add(--i); // cout << "i : " << i + 1 << " and j : " << j + 1 << " and cnt : " // << cnt ; line ; ans[qry[indx][2]] = cnt; } for (auto &i : ans) cout << i, line; // line ; } int main() { fast int t = 1; // cin >> t; for (int i = 1; i <= t; i++) { solve(i); } return 0; }
insert
111
111
111
114
TLE
p02599
C++
Runtime Error
/* Author:loceaner */ #include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define lowbit(x) (x & (-x)); using namespace std; const int A = 1e5 + 11; const int B = 1e6 + 11; const int mod = 1e9 + 7; const int inf = 0x3f3f3f3f; inline int read() { char c = getchar(); int x = 0, f = 1; for (; !isdigit(c); c = getchar()) if (c == '-') f = -1; for (; isdigit(c); c = getchar()) x = x * 10 + (c ^ 48); return x * f; } struct node { int l, r, pos; } ask[A]; int n, m, c[A], num[A], tree[A], booll[A], nnn[A], ww; void change(int x, int k) { while (x <= n) { c[x] += k; x += lowbit(x); } } int query(int x) { int ans = 0; while (x) { ans += c[x]; x -= lowbit(x); } return ans; } bool cmp(node a, node b) { return a.r < b.r; } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &num[i]); for (int i = 1; i <= m; i++) { scanf("%d%d", &ask[i].l, &ask[i].r); ask[i].pos = i; } sort(ask + 1, ask + 1 + m, cmp); int next = 1; for (int i = 1; i <= m; i++) { for (int j = next; j <= ask[i].r; j++) { if (booll[num[j]]) change(booll[num[j]], -1); change(j, 1), booll[num[j]] = j; } next = ask[i].r + 1; nnn[ask[i].pos] = query(ask[i].r) - query(ask[i].l - 1); } for (int i = 1; i <= m; i++) cout << nnn[i] << "\n"; return 0; }
/* Author:loceaner */ #include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define lowbit(x) (x & (-x)); using namespace std; const int A = 1e6 + 11; const int B = 1e6 + 11; const int mod = 1e9 + 7; const int inf = 0x3f3f3f3f; inline int read() { char c = getchar(); int x = 0, f = 1; for (; !isdigit(c); c = getchar()) if (c == '-') f = -1; for (; isdigit(c); c = getchar()) x = x * 10 + (c ^ 48); return x * f; } struct node { int l, r, pos; } ask[A]; int n, m, c[A], num[A], tree[A], booll[A], nnn[A], ww; void change(int x, int k) { while (x <= n) { c[x] += k; x += lowbit(x); } } int query(int x) { int ans = 0; while (x) { ans += c[x]; x -= lowbit(x); } return ans; } bool cmp(node a, node b) { return a.r < b.r; } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &num[i]); for (int i = 1; i <= m; i++) { scanf("%d%d", &ask[i].l, &ask[i].r); ask[i].pos = i; } sort(ask + 1, ask + 1 + m, cmp); int next = 1; for (int i = 1; i <= m; i++) { for (int j = next; j <= ask[i].r; j++) { if (booll[num[j]]) change(booll[num[j]], -1); change(j, 1), booll[num[j]] = j; } next = ask[i].r + 1; nnn[ask[i].pos] = query(ask[i].r) - query(ask[i].l - 1); } for (int i = 1; i <= m; i++) cout << nnn[i] << "\n"; return 0; }
replace
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11
12
0
p02599
C++
Runtime Error
#include <bits/stdc++.h> #define SZ(x) ((int)(x).size()) #define REP(i, n) for (int i = 0; i < (int)(n); i++) #define REP1(i, a, b) for (int i = a; i <= (int)(b); i++) #define ALL(c) (c).begin(), (c).end() #define RALL(c) (c).rbegin(), (c).rend() #define PB push_back #define MP make_pair using namespace std; typedef long long LL; typedef vector<int> VI; typedef pair<int, int> PII; template <class T> inline bool chmax(T &a, const T &b) { return b > a ? a = b, true : false; } template <class T> inline bool chmin(T &a, const T &b) { return b < a ? a = b, true : false; } template <class T, class F = less<T>> void sort_uniq(vector<T> &v, F f = F()) { sort(begin(v), end(v), f); v.resize(unique(begin(v), end(v)) - begin(v)); } const int N = 2e5 + 5; int A[N], L[N], R[N]; set<int> dp[N][18]; int n, qq; map<int, int> seen; // fenwick int fenw[N]; void upd(int k, int x) { for (int i = k; i <= n; i += i & -i) { fenw[i] += x; } } int get(int k) { int res = 0; for (int i = k; i; i -= i & -i) { res += fenw[i]; } return res; } // 用BIT記錄i之前,distinct value的數量 // 如果在j位置(j<i)已經出現A[i],先將j位置-1,在i位置+1 // fenw[i]=1,代表A[i]在位置i最後出現 // 將query按照[l,r]的r升冪排序, // 再遍歷array A時,如果對到達的r,query BIT,計算distinct value int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> n >> qq; REP(i, n) cin >> A[i]; REP(i, qq) cin >> L[i] >> R[i]; VI Q(qq), ans(qq); iota(ALL(Q), 0); sort(ALL(Q), [&](int i, int j) { return R[i] == R[j] ? L[i] < L[j] : R[i] < R[j]; }); int k = 0; REP(i, n) { if (seen.count(A[i])) { upd(seen[A[i]], -1); } upd(i + 1, 1); seen[A[i]] = i + 1; while (k < qq && R[Q[k]] - 1 == i) { ans[Q[k]] = get(R[Q[k]]) - get(L[Q[k]] - 1); k++; } } for (int i : ans) { cout << i << '\n'; } return 0; }
#include <bits/stdc++.h> #define SZ(x) ((int)(x).size()) #define REP(i, n) for (int i = 0; i < (int)(n); i++) #define REP1(i, a, b) for (int i = a; i <= (int)(b); i++) #define ALL(c) (c).begin(), (c).end() #define RALL(c) (c).rbegin(), (c).rend() #define PB push_back #define MP make_pair using namespace std; typedef long long LL; typedef vector<int> VI; typedef pair<int, int> PII; template <class T> inline bool chmax(T &a, const T &b) { return b > a ? a = b, true : false; } template <class T> inline bool chmin(T &a, const T &b) { return b < a ? a = b, true : false; } template <class T, class F = less<T>> void sort_uniq(vector<T> &v, F f = F()) { sort(begin(v), end(v), f); v.resize(unique(begin(v), end(v)) - begin(v)); } const int N = 5e5 + 5; int A[N], L[N], R[N]; set<int> dp[N][18]; int n, qq; map<int, int> seen; // fenwick int fenw[N]; void upd(int k, int x) { for (int i = k; i <= n; i += i & -i) { fenw[i] += x; } } int get(int k) { int res = 0; for (int i = k; i; i -= i & -i) { res += fenw[i]; } return res; } // 用BIT記錄i之前,distinct value的數量 // 如果在j位置(j<i)已經出現A[i],先將j位置-1,在i位置+1 // fenw[i]=1,代表A[i]在位置i最後出現 // 將query按照[l,r]的r升冪排序, // 再遍歷array A時,如果對到達的r,query BIT,計算distinct value int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> n >> qq; REP(i, n) cin >> A[i]; REP(i, qq) cin >> L[i] >> R[i]; VI Q(qq), ans(qq); iota(ALL(Q), 0); sort(ALL(Q), [&](int i, int j) { return R[i] == R[j] ? L[i] < L[j] : R[i] < R[j]; }); int k = 0; REP(i, n) { if (seen.count(A[i])) { upd(seen[A[i]], -1); } upd(i + 1, 1); seen[A[i]] = i + 1; while (k < qq && R[Q[k]] - 1 == i) { ans[Q[k]] = get(R[Q[k]]) - get(L[Q[k]] - 1); k++; } } for (int i : ans) { cout << i << '\n'; } return 0; }
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24
25
-11
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define REP(i, m, n) for (int i = (m); i < (int)(n); i++) #define RREP(i, m, n) for (int i = (int)((n)-1); i >= m; i--) #define rep(i, n) REP(i, 0, n) #define rrep(i, n) RREP(i, 0, n) #define all(a) (a).begin(), (a).end() #define rall(a) (a).rbegin(), (a).rend() #define fi first #define se second #define debug(...) \ { \ cerr << "[L" << __LINE__ << "] "; \ _debug(__VA_ARGS__); \ } template <typename T> string join(const vector<T> &v, string del = ", ") { stringstream s; for (auto x : v) s << del << x; return s.str().substr(del.size()); } template <typename T> ostream &operator<<(ostream &o, const vector<T> &v) { if (v.size()) o << "[" << join(v) << "]"; return o; } template <typename T> ostream &operator<<(ostream &o, const vector<vector<T>> &vv) { int l = vv.size(); if (l) { o << endl; rep(i, l) o << (i == 0 ? "[ " : ",\n ") << vv[i] << (i == l - 1 ? " ]" : ""); } return o; } template <typename T1, typename T2> ostream &operator<<(ostream &o, const pair<T1, T2> &p) { return o << "(" << p.first << ", " << p.second << ")"; } inline void _debug() { cerr << endl; } template <class First, class... Rest> void _debug(const First &first, const Rest &...rest) { cerr << first << " "; _debug(rest...); } typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; const double PI = (1 * acos(0.0)); const double EPS = 1e-9; const int INF = 0x3f3f3f3f; const ll INFL = 0x3f3f3f3f3f3f3f3fLL; const ll mod = 1e9 + 7; inline void finput(string filename) { freopen(filename.c_str(), "r", stdin); } template <typename T> struct BIT { int n; vector<T> dat; BIT(int n) : n(n), dat(n + 1, 0) {} void add(int x, T val) { for (int i = x + 1; i <= n; i += (i & -i)) dat[i] += val; } T sum(int x) { T ret = 0; for (int i = x + 1; i > 0; i -= (i & -i)) ret += dat[i]; return ret; } T sum(int a, int b) { return sum(b) - sum(a - 1); } }; int main() { ios_base::sync_with_stdio(0); // finput("./input"); int n, q; cin >> n >> q; vi C(n + 1); rep(i, n) cin >> C[i + 1]; vector<tuple<ll, ll, ll>> Q; rep(i, q) { int l, r; cin >> l >> r; Q.emplace_back(r, l, i); } Q.emplace_back(n + 10, 0, 0); sort(all(Q)); auto bit = BIT<ll>(n + 10); vi last(n + 1, -1); int pos = 0; vi ans(n); rep(i, q) { int qr = get<0>(Q[i]); int ql = get<1>(Q[i]); int idx = get<2>(Q[i]); while (pos <= qr) { if (last[C[pos]] != -1) { bit.add(last[C[pos]], -1); } bit.add(pos, 1); last[C[pos]] = pos; pos++; } ans[idx] = bit.sum(ql, qr); } rep(i, q) cout << ans[i] << endl; return 0; }
#include <bits/stdc++.h> using namespace std; #define REP(i, m, n) for (int i = (m); i < (int)(n); i++) #define RREP(i, m, n) for (int i = (int)((n)-1); i >= m; i--) #define rep(i, n) REP(i, 0, n) #define rrep(i, n) RREP(i, 0, n) #define all(a) (a).begin(), (a).end() #define rall(a) (a).rbegin(), (a).rend() #define fi first #define se second #define debug(...) \ { \ cerr << "[L" << __LINE__ << "] "; \ _debug(__VA_ARGS__); \ } template <typename T> string join(const vector<T> &v, string del = ", ") { stringstream s; for (auto x : v) s << del << x; return s.str().substr(del.size()); } template <typename T> ostream &operator<<(ostream &o, const vector<T> &v) { if (v.size()) o << "[" << join(v) << "]"; return o; } template <typename T> ostream &operator<<(ostream &o, const vector<vector<T>> &vv) { int l = vv.size(); if (l) { o << endl; rep(i, l) o << (i == 0 ? "[ " : ",\n ") << vv[i] << (i == l - 1 ? " ]" : ""); } return o; } template <typename T1, typename T2> ostream &operator<<(ostream &o, const pair<T1, T2> &p) { return o << "(" << p.first << ", " << p.second << ")"; } inline void _debug() { cerr << endl; } template <class First, class... Rest> void _debug(const First &first, const Rest &...rest) { cerr << first << " "; _debug(rest...); } typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; const double PI = (1 * acos(0.0)); const double EPS = 1e-9; const int INF = 0x3f3f3f3f; const ll INFL = 0x3f3f3f3f3f3f3f3fLL; const ll mod = 1e9 + 7; inline void finput(string filename) { freopen(filename.c_str(), "r", stdin); } template <typename T> struct BIT { int n; vector<T> dat; BIT(int n) : n(n), dat(n + 1, 0) {} void add(int x, T val) { for (int i = x + 1; i <= n; i += (i & -i)) dat[i] += val; } T sum(int x) { T ret = 0; for (int i = x + 1; i > 0; i -= (i & -i)) ret += dat[i]; return ret; } T sum(int a, int b) { return sum(b) - sum(a - 1); } }; int main() { ios_base::sync_with_stdio(0); // finput("./input"); int n, q; cin >> n >> q; vi C(n + 1); rep(i, n) cin >> C[i + 1]; vector<tuple<ll, ll, ll>> Q; rep(i, q) { int l, r; cin >> l >> r; Q.emplace_back(r, l, i); } Q.emplace_back(n + 10, 0, 0); sort(all(Q)); auto bit = BIT<ll>(n + 10); vi last(n + 1, -1); int pos = 0; vi ans(q); rep(i, q) { int qr = get<0>(Q[i]); int ql = get<1>(Q[i]); int idx = get<2>(Q[i]); while (pos <= qr) { if (last[C[pos]] != -1) { bit.add(last[C[pos]], -1); } bit.add(pos, 1); last[C[pos]] = pos; pos++; } ans[idx] = bit.sum(ql, qr); } rep(i, q) cout << ans[i] << endl; return 0; }
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0
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[200001]; int n, m, a[100001], ans[200001]; int st[5 * 100001], used[1000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[1000001]; int n, m, a[500001], ans[1000001]; int st[5 * 500001], used[1000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
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p02599
C++
Time Limit Exceeded
#include <algorithm> #include <cmath> #include <iostream> #include <set> #include <stack> #include <string> #include <unordered_set> #include <vector> using namespace std; struct query { int l; int r; int i; int ans; }; signed main() { int n, t; cin >> n >> t; vector<int> a(n); for (int i = 0; i < n; ++i) { cin >> a[i]; } vector<query> q(t); for (int i = 0; i < t; ++i) { cin >> q[i].l >> q[i].r; q[i].i = i; q[i].l--; q[i].r--; } int sqrtn = sqrt(n) + 1; sort(q.begin(), q.end(), [&sqrtn](query &a, query &b) { if (a.r == b.r) return a.l < b.l; return a.r < b.r; }); vector<int> m(n + 1); int l = 0; int r = -1; int cnt = 0; for (auto &q : q) { if (r < q.l || q.r < l) { m.assign(n + 1, 0); cnt = 0; l = q.l; r = q.l - 1; } while (r < q.r) { r++; if (m[a[r]] == 0) cnt++; m[a[r]]++; } while (r > q.r) { m[a[r]]--; if (m[a[r]] == 0) cnt--; r--; } while (l < q.l) { m[a[l]]--; if (m[a[l]] == 0) cnt--; l++; } while (l > q.l) { l--; if (m[a[l]] == 0) cnt++; m[a[l]]++; } q.ans = cnt; } sort(q.begin(), q.end(), [](query &a, query &b) { return a.i < b.i; }); for (auto &q : q) { cout << q.ans << '\n'; } }
#include <algorithm> #include <cmath> #include <iostream> #include <set> #include <stack> #include <string> #include <unordered_set> #include <vector> using namespace std; struct query { int l; int r; int i; int ans; }; signed main() { int n, t; cin >> n >> t; vector<int> a(n); for (int i = 0; i < n; ++i) { cin >> a[i]; } vector<query> q(t); for (int i = 0; i < t; ++i) { cin >> q[i].l >> q[i].r; q[i].i = i; q[i].l--; q[i].r--; } int sqrtn = sqrt(n) + 1; sort(q.begin(), q.end(), [&sqrtn](query &a, query &b) { if (a.l / sqrtn != b.l / sqrtn) { return a.l / sqrtn < b.l / sqrtn; } return a.r < b.r; }); vector<int> m(n + 1); int l = 0; int r = -1; int cnt = 0; for (auto &q : q) { if (r < q.l || q.r < l) { m.assign(n + 1, 0); cnt = 0; l = q.l; r = q.l - 1; } while (r < q.r) { r++; if (m[a[r]] == 0) cnt++; m[a[r]]++; } while (r > q.r) { m[a[r]]--; if (m[a[r]] == 0) cnt--; r--; } while (l < q.l) { m[a[l]]--; if (m[a[l]] == 0) cnt--; l++; } while (l > q.l) { l--; if (m[a[l]] == 0) cnt++; m[a[l]]++; } q.ans = cnt; } sort(q.begin(), q.end(), [](query &a, query &b) { return a.i < b.i; }); for (auto &q : q) { cout << q.ans << '\n'; } }
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TLE
p02599
C++
Runtime Error
#include <algorithm> #include <iostream> #include <unordered_map> #include <vector> using namespace std; int k = 1000; bool cmp(pair<pair<int, int>, int> a, pair<pair<int, int>, int> b) { if (a.first.first / k < b.first.first / k) return true; if (a.first.first / k == b.first.first / k && a.first.second < b.first.second) return true; return false; } int cnt[300001]; int a[300001]; int ans[300001]; int answ = 0; void add(int i) { if (cnt[a[i]] == 0) { ++answ; } cnt[a[i]]++; } void del(int i) { if (cnt[a[i]] == 1) { --answ; } cnt[a[i]]--; } int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, q; cin >> n >> q; vector<int> f; for (int i = 0; i < n; ++i) { cin >> a[i]; f.push_back(a[i]); } sort(f.begin(), f.end()); f.resize(unique(f.begin(), f.end()) - f.begin()); unordered_map<int, int> d; for (int i = 0; i < f.size(); ++i) { d[f[i]] = i; } for (int i = 0; i < n; ++i) { a[i] = d[a[i]]; } vector<pair<pair<int, int>, int>> qq; for (int i = 0; i < q; ++i) { int l, r; cin >> l >> r; --l; --r; qq.push_back(make_pair(make_pair(l, r), i)); } sort(qq.begin(), qq.end(), cmp); int L = 0, R = -1; for (int i = 0; i < q; ++i) { int l = qq[i].first.first; int r = qq[i].first.second; while (L > l) add(--L); while (R < r) add(++R); while (L < l) del(L++); while (R > r) del(R--); // cout << R << " RR " << answ << endl; // cout << L << " LL " << answ << endl; ans[qq[i].second] = answ; } for (int i = 0; i < q; ++i) { cout << ans[i] << '\n'; } }
#include <algorithm> #include <iostream> #include <unordered_map> #include <vector> using namespace std; int k = 1000; bool cmp(pair<pair<int, int>, int> a, pair<pair<int, int>, int> b) { if (a.first.first / k < b.first.first / k) return true; if (a.first.first / k == b.first.first / k && a.first.second < b.first.second) return true; return false; } int cnt[500001]; int a[500001]; int ans[500001]; int answ = 0; void add(int i) { if (cnt[a[i]] == 0) { ++answ; } cnt[a[i]]++; } void del(int i) { if (cnt[a[i]] == 1) { --answ; } cnt[a[i]]--; } int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, q; cin >> n >> q; vector<int> f; for (int i = 0; i < n; ++i) { cin >> a[i]; f.push_back(a[i]); } sort(f.begin(), f.end()); f.resize(unique(f.begin(), f.end()) - f.begin()); unordered_map<int, int> d; for (int i = 0; i < f.size(); ++i) { d[f[i]] = i; } for (int i = 0; i < n; ++i) { a[i] = d[a[i]]; } vector<pair<pair<int, int>, int>> qq; for (int i = 0; i < q; ++i) { int l, r; cin >> l >> r; --l; --r; qq.push_back(make_pair(make_pair(l, r), i)); } sort(qq.begin(), qq.end(), cmp); int L = 0, R = -1; for (int i = 0; i < q; ++i) { int l = qq[i].first.first; int r = qq[i].first.second; while (L > l) add(--L); while (R < r) add(++R); while (L < l) del(L++); while (R > r) del(R--); // cout << R << " RR " << answ << endl; // cout << L << " LL " << answ << endl; ans[qq[i].second] = answ; } for (int i = 0; i < q; ++i) { cout << ans[i] << '\n'; } }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)n; ++i) #define rrep(i, n) for (int i = (int)n - 1; i >= 0; --i) using namespace std; using ll = long long; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <typename T, typename... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T, typename U, typename... V> typename enable_if<is_same<T, U>::value>::type fill_v(U &u, const V... v) { u = U(v...); } template <typename T, typename U, typename... V> typename enable_if<!is_same<T, U>::value>::type fill_v(U &u, const V... v) { for (auto &e : u) fill_v<T>(e, v...); } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, q; cin >> n >> q; vector<int> a(n); rep(i, n) cin >> a[i], a[i]--; vector<int> ql(q), qr(q), qi(q); rep(i, q) cin >> ql[i] >> qr[i], ql[i]--; iota(qi.begin(), qi.end(), 0); int width = sqrt(q / 2 + 1); sort(qi.begin(), qi.end(), [&](int i, int j) { if (ql[i] / width != ql[j] / width) return ql[i] < ql[j]; return qr[i] < qr[j]; }); vector<int> cnt(n), ans(q); int sum = 0; int l = 0, r = 0; auto add = [&](int i) { if (cnt[a[i]]++ == 0) sum++; }; auto del = [&](int i) { if (--cnt[a[i]] == 0) --sum; }; for (int i : qi) { while (ql[i] < l) add(--l); while (r < qr[i]) add(r++); while (l < ql[i]) del(l++); while (qr[i] < r) del(--r); ans[i] = sum; } rep(i, q) cout << ans[i] << endl; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)n; ++i) #define rrep(i, n) for (int i = (int)n - 1; i >= 0; --i) using namespace std; using ll = long long; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <typename T, typename... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T, typename U, typename... V> typename enable_if<is_same<T, U>::value>::type fill_v(U &u, const V... v) { u = U(v...); } template <typename T, typename U, typename... V> typename enable_if<!is_same<T, U>::value>::type fill_v(U &u, const V... v) { for (auto &e : u) fill_v<T>(e, v...); } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, q; cin >> n >> q; vector<int> a(n); rep(i, n) cin >> a[i], a[i]--; vector<int> ql(q), qr(q), qi(q); rep(i, q) cin >> ql[i] >> qr[i], ql[i]--; iota(qi.begin(), qi.end(), 0); int width = sqrt(q); sort(qi.begin(), qi.end(), [&](int i, int j) { if (ql[i] / width != ql[j] / width) return ql[i] < ql[j]; return qr[i] < qr[j]; }); vector<int> cnt(n), ans(q); int sum = 0; int l = 0, r = 0; auto add = [&](int i) { if (cnt[a[i]]++ == 0) sum++; }; auto del = [&](int i) { if (--cnt[a[i]] == 0) --sum; }; for (int i : qi) { while (ql[i] < l) add(--l); while (r < qr[i]) add(r++); while (l < ql[i]) del(l++); while (qr[i] < r) del(--r); ans[i] = sum; } rep(i, q) cout << ans[i] << endl; }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> // ios::sync_with_stdio(false);cin.tie(0);cout.tie(0); // clock_t start=clock();clock_t // end=clock();cout<<(double)(end-start)/CLOCKS_PER_SEC<<endl; using namespace std; typedef long long ll; typedef unsigned long long ull; typedef unsigned int ui; typedef pair<int, int> pii; typedef pair<pii, int> ppii; typedef pair<int, pii> pipi; typedef pair<ll, ll> pll; typedef pair<pll, ll> ppll; typedef pair<ll, pll> plpl; typedef pair<pii, pii> pippi; typedef tuple<ll, ll, ll> tl; typedef pair<double, double> pdd; typedef vector<vector<ll>> mat; ll mod = 1000000007; ll mod2 = 998244353; ll mod3 = 1000003; ll mod4 = 998244853; ll mod5 = 1000000009; ll inf = 1LL << 61; int iinf = 1 << 30; double pi = 3.14159265358979323846; double pi2 = pi / 2.0; double eps = 1e-8; #define rep(i, m, n) for (ll i = m; i < n; i++) #define rrep(i, n, m) for (ll i = n; i >= m; i--) #define srep(itr, st) for (auto itr = st.begin(); itr != st.end(); itr++) #define mrep(itr, mp) for (auto &itr : mp) #define Max(a, b) a = max(a, b) #define Min(a, b) a = min(a, b) // #define endl "\n" int dh[4] = {1, 0, -1, 0}; int dw[4] = {0, 1, 0, -1}; int ddh[8] = {-1, -1, -1, 0, 0, 1, 1, 1}; int ddw[8] = {-1, 0, 1, -1, 1, -1, 0, 1}; struct custom_hash { static uint64_t splitmix64(uint64_t x) { // http://xorshift.di.unimi.it/splitmix64.c x += 0x9e3779b97f4a7c15; x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9; x = (x ^ (x >> 27)) * 0x94d049bb133111eb; return x ^ (x >> 31); } size_t operator()(uint64_t x) const { static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count(); return splitmix64(x + FIXED_RANDOM); } }; #define umh unordered_map<int, int, custom_hash> ll gcd(ll a, ll b) { if (a < 0) a = -a; if (b < 0) b = -b; if (a < b) swap(a, b); if (b == 0) return a; if (a % b == 0) return b; return gcd(b, a % b); } ll lcm(ll a, ll b) { ll c = gcd(a, b); return a * b / c; } ll Pow(ll n, ll k) { if (k < 0) return 0; ll ret = 1; ll now = n; while (k > 0) { if (k & 1) ret *= now; now *= now; k /= 2; } return ret; } ll beki(ll n, ll k, ll md) { ll ret = 1; ll now = n; now %= md; while (k > 0) { if (k % 2 == 1) { ret *= now; ret %= md; } now *= now; now %= md; k /= 2; } return ret; } ll gyaku(ll n, ll md) { return beki(n, md - 2, md); } ll popcount(ll n) { ll ret = 0; ll u = n; while (u > 0) { ret += u % 2; u /= 2; } return ret; } struct BIT { private: ll u; vector<ll> bit; public: BIT(ll n) { u = 1; while (u < n) u *= 2; bit.resize(u + 10, 0); } void add(ll n, ll x) { ll i = n; bit[i] += x; // bit[i]%=mod; while (i < u) { i += i & (-i); bit[i] += x; // bit[i]%=mod; } } ll sum(ll n) { ll i = n; ll ret = 0; while (i > 0) { ret += bit[i]; i -= i & (-i); // ret%=mod; } return ret; } ll lb(ll w) { if (w <= 0) return 0; ll x = 0; for (ll k = u; k > 0; k /= 2) { if (x + k <= u && bit[x + k] < w) { w -= bit[x + k]; x += k; } } return x + 1; } }; // vector<BIT> b(26,n+1); int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); ll n, q; cin >> n >> q; ll c[n + 1]; vector<ll> v[n + 1]; rep(i, 1, n + 1) { cin >> c[i]; v[c[i]].push_back(i); } ll nex[n]; BIT b(n + 1); rep(i, 1, n + 1) { rep(j, 0, v[i].size()) { if (j == v[i].size() - 1) nex[v[i][j]] = n + 1; else nex[v[i][j]] = v[i][j + 1]; } if (v[i].size() > 0) b.add(v[i][0], 1); } vector<pll> w[n + 1]; rep(i, 0, q) { ll a, b; cin >> a >> b; w[a].push_back({b, i}); } ll ans[q]; rep(i, 1, n + 1) { rep(j, 0, w[i].size()) { ans[w[i][j].second] = b.sum(w[i][j].first); } b.add(i, -1); b.add(nex[i], 1); } rep(i, 0, q) cout << ans[i] << endl; }
#include <bits/stdc++.h> // ios::sync_with_stdio(false);cin.tie(0);cout.tie(0); // clock_t start=clock();clock_t // end=clock();cout<<(double)(end-start)/CLOCKS_PER_SEC<<endl; using namespace std; typedef long long ll; typedef unsigned long long ull; typedef unsigned int ui; typedef pair<int, int> pii; typedef pair<pii, int> ppii; typedef pair<int, pii> pipi; typedef pair<ll, ll> pll; typedef pair<pll, ll> ppll; typedef pair<ll, pll> plpl; typedef pair<pii, pii> pippi; typedef tuple<ll, ll, ll> tl; typedef pair<double, double> pdd; typedef vector<vector<ll>> mat; ll mod = 1000000007; ll mod2 = 998244353; ll mod3 = 1000003; ll mod4 = 998244853; ll mod5 = 1000000009; ll inf = 1LL << 61; int iinf = 1 << 30; double pi = 3.14159265358979323846; double pi2 = pi / 2.0; double eps = 1e-8; #define rep(i, m, n) for (ll i = m; i < n; i++) #define rrep(i, n, m) for (ll i = n; i >= m; i--) #define srep(itr, st) for (auto itr = st.begin(); itr != st.end(); itr++) #define mrep(itr, mp) for (auto &itr : mp) #define Max(a, b) a = max(a, b) #define Min(a, b) a = min(a, b) // #define endl "\n" int dh[4] = {1, 0, -1, 0}; int dw[4] = {0, 1, 0, -1}; int ddh[8] = {-1, -1, -1, 0, 0, 1, 1, 1}; int ddw[8] = {-1, 0, 1, -1, 1, -1, 0, 1}; struct custom_hash { static uint64_t splitmix64(uint64_t x) { // http://xorshift.di.unimi.it/splitmix64.c x += 0x9e3779b97f4a7c15; x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9; x = (x ^ (x >> 27)) * 0x94d049bb133111eb; return x ^ (x >> 31); } size_t operator()(uint64_t x) const { static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count(); return splitmix64(x + FIXED_RANDOM); } }; #define umh unordered_map<int, int, custom_hash> ll gcd(ll a, ll b) { if (a < 0) a = -a; if (b < 0) b = -b; if (a < b) swap(a, b); if (b == 0) return a; if (a % b == 0) return b; return gcd(b, a % b); } ll lcm(ll a, ll b) { ll c = gcd(a, b); return a * b / c; } ll Pow(ll n, ll k) { if (k < 0) return 0; ll ret = 1; ll now = n; while (k > 0) { if (k & 1) ret *= now; now *= now; k /= 2; } return ret; } ll beki(ll n, ll k, ll md) { ll ret = 1; ll now = n; now %= md; while (k > 0) { if (k % 2 == 1) { ret *= now; ret %= md; } now *= now; now %= md; k /= 2; } return ret; } ll gyaku(ll n, ll md) { return beki(n, md - 2, md); } ll popcount(ll n) { ll ret = 0; ll u = n; while (u > 0) { ret += u % 2; u /= 2; } return ret; } struct BIT { private: ll u; vector<ll> bit; public: BIT(ll n) { u = 1; while (u < n) u *= 2; bit.resize(u + 10, 0); } void add(ll n, ll x) { ll i = n; bit[i] += x; // bit[i]%=mod; while (i < u) { i += i & (-i); bit[i] += x; // bit[i]%=mod; } } ll sum(ll n) { ll i = n; ll ret = 0; while (i > 0) { ret += bit[i]; i -= i & (-i); // ret%=mod; } return ret; } ll lb(ll w) { if (w <= 0) return 0; ll x = 0; for (ll k = u; k > 0; k /= 2) { if (x + k <= u && bit[x + k] < w) { w -= bit[x + k]; x += k; } } return x + 1; } }; // vector<BIT> b(26,n+1); int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); ll n, q; cin >> n >> q; ll c[n + 1]; vector<ll> v[n + 1]; rep(i, 1, n + 1) { cin >> c[i]; v[c[i]].push_back(i); } ll nex[n + 1]; BIT b(n + 1); rep(i, 1, n + 1) { rep(j, 0, v[i].size()) { if (j == v[i].size() - 1) nex[v[i][j]] = n + 1; else nex[v[i][j]] = v[i][j + 1]; } if (v[i].size() > 0) b.add(v[i][0], 1); } vector<pll> w[n + 1]; rep(i, 0, q) { ll a, b; cin >> a >> b; w[a].push_back({b, i}); } ll ans[q]; rep(i, 1, n + 1) { rep(j, 0, w[i].size()) { ans[w[i][j].second] = b.sum(w[i][j].first); } b.add(i, -1); b.add(nex[i], 1); } rep(i, 0, q) cout << ans[i] << endl; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tag_and_trait.hpp> #include <ext/pb_ds/tree_policy.hpp> template <class Key> using rb_tree_set = __gnu_pbds::tree<Key, __gnu_pbds::null_type, std::less<Key>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; using namespace std; using i64 = long long; using u64 = unsigned long long; #define REP(i, n) for (int i = 0; (i64)(i) < (i64)(n); ++i) #ifdef ENABLE_DEBUG template <typename T> void debug(T value) { cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { cerr << value << ", "; debug(args...); } #define DEBUG(...) \ do { \ cerr << " \033[33m (L" << __LINE__ << ") "; \ cerr << #__VA_ARGS__ << ":\033[0m "; \ debug(__VA_ARGS__); \ cerr << endl; \ } while (0) #else #define debug(...) #define DEBUG(...) #endif int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int N, Q; cin >> N >> Q; vector<int> colors(N); REP(i, N) cin >> colors[i]; vector<int> lefts(Q), rights(Q), ids(Q); REP(i, Q) { cin >> lefts[i] >> rights[i]; --lefts[i]; --rights[i]; ids[i] = i; } sort(ids.begin(), ids.end(), [&](int i, int j) { return rights[i] < rights[j]; }); rb_tree_set<pair<int, int>> st; vector<int> prev(500'005, -1); vector<int> res(Q); int j = 0; for (int i = 0; i < N; ++i) { int pc = prev[colors[i]]; if (pc >= 0) st.insert({pc, i}); for (; j < Q && rights[ids[j]] == i; ++j) { auto it = st.lower_bound(make_pair(lefts[ids[j]], -1)); int dup_count = distance(it, st.end()); res[ids[j]] = rights[ids[j]] - lefts[ids[j]] + 1 - dup_count; DEBUG(j, ids[j], lefts[ids[j]], rights[ids[j]], dup_count, res[ids[j]]); } prev[colors[i]] = i; } for (int i = 0; i < Q; ++i) cout << res[i] << '\n'; }
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tag_and_trait.hpp> #include <ext/pb_ds/tree_policy.hpp> template <class Key> using rb_tree_set = __gnu_pbds::tree<Key, __gnu_pbds::null_type, std::less<Key>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; using namespace std; using i64 = long long; using u64 = unsigned long long; #define REP(i, n) for (int i = 0; (i64)(i) < (i64)(n); ++i) #ifdef ENABLE_DEBUG template <typename T> void debug(T value) { cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { cerr << value << ", "; debug(args...); } #define DEBUG(...) \ do { \ cerr << " \033[33m (L" << __LINE__ << ") "; \ cerr << #__VA_ARGS__ << ":\033[0m "; \ debug(__VA_ARGS__); \ cerr << endl; \ } while (0) #else #define debug(...) #define DEBUG(...) #endif int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int N, Q; cin >> N >> Q; vector<int> colors(N); REP(i, N) cin >> colors[i]; vector<int> lefts(Q), rights(Q), ids(Q); REP(i, Q) { cin >> lefts[i] >> rights[i]; --lefts[i]; --rights[i]; ids[i] = i; } sort(ids.begin(), ids.end(), [&](int i, int j) { return rights[i] < rights[j]; }); rb_tree_set<pair<int, int>> st; vector<int> prev(500'005, -1); vector<int> res(Q); int j = 0; for (int i = 0; i < N; ++i) { int pc = prev[colors[i]]; if (pc >= 0) st.insert({pc, i}); for (; j < Q && rights[ids[j]] == i; ++j) { auto it = st.lower_bound(make_pair(lefts[ids[j]], -1)); int dup_count = 0; if (it != st.end()) { dup_count = st.size() - st.order_of_key(*it); } res[ids[j]] = rights[ids[j]] - lefts[ids[j]] + 1 - dup_count; DEBUG(j, ids[j], lefts[ids[j]], rights[ids[j]], dup_count, res[ids[j]]); } prev[colors[i]] = i; } for (int i = 0; i < Q; ++i) cout << res[i] << '\n'; }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #pragma region Macros #define ios \ ios::sync_with_stdio(false); \ cin.tie(nullptr); #define VEC(type, name, size) \ V<type> name(size); \ IN(name) #define VVEC(type, name, h, w) \ VV<type> name(h, V<type>(w)); \ IN(name) #define INT(...) \ int __VA_ARGS__; \ IN(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ IN(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ IN(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ IN(__VA_ARGS__) #define DOUBLE(...) \ DOUBLE __VA_ARGS__; \ IN(__VA_ARGS__) #define LD(...) \ LD __VA_ARGS__; \ IN(__VA_ARGS__) template <class T> void scan(T &a) { cin >> a; } template <class T> void scan(vector<T> &a) { for (auto &i : a) scan(i); } template <class T, class L> void scan(pair<T, L> &p) { scan(p.first); scan(p.second); } void IN() {} template <class Head, class... Tail> void IN(Head &head, Tail &...tail) { scan(head); IN(tail...); } template <class T> inline void print(T x) { cout << x << '\n'; } #define ll long long #define ld long double #define FOR(i, l, r) for (ll i = (l); i < (r); ++i) #define REP(i, n) FOR(i, 0, n) #define REPS(i, n) FOR(i, 1, n + 1) #define RFOR(i, l, r) for (ll i = (l); i >= (r); --i) #define RREP(i, n) RFOR(i, n - 1, 0) #define RREPS(i, n) RFOR(i, n, 1) #define pb push_back #define eb emplace_back #define SZ(x) ((ll)(x).size()) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() template <class T = ll> using V = vector<T>; template <class T = ll> using VV = V<V<T>>; template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } inline void Yes(bool b = true) { cout << (b ? "Yes" : "No") << '\n'; } inline void YES(bool b = true) { cout << (b ? "YES" : "NO") << '\n'; } inline void err(bool b = true) { if (b) { cout << -1 << '\n'; exit(0); } } template <class T> inline void fin(bool b = true, T e = 0) { if (b) { cout << e << '\n'; exit(0); } } template <class T> T Roundup_div(T x, T y) { return (x + (y - 1)) / y; } template <typename T> T pow(T a, long long n, T e = 1) { T ret = e; while (n) { if (n & 1) ret *= a; a *= a; n >>= 1; } return ret; } const ll INF = 1e18; #pragma endregion // Binary Indexed Tree (Fenwick Tree) template <typename T> struct BIT { int n, p; vector<T> d; BIT(int n = 0) : n(n), d(n + 1) { p = 1; while (p < n) p *= 2; } // 更新 void add(int i, T x = 1) { for (i++; i <= n; i += i & -i) d[i] += x; } //[0,i)の和 T sum(int i) { T res = 0; for (; i; i -= i & -i) res += d[i]; return res; } //[l,r)の和 T sum(int l, int r) { return sum(r) - sum(l); } // v0+v1+…vx>=mを満たすmin(x)を返す int lower_bound(T w) { if (w <= 0) return 0; T x = 0; for (int i = p; i; i /= 2) { if (i + x <= n && d[i + x] < w) { w -= d[i + x]; x += i; } } return x; } }; int main() { ios; LL(n, q); VEC(ll, c, n); REP(i, n) c[i]--; V<> last(n, -1); BIT<ll> BT(n); V<pair<pair<int, int>, int>> vec(q); REP(i, q) { int l, r; cin >> l >> r; l--; r--; vec[i] = {{r, l}, i}; } sort(all(vec)); V<> ans(q); ll now = -1; REP(i, q) { ll r = vec[i].first.first; for (int i = now + 1; i <= r; i++) { if (last[c[i]] != -1) BT.add(last[c[i]], -1); last[c[i]] = i; BT.add(last[c[i]], 1); } ans[vec[i].second] = BT.sum(vec[i].first.second, vec[i].first.first + 1); } REP(i, q) print(ans[i]); }
#include <bits/stdc++.h> using namespace std; #pragma region Macros #define ios \ ios::sync_with_stdio(false); \ cin.tie(nullptr); #define VEC(type, name, size) \ V<type> name(size); \ IN(name) #define VVEC(type, name, h, w) \ VV<type> name(h, V<type>(w)); \ IN(name) #define INT(...) \ int __VA_ARGS__; \ IN(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ IN(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ IN(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ IN(__VA_ARGS__) #define DOUBLE(...) \ DOUBLE __VA_ARGS__; \ IN(__VA_ARGS__) #define LD(...) \ LD __VA_ARGS__; \ IN(__VA_ARGS__) template <class T> void scan(T &a) { cin >> a; } template <class T> void scan(vector<T> &a) { for (auto &i : a) scan(i); } template <class T, class L> void scan(pair<T, L> &p) { scan(p.first); scan(p.second); } void IN() {} template <class Head, class... Tail> void IN(Head &head, Tail &...tail) { scan(head); IN(tail...); } template <class T> inline void print(T x) { cout << x << '\n'; } #define ll long long #define ld long double #define FOR(i, l, r) for (ll i = (l); i < (r); ++i) #define REP(i, n) FOR(i, 0, n) #define REPS(i, n) FOR(i, 1, n + 1) #define RFOR(i, l, r) for (ll i = (l); i >= (r); --i) #define RREP(i, n) RFOR(i, n - 1, 0) #define RREPS(i, n) RFOR(i, n, 1) #define pb push_back #define eb emplace_back #define SZ(x) ((ll)(x).size()) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() template <class T = ll> using V = vector<T>; template <class T = ll> using VV = V<V<T>>; template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } inline void Yes(bool b = true) { cout << (b ? "Yes" : "No") << '\n'; } inline void YES(bool b = true) { cout << (b ? "YES" : "NO") << '\n'; } inline void err(bool b = true) { if (b) { cout << -1 << '\n'; exit(0); } } template <class T> inline void fin(bool b = true, T e = 0) { if (b) { cout << e << '\n'; exit(0); } } template <class T> T Roundup_div(T x, T y) { return (x + (y - 1)) / y; } template <typename T> T pow(T a, long long n, T e = 1) { T ret = e; while (n) { if (n & 1) ret *= a; a *= a; n >>= 1; } return ret; } const ll INF = 1e18; #pragma endregion // Binary Indexed Tree (Fenwick Tree) template <typename T> struct BIT { int n, p; vector<T> d; BIT(int n = 0) : n(n), d(n + 1) { p = 1; while (p < n) p *= 2; } // 更新 void add(int i, T x = 1) { for (i++; i <= n; i += i & -i) d[i] += x; } //[0,i)の和 T sum(int i) { T res = 0; for (; i; i -= i & -i) res += d[i]; return res; } //[l,r)の和 T sum(int l, int r) { return sum(r) - sum(l); } // v0+v1+…vx>=mを満たすmin(x)を返す int lower_bound(T w) { if (w <= 0) return 0; T x = 0; for (int i = p; i; i /= 2) { if (i + x <= n && d[i + x] < w) { w -= d[i + x]; x += i; } } return x; } }; int main() { ios; LL(n, q); VEC(ll, c, n); REP(i, n) c[i]--; V<> last(n, -1); BIT<ll> BT(n); V<pair<pair<int, int>, int>> vec(q); REP(i, q) { int l, r; cin >> l >> r; l--; r--; vec[i] = {{r, l}, i}; } sort(all(vec)); V<> ans(q); ll now = -1; REP(i, q) { ll r = vec[i].first.first; for (int i = now + 1; i <= r; i++) { if (last[c[i]] != -1) BT.add(last[c[i]], -1); last[c[i]] = i; BT.add(last[c[i]], 1); now = r; } ans[vec[i].second] = BT.sum(vec[i].first.second, vec[i].first.first + 1); } REP(i, q) print(ans[i]); }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<ll>; using vvi = vector<vi>; using pll = pair<ll, ll>; #define all(a) a.begin(), a.end() #define pb push_back #define mp make_pair template <typename T> using vv = vector<vector<T>>; void solve() { int n, q; cin >> n >> q; vi a(n); for (auto &i : a) cin >> i, i--; ; vector<pair<pll, int>> qr(q); int cc = 0; for (auto &e : qr) cin >> e.first.first >> e.first.second, e.first.first--, e.first.second--, e.second = cc++; sort(all(qr), [&](pair<pll, int> aa, pair<pll, int> bb) { auto a = aa.first, b = bb.first; if (a.first / 1000 != b.first / 1000) return a.first / 1000 < b.first; return a.second < b.second; }); vi cnt(n); ll tmp = 0; ll l = 0, r = -1; vi res(q); for (auto e : qr) { ll nl, nr; tie(nl, nr) = e.first; while (r < nr) { r++; if (cnt[a[r]]++ == 0) tmp++; } while (l > nl) { l--; if (cnt[a[l]]++ == 0) tmp++; } while (r > nr) { if (--cnt[a[r--]] == 0) tmp--; } while (l < nl) { if (--cnt[a[l++]] == 0) tmp--; } res[e.second] = tmp; } for (auto i : res) cout << i << '\n'; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); }
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<ll>; using vvi = vector<vi>; using pll = pair<ll, ll>; #define all(a) a.begin(), a.end() #define pb push_back #define mp make_pair template <typename T> using vv = vector<vector<T>>; void solve() { int n, q; cin >> n >> q; vi a(n); for (auto &i : a) cin >> i, i--; ; vector<pair<pll, int>> qr(q); int cc = 0; for (auto &e : qr) cin >> e.first.first >> e.first.second, e.first.first--, e.first.second--, e.second = cc++; sort(all(qr), [&](pair<pll, int> aa, pair<pll, int> bb) { auto a = aa.first, b = bb.first; if (a.first / 1000 != b.first / 1000) return a.first / 1000 < b.first / 1000; return a.second < b.second; }); vi cnt(n); ll tmp = 0; ll l = 0, r = -1; vi res(q); for (auto e : qr) { ll nl, nr; tie(nl, nr) = e.first; while (r < nr) { r++; if (cnt[a[r]]++ == 0) tmp++; } while (l > nl) { l--; if (cnt[a[l]]++ == 0) tmp++; } while (r > nr) { if (--cnt[a[r--]] == 0) tmp--; } while (l < nl) { if (--cnt[a[l++]] == 0) tmp--; } res[e.second] = tmp; } for (auto i : res) cout << i << '\n'; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); }
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p02599
C++
Runtime Error
// Author: HarshKumar #include <bits/stdc++.h> using namespace std; #define ll int const ll N = 1e6 + 1; ll root[N], L[16 * N], R[16 * N], sum[16 * N]; ll rt = 1, sz = 1; ll lpos[N]; ll copy(ll v, ll &u) { L[sz] = L[v]; R[sz] = R[v]; sum[sz] = sum[v]; return u = sz++; } void make_root() { copy(root[rt - 1], root[rt]); rt++; } void add(ll pos, ll x, ll v = root[rt - 1], ll l = 0, ll r = N) { sum[v] += x; if (r - l == 1) return; ll m = (l + r) / 2; if (pos < m) add(pos, x, copy(L[v], L[v]), l, m); else add(pos, x, copy(R[v], R[v]), m, r); } ll get(ll a, ll b, ll v, ll l = 0, ll r = N) { if (a <= l && r <= b) return sum[v]; if (r <= a || b <= l) return 0; ll m = (l + r) / 2; return get(a, b, L[v], l, m) + get(a, b, R[v], m, r); } int main() { ios::sync_with_stdio(false), cin.tie(nullptr); rt = sz = 1; ll n, q; cin >> n >> q; for (ll i = 1; i <= n; i++) { ll t; cin >> t; make_root(); add(lpos[t], -1); lpos[t] = i; add(lpos[t], 1); } while (q--) { ll l, r; cin >> l >> r; cout << get(l, r + 1, root[r]) << '\n'; } }
// Author: HarshKumar #include <bits/stdc++.h> using namespace std; #define ll int const ll N = 15e5 + 1; ll root[N], L[16 * N], R[16 * N], sum[16 * N]; ll rt = 1, sz = 1; ll lpos[N]; ll copy(ll v, ll &u) { L[sz] = L[v]; R[sz] = R[v]; sum[sz] = sum[v]; return u = sz++; } void make_root() { copy(root[rt - 1], root[rt]); rt++; } void add(ll pos, ll x, ll v = root[rt - 1], ll l = 0, ll r = N) { sum[v] += x; if (r - l == 1) return; ll m = (l + r) / 2; if (pos < m) add(pos, x, copy(L[v], L[v]), l, m); else add(pos, x, copy(R[v], R[v]), m, r); } ll get(ll a, ll b, ll v, ll l = 0, ll r = N) { if (a <= l && r <= b) return sum[v]; if (r <= a || b <= l) return 0; ll m = (l + r) / 2; return get(a, b, L[v], l, m) + get(a, b, R[v], m, r); } int main() { ios::sync_with_stdio(false), cin.tie(nullptr); rt = sz = 1; ll n, q; cin >> n >> q; for (ll i = 1; i <= n; i++) { ll t; cin >> t; make_root(); add(lpos[t], -1); lpos[t] = i; add(lpos[t], 1); } while (q--) { ll l, r; cin >> l >> r; cout << get(l, r + 1, root[r]) << '\n'; } }
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-11
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; const int N = 200010; template <typename T> void inline read(T &x) { T f = 1; char ch = getchar(); for (; '0' > ch || ch > '9'; ch = getchar()) if (ch == '-') f = -1; for (x = 0; '0' <= ch && ch <= '9'; ch = getchar()) x = x * 10 + ch - '0'; x *= f; } template <typename T> void write(T x) { if (x > 9) write(x / 10); putchar(x % 10 + '0'); } template <typename T> void print(T x) { if (x < 0) putchar('-'), x = -x; write(x); putchar('\n'); } int n, m; int col[N]; int len, bl[N]; int ans[N]; struct node { int l, r, id; friend bool operator<(node a, node b) { if (bl[a.l] != bl[b.l]) return bl[a.l] < bl[b.l]; if (bl[a.l] % 2) return a.r < b.r; return a.r > b.r; } } q[N]; int nowl = 1, nowr = 0, nowans; int cnt[1000010]; void add(int c) { if (!cnt[c]) nowans++; cnt[c]++; } void del(int c) { cnt[c]--; if (!cnt[c]) nowans--; } int main() { read(n); read(m); for (int i = 1; i <= n; i++) read(col[i]); len = pow(n, 1.0 / 2.0); for (int i = 1; i <= n; i++) bl[i] = (i - 1) / len + 1; for (int i = 1; i <= m; i++) { read(q[i].l); read(q[i].r); q[i].id = i; } sort(q + 1, q + 1 + m); for (int i = 1; i <= m; i++) { while (nowl > q[i].l) add(col[--nowl]); while (nowr < q[i].r) add(col[++nowr]); while (nowl < q[i].l) del(col[nowl++]); while (nowr > q[i].r) del(col[nowr--]); ans[q[i].id] = nowans; } for (int i = 1; i <= m; i++) print(ans[i]); return 0; }
#include <bits/stdc++.h> using namespace std; const int N = 500010; template <typename T> void inline read(T &x) { T f = 1; char ch = getchar(); for (; '0' > ch || ch > '9'; ch = getchar()) if (ch == '-') f = -1; for (x = 0; '0' <= ch && ch <= '9'; ch = getchar()) x = x * 10 + ch - '0'; x *= f; } template <typename T> void write(T x) { if (x > 9) write(x / 10); putchar(x % 10 + '0'); } template <typename T> void print(T x) { if (x < 0) putchar('-'), x = -x; write(x); putchar('\n'); } int n, m; int col[N]; int len, bl[N]; int ans[N]; struct node { int l, r, id; friend bool operator<(node a, node b) { if (bl[a.l] != bl[b.l]) return bl[a.l] < bl[b.l]; if (bl[a.l] % 2) return a.r < b.r; return a.r > b.r; } } q[N]; int nowl = 1, nowr = 0, nowans; int cnt[1000010]; void add(int c) { if (!cnt[c]) nowans++; cnt[c]++; } void del(int c) { cnt[c]--; if (!cnt[c]) nowans--; } int main() { read(n); read(m); for (int i = 1; i <= n; i++) read(col[i]); len = pow(n, 1.0 / 2.0); for (int i = 1; i <= n; i++) bl[i] = (i - 1) / len + 1; for (int i = 1; i <= m; i++) { read(q[i].l); read(q[i].r); q[i].id = i; } sort(q + 1, q + 1 + m); for (int i = 1; i <= m; i++) { while (nowl > q[i].l) add(col[--nowl]); while (nowr < q[i].r) add(col[++nowr]); while (nowl < q[i].l) del(col[nowl++]); while (nowr > q[i].r) del(col[nowr--]); ans[q[i].id] = nowans; } for (int i = 1; i <= m; i++) print(ans[i]); return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> using namespace std; // #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") // using namespace __gnu_pbds; #define fastio() \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define pb push_back #define show(x) cout << (#x) << " : " << x << endl; #define ll long long #define ld long double #define fill(a, val) memset(a, val, sizeof(a)) #define mp make_pair #define ff first #define ss second #define pii pair<ll, ll> #define sq(x) ((x) * (x)) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define endl "\n" #define int long long #define printclock \ cerr << "Time : " << 1000 * (ld)clock() / (ld)CLOCKS_PER_SEC << "ms\n"; const ll MOD = 1000 * 1000 * 1000 + 7; const ll INF = 1ll * 1000 * 1000 * 1000 * 1000 * 1000 * 1000 + 7; const ll MOD2 = 998244353; const ll N = 5000 * 100 + 10; const ll N2 = 70; const ld PI = 3.141592653589793; // template<class T> using oset=tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; ll gcd(ll a, ll b) { if (!b) return a; return gcd(b, a % b); } ll power(ll x, ll y, ll p = LLONG_MAX) { ll res = 1; x %= p; while (y > 0) { if (y & 1) res = (res * x) % p; y = y >> 1; x = (x * x) % p; } return res; } ll lcm(ll a, ll b) { return (a * b) / gcd(a, b); } int freq[N] = {0}; int block; struct Query { int L, R, index, result; }; bool compare(Query x, Query y) { if (x.L / block != y.L / block) return x.L / block < y.L / block; return x.R < y.R; } bool compare1(Query x, Query y) { return x.index < y.index; } void queryResults(int a[], int n, Query q[], int m) { // Find block size block = (int)sqrt(n); // Sort all queries so that queries of same // blocks are arranged together. sort(q, q + m, compare); // Initialize current L, current R and current // different elements int currL = 0, currR = 0; int curr_Diff_elements = 0; // Traverse through all queries for (int i = 0; i < m; i++) { // L and R values of current range int L = q[i].L, R = q[i].R; while (currL < L) { // element a[currL] is removed freq[a[currL]]--; if (freq[a[currL]] == 0) curr_Diff_elements--; currL++; } // Add Elements of current Range // Note:- during addition of the left // side elements we have to add currL-1 // because currL is already in range while (currL > L) { freq[a[currL - 1]]++; // include a element if it occurs first time if (freq[a[currL - 1]] == 1) curr_Diff_elements++; currL--; } while (currR <= R) { freq[a[currR]]++; // include a element if it occurs first time if (freq[a[currR]] == 1) curr_Diff_elements++; currR++; } while (currR > R + 1) { // element a[currL] is removed freq[a[currR - 1]]--; // if occurrence of a number is reduced // to zero remove it from list of // different elements if (freq[a[currR - 1]] == 0) curr_Diff_elements--; currR--; } q[i].result = curr_Diff_elements; } } // print the result of all range queries in // initial order of queries void printResults(Query q[], int m) { sort(q, q + m, compare1); for (int i = 0; i < m; i++) { cout << q[i].result << endl; } } signed main() { fastio(); // cout<<fixed<<setprecision(20); // CHECK for LONG LONG and LONG DOUBLE //*comment for all except cc/cf #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif //*/ int n, q; cin >> n >> q; int a[n]; for (int i = 0; i < n; ++i) { cin >> a[i]; } int m = q; int i = 0; Query qq[q]; while (q--) { int l, r; cin >> l >> r; l--; r--; qq[i].L = l; qq[i].R = r; qq[i].index = i; i++; } queryResults(a, n, qq, m); printResults(qq, m); printclock; return 0; }
#include <bits/stdc++.h> // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> using namespace std; // #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") // using namespace __gnu_pbds; #define fastio() \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define pb push_back #define show(x) cout << (#x) << " : " << x << endl; #define ll long long #define ld long double #define fill(a, val) memset(a, val, sizeof(a)) #define mp make_pair #define ff first #define ss second #define pii pair<ll, ll> #define sq(x) ((x) * (x)) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define endl "\n" #define printclock \ cerr << "Time : " << 1000 * (ld)clock() / (ld)CLOCKS_PER_SEC << "ms\n"; const ll MOD = 1000 * 1000 * 1000 + 7; const ll INF = 1ll * 1000 * 1000 * 1000 * 1000 * 1000 * 1000 + 7; const ll MOD2 = 998244353; const ll N = 5000 * 100 + 10; const ll N2 = 70; const ld PI = 3.141592653589793; // template<class T> using oset=tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; ll gcd(ll a, ll b) { if (!b) return a; return gcd(b, a % b); } ll power(ll x, ll y, ll p = LLONG_MAX) { ll res = 1; x %= p; while (y > 0) { if (y & 1) res = (res * x) % p; y = y >> 1; x = (x * x) % p; } return res; } ll lcm(ll a, ll b) { return (a * b) / gcd(a, b); } int freq[N] = {0}; int block; struct Query { int L, R, index, result; }; bool compare(Query x, Query y) { if (x.L / block != y.L / block) return x.L / block < y.L / block; return x.R < y.R; } bool compare1(Query x, Query y) { return x.index < y.index; } void queryResults(int a[], int n, Query q[], int m) { // Find block size block = (int)sqrt(n); // Sort all queries so that queries of same // blocks are arranged together. sort(q, q + m, compare); // Initialize current L, current R and current // different elements int currL = 0, currR = 0; int curr_Diff_elements = 0; // Traverse through all queries for (int i = 0; i < m; i++) { // L and R values of current range int L = q[i].L, R = q[i].R; while (currL < L) { // element a[currL] is removed freq[a[currL]]--; if (freq[a[currL]] == 0) curr_Diff_elements--; currL++; } // Add Elements of current Range // Note:- during addition of the left // side elements we have to add currL-1 // because currL is already in range while (currL > L) { freq[a[currL - 1]]++; // include a element if it occurs first time if (freq[a[currL - 1]] == 1) curr_Diff_elements++; currL--; } while (currR <= R) { freq[a[currR]]++; // include a element if it occurs first time if (freq[a[currR]] == 1) curr_Diff_elements++; currR++; } while (currR > R + 1) { // element a[currL] is removed freq[a[currR - 1]]--; // if occurrence of a number is reduced // to zero remove it from list of // different elements if (freq[a[currR - 1]] == 0) curr_Diff_elements--; currR--; } q[i].result = curr_Diff_elements; } } // print the result of all range queries in // initial order of queries void printResults(Query q[], int m) { sort(q, q + m, compare1); for (int i = 0; i < m; i++) { cout << q[i].result << endl; } } signed main() { fastio(); // cout<<fixed<<setprecision(20); // CHECK for LONG LONG and LONG DOUBLE //*comment for all except cc/cf #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif //*/ int n, q; cin >> n >> q; int a[n]; for (int i = 0; i < n; ++i) { cin >> a[i]; } int m = q; int i = 0; Query qq[q]; while (q--) { int l, r; cin >> l >> r; l--; r--; qq[i].L = l; qq[i].R = r; qq[i].index = i; i++; } queryResults(a, n, qq, m); printResults(qq, m); printclock; return 0; }
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TLE
p02599
C++
Time Limit Exceeded
// Program to compute sum of ranges for different range // queries #include <bits/stdc++.h> using namespace std; #define ll long long int ll block, n, m; ll a[500001]; struct Query { ll L, R, i; }; Query q[500001]; bool compare(Query x, Query y) { if (x.L / block != y.L / block) return x.L / block < y.L / block; return x.R < y.R; } void queryResults() { block = (ll)sqrt(n); sort(q, q + m, compare); ll currL = 0, currR = 0; ll currSum = 0; ll ans = 0; ll aa[m]; ll f[500001] = {0}; for (ll i = 0; i < m; i++) { ll L = q[i].L, R = q[i].R; while (currL < L) { f[a[currL]]--; if (f[a[currL]] == 0) ans--; currL++; } while (currL > L) { if (f[a[currL - 1]] == 0) ans++; f[a[currL - 1]]++; currL--; } while (currR <= R) { if (f[a[currR]] == 0) ans++; f[a[currR]]++; currR++; } while (currR > R + 1) { f[a[currR - 1]]--; if (f[a[currR - 1]] == 0) ans--; currR--; } aa[q[i].i] = ans; } for (ll i = 0; i < m; i++) cout << aa[i] << endl; } // Driver program int main() { ll i, j, k; cin >> n >> m; for (i = 0; i < n; i++) cin >> a[i]; for (i = 0; i < m; i++) { cin >> j >> k; q[i].L = j - 1; q[i].R = k - 1; q[i].i = i; } queryResults(); }
// Program to compute sum of ranges for different range // queries #include <bits/stdc++.h> using namespace std; #define ll int ll block, n, m; ll a[500001]; struct Query { ll L, R, i; }; Query q[500001]; bool compare(Query x, Query y) { if (x.L / block != y.L / block) return x.L / block < y.L / block; return x.R < y.R; } void queryResults() { block = (ll)sqrt(n); sort(q, q + m, compare); ll currL = 0, currR = 0; ll currSum = 0; ll ans = 0; ll aa[m]; ll f[500001] = {0}; for (ll i = 0; i < m; i++) { ll L = q[i].L, R = q[i].R; while (currL < L) { f[a[currL]]--; if (f[a[currL]] == 0) ans--; currL++; } while (currL > L) { if (f[a[currL - 1]] == 0) ans++; f[a[currL - 1]]++; currL--; } while (currR <= R) { if (f[a[currR]] == 0) ans++; f[a[currR]]++; currR++; } while (currR > R + 1) { f[a[currR - 1]]--; if (f[a[currR - 1]] == 0) ans--; currR--; } aa[q[i].i] = ans; } for (ll i = 0; i < m; i++) cout << aa[i] << endl; } // Driver program int main() { ll i, j, k; cin >> n >> m; for (i = 0; i < n; i++) cin >> a[i]; for (i = 0; i < m; i++) { cin >> j >> k; q[i].L = j - 1; q[i].R = k - 1; q[i].i = i; } queryResults(); }
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TLE
p02599
C++
Runtime Error
/* #region header */ #ifdef LOCAL #include "/Users/takakurashokichi/Desktop/atcoder/cxx-prettyprint-master/prettyprint.hpp" #define debug(x) cout << x << endl #else #define debug(...) 42 #endif #pragma GCC optimize("Ofast") #include <bits/stdc++.h> // types using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; typedef pair<ll, ll> Pl; typedef pair<int, int> Pi; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<char> vc; template <typename T> using mat = vector<vector<T>>; typedef vector<vector<int>> vvi; typedef vector<vector<long long>> vvl; typedef vector<vector<char>> vvc; template <int mod> struct modint { int x; modint() : x(0) {} modint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} modint &operator+=(const modint &p) { if ((x += p.x) >= mod) x -= mod; return *this; } modint &operator-=(const modint &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } modint &operator*=(const modint &p) { x = (int)(1LL * x * p.x % mod); return *this; } modint &operator/=(const modint &p) { *this *= p.inverse(); return *this; } modint operator-() const { return modint(-x); } modint operator+(const modint &p) const { return modint(*this) += p; } modint operator-(const modint &p) const { return modint(*this) -= p; } modint operator*(const modint &p) const { return modint(*this) *= p; } modint operator/(const modint &p) const { return modint(*this) /= p; } bool operator==(const modint &p) const { return x == p.x; } bool operator!=(const modint &p) const { return x != p.x; } modint inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return modint(u); } modint pow(int64_t n) const { modint ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const modint &p) { return os << p.x; } friend istream &operator>>(istream &is, modint &a) { int64_t t; is >> t; a = modint<mod>(t); return (is); } static int get_mod() { return mod; } }; // abreviations #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define rep_(i, a_, b_, a, b, ...) \ for (int i = (a), max_i = (b); i < max_i; i++) #define rep(i, ...) rep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define rrep_(i, a_, b_, a, b, ...) \ for (int i = (b - 1), min_i = (a); i >= min_i; i--) #define rrep(i, ...) rrep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define SZ(x) ((int)(x).size()) #define pb(x) push_back(x) #define eb(x) emplace_back(x) #define mp make_pair #define print(x) cout << x << endl #define vprint(x) \ rep(i, x.size()) cout << x[i] << ' '; \ cout << endl #define vsum(x) accumulate(all(x), 0LL) #define vmax(a) *max_element(all(a)) #define vmin(a) *min_element(all(a)) #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) // functions // gcd(0, x) fails. ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } ll lcm(ll a, ll b) { return a / gcd(a, b) * b; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> T mypow(T x, ll n) { T ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; } return ret; } ll modpow(ll x, ll n, const ll mod) { ll ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; x %= mod; ret %= mod; } return ret; } template <typename T> uint64_t my_rand(void) { static uint64_t x = 88172645463325252ULL; x = x ^ (x << 13); x = x ^ (x >> 7); return x = x ^ (x << 17); } int popcnt(ull x) { return __builtin_popcountll(x); } // graph template template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } bool operator<(const edge<T> &r) const { return cost < r.cost; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T>>; template <typename T> using WeightedGraph = vector<Edges<T>>; using UnWeightedGraph = vector<vector<int>>; struct Timer { clock_t start_time; void start() { start_time = clock(); } int lap() { // return x ms. return (clock() - start_time) * 1000 / CLOCKS_PER_SEC; } }; /* #endregion*/ // constant #define inf 1000000005 #define INF 4000000004000000000LL #define mod 1000000007LL #define endl '\n' typedef modint<mod> mint; const long double eps = 0.000001; const long double PI = 3.141592653589793; // library struct Mo { int width; vector<int> left, right, order; vector<bool> v; Mo(int N, int Q) : width((int)sqrt(N)), order(Q), v(N) { iota(begin(order), end(order), 0); } void add(int l, int r) { /* [l, r) */ left.emplace_back(l); right.emplace_back(r); } template <typename ADD, typename DEL, typename REM> void run(const ADD &add, const DEL &del, const REM &rem) { assert(left.size() == order.size()); sort(begin(order), end(order), [&](int a, int b) { int ablock = left[a] / width, bblock = left[b] / width; if (ablock != bblock) return ablock < bblock; if (ablock & 1) return right[a] < right[b]; return right[a] > right[b]; }); int nl = 0, nr = 0; auto push = [&](int idx) { v[idx].flip(); if (v[idx]) add(idx); else del(idx); }; for (auto idx : order) { while (nl > left[idx]) push(--nl); while (nr < right[idx]) push(nr++); while (nl < left[idx]) push(nl++); while (nr > right[idx]) push(--nr); rem(idx); } } }; int main() { cin.tie(0); ios::sync_with_stdio(0); cout << setprecision(20); vi cnt(50001); int res = 0; int n, q; scanf("%d", &n); scanf("%d", &q); vi c(n); rep(i, n) scanf("%d", &c[i]); Mo mo(n, q); vi ans(q); rep(i, q) { int l, r; scanf("%d", &l); scanf("%d", &r); mo.add(l - 1, r); } auto f = [&](int i) { if (!cnt[c[i]]) ++res; ++cnt[c[i]]; }; auto g = [&](int i) { if (cnt[c[i]]) --cnt[c[i]]; if (!cnt[c[i]]) --res; }; auto h = [&](int i) { ans[i] = res; }; mo.run(f, g, h); rep(i, q) printf("%d\n", ans[i]); }
/* #region header */ #ifdef LOCAL #include "/Users/takakurashokichi/Desktop/atcoder/cxx-prettyprint-master/prettyprint.hpp" #define debug(x) cout << x << endl #else #define debug(...) 42 #endif #pragma GCC optimize("Ofast") #include <bits/stdc++.h> // types using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; typedef pair<ll, ll> Pl; typedef pair<int, int> Pi; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<char> vc; template <typename T> using mat = vector<vector<T>>; typedef vector<vector<int>> vvi; typedef vector<vector<long long>> vvl; typedef vector<vector<char>> vvc; template <int mod> struct modint { int x; modint() : x(0) {} modint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} modint &operator+=(const modint &p) { if ((x += p.x) >= mod) x -= mod; return *this; } modint &operator-=(const modint &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } modint &operator*=(const modint &p) { x = (int)(1LL * x * p.x % mod); return *this; } modint &operator/=(const modint &p) { *this *= p.inverse(); return *this; } modint operator-() const { return modint(-x); } modint operator+(const modint &p) const { return modint(*this) += p; } modint operator-(const modint &p) const { return modint(*this) -= p; } modint operator*(const modint &p) const { return modint(*this) *= p; } modint operator/(const modint &p) const { return modint(*this) /= p; } bool operator==(const modint &p) const { return x == p.x; } bool operator!=(const modint &p) const { return x != p.x; } modint inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return modint(u); } modint pow(int64_t n) const { modint ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const modint &p) { return os << p.x; } friend istream &operator>>(istream &is, modint &a) { int64_t t; is >> t; a = modint<mod>(t); return (is); } static int get_mod() { return mod; } }; // abreviations #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define rep_(i, a_, b_, a, b, ...) \ for (int i = (a), max_i = (b); i < max_i; i++) #define rep(i, ...) rep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define rrep_(i, a_, b_, a, b, ...) \ for (int i = (b - 1), min_i = (a); i >= min_i; i--) #define rrep(i, ...) rrep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define SZ(x) ((int)(x).size()) #define pb(x) push_back(x) #define eb(x) emplace_back(x) #define mp make_pair #define print(x) cout << x << endl #define vprint(x) \ rep(i, x.size()) cout << x[i] << ' '; \ cout << endl #define vsum(x) accumulate(all(x), 0LL) #define vmax(a) *max_element(all(a)) #define vmin(a) *min_element(all(a)) #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) // functions // gcd(0, x) fails. ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } ll lcm(ll a, ll b) { return a / gcd(a, b) * b; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> T mypow(T x, ll n) { T ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; } return ret; } ll modpow(ll x, ll n, const ll mod) { ll ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; x %= mod; ret %= mod; } return ret; } template <typename T> uint64_t my_rand(void) { static uint64_t x = 88172645463325252ULL; x = x ^ (x << 13); x = x ^ (x >> 7); return x = x ^ (x << 17); } int popcnt(ull x) { return __builtin_popcountll(x); } // graph template template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } bool operator<(const edge<T> &r) const { return cost < r.cost; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T>>; template <typename T> using WeightedGraph = vector<Edges<T>>; using UnWeightedGraph = vector<vector<int>>; struct Timer { clock_t start_time; void start() { start_time = clock(); } int lap() { // return x ms. return (clock() - start_time) * 1000 / CLOCKS_PER_SEC; } }; /* #endregion*/ // constant #define inf 1000000005 #define INF 4000000004000000000LL #define mod 1000000007LL #define endl '\n' typedef modint<mod> mint; const long double eps = 0.000001; const long double PI = 3.141592653589793; // library struct Mo { int width; vector<int> left, right, order; vector<bool> v; Mo(int N, int Q) : width((int)sqrt(N)), order(Q), v(N) { iota(begin(order), end(order), 0); } void add(int l, int r) { /* [l, r) */ left.emplace_back(l); right.emplace_back(r); } template <typename ADD, typename DEL, typename REM> void run(const ADD &add, const DEL &del, const REM &rem) { assert(left.size() == order.size()); sort(begin(order), end(order), [&](int a, int b) { int ablock = left[a] / width, bblock = left[b] / width; if (ablock != bblock) return ablock < bblock; if (ablock & 1) return right[a] < right[b]; return right[a] > right[b]; }); int nl = 0, nr = 0; auto push = [&](int idx) { v[idx].flip(); if (v[idx]) add(idx); else del(idx); }; for (auto idx : order) { while (nl > left[idx]) push(--nl); while (nr < right[idx]) push(nr++); while (nl < left[idx]) push(nl++); while (nr > right[idx]) push(--nr); rem(idx); } } }; int main() { cin.tie(0); ios::sync_with_stdio(0); cout << setprecision(20); vi cnt(500001); int res = 0; int n, q; scanf("%d", &n); scanf("%d", &q); vi c(n); rep(i, n) scanf("%d", &c[i]); Mo mo(n, q); vi ans(q); rep(i, q) { int l, r; scanf("%d", &l); scanf("%d", &r); mo.add(l - 1, r); } auto f = [&](int i) { if (!cnt[c[i]]) ++res; ++cnt[c[i]]; }; auto g = [&](int i) { if (cnt[c[i]]) --cnt[c[i]]; if (!cnt[c[i]]) --res; }; auto h = [&](int i) { ans[i] = res; }; mo.run(f, g, h); rep(i, q) printf("%d\n", ans[i]); }
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Time Limit Exceeded
/* #region header */ #ifdef LOCAL #include "/Users/takakurashokichi/Desktop/atcoder/cxx-prettyprint-master/prettyprint.hpp" #define debug(x) cout << x << endl #else #define debug(...) 42 #endif #pragma GCC optimize("Ofast") #include <bits/stdc++.h> // types using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; typedef pair<ll, ll> Pl; typedef pair<int, int> Pi; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<char> vc; template <typename T> using mat = vector<vector<T>>; typedef vector<vector<int>> vvi; typedef vector<vector<long long>> vvl; typedef vector<vector<char>> vvc; template <int mod> struct modint { int x; modint() : x(0) {} modint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} modint &operator+=(const modint &p) { if ((x += p.x) >= mod) x -= mod; return *this; } modint &operator-=(const modint &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } modint &operator*=(const modint &p) { x = (int)(1LL * x * p.x % mod); return *this; } modint &operator/=(const modint &p) { *this *= p.inverse(); return *this; } modint operator-() const { return modint(-x); } modint operator+(const modint &p) const { return modint(*this) += p; } modint operator-(const modint &p) const { return modint(*this) -= p; } modint operator*(const modint &p) const { return modint(*this) *= p; } modint operator/(const modint &p) const { return modint(*this) /= p; } bool operator==(const modint &p) const { return x == p.x; } bool operator!=(const modint &p) const { return x != p.x; } modint inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return modint(u); } modint pow(int64_t n) const { modint ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const modint &p) { return os << p.x; } friend istream &operator>>(istream &is, modint &a) { int64_t t; is >> t; a = modint<mod>(t); return (is); } static int get_mod() { return mod; } }; // abreviations #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define rep_(i, a_, b_, a, b, ...) for (ll i = (a), max_i = (b); i < max_i; i++) #define rep(i, ...) rep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define rrep_(i, a_, b_, a, b, ...) \ for (ll i = (b - 1), min_i = (a); i >= min_i; i--) #define rrep(i, ...) rrep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define SZ(x) ((int)(x).size()) #define pb(x) push_back(x) #define eb(x) emplace_back(x) #define mp make_pair #define print(x) cout << x << endl #define vprint(x) \ rep(i, x.size()) cout << x[i] << ' '; \ cout << endl #define vsum(x) accumulate(all(x), 0LL) #define vmax(a) *max_element(all(a)) #define vmin(a) *min_element(all(a)) #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) // functions // gcd(0, x) fails. ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } ll lcm(ll a, ll b) { return a / gcd(a, b) * b; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> T mypow(T x, ll n) { T ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; } return ret; } ll modpow(ll x, ll n, const ll mod) { ll ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; x %= mod; ret %= mod; } return ret; } template <typename T> uint64_t my_rand(void) { static uint64_t x = 88172645463325252ULL; x = x ^ (x << 13); x = x ^ (x >> 7); return x = x ^ (x << 17); } int popcnt(ull x) { return __builtin_popcountll(x); } // graph template template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } bool operator<(const edge<T> &r) const { return cost < r.cost; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T>>; template <typename T> using WeightedGraph = vector<Edges<T>>; using UnWeightedGraph = vector<vector<int>>; struct Timer { clock_t start_time; void start() { start_time = clock(); } int lap() { // return x ms. return (clock() - start_time) * 1000 / CLOCKS_PER_SEC; } }; /* #endregion*/ // constant #define inf 1000000005 #define INF 4000000004000000000LL #define mod 1000000007LL #define endl '\n' typedef modint<mod> mint; const long double eps = 0.000001; const long double PI = 3.141592653589793; // library template <typename T> struct BIT { vector<T> data; BIT(int sz) { data.assign(++sz, 0); } //[0, k) T sum(int k) { T ret = 0; for (; k > 0; k -= k & -k) ret += data[k]; return (ret); } void add(int k, T x) { for (++k; k < data.size(); k += k & -k) data[k] += x; } // 0-indexedでk番目の値を返す。 int search(long long k) { ++k; int res = 0; int N = 1; while (N < (int)data.size()) N *= 2; for (int i = N / 2; i > 0; i /= 2) { if (res + i < (int)data.size() && data[res + i] < k) { k = k - data[res + i]; res = res + i; } } return res; } // for debug void show() { rep(i, SZ(data) - 1) cout << sum(i + 1) - sum(i) << ' '; cout << endl; } }; int main() { cin.tie(0); ios::sync_with_stdio(0); cout << setprecision(20); int n, q; cin >> n >> q; vi c(n); rep(i, n) cin >> c[i]; vi ans(q); vi l(q), r(q); rep(i, q) { cin >> l[i] >> r[i]; l[i]--; } vi id(q); iota(all(id), 0); sort(all(id), [&](int i, int j) { return r[i] < r[j]; }); vi last(vmax(c) + 1, -1); BIT<int> bit(n); int now = 0; for (int i : id) { rep(j, now, r[i]) { if (last[c[j]] >= 0) bit.add(last[c[j]], -1); last[c[j]] = j; bit.add(j, 1); } ans[i] = bit.sum(r[i]) - bit.sum(l[i]); } rep(i, q) print(ans[i]); }
/* #region header */ #ifdef LOCAL #include "/Users/takakurashokichi/Desktop/atcoder/cxx-prettyprint-master/prettyprint.hpp" #define debug(x) cout << x << endl #else #define debug(...) 42 #endif #pragma GCC optimize("Ofast") #include <bits/stdc++.h> // types using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; typedef pair<ll, ll> Pl; typedef pair<int, int> Pi; typedef vector<ll> vl; typedef vector<int> vi; typedef vector<char> vc; template <typename T> using mat = vector<vector<T>>; typedef vector<vector<int>> vvi; typedef vector<vector<long long>> vvl; typedef vector<vector<char>> vvc; template <int mod> struct modint { int x; modint() : x(0) {} modint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} modint &operator+=(const modint &p) { if ((x += p.x) >= mod) x -= mod; return *this; } modint &operator-=(const modint &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } modint &operator*=(const modint &p) { x = (int)(1LL * x * p.x % mod); return *this; } modint &operator/=(const modint &p) { *this *= p.inverse(); return *this; } modint operator-() const { return modint(-x); } modint operator+(const modint &p) const { return modint(*this) += p; } modint operator-(const modint &p) const { return modint(*this) -= p; } modint operator*(const modint &p) const { return modint(*this) *= p; } modint operator/(const modint &p) const { return modint(*this) /= p; } bool operator==(const modint &p) const { return x == p.x; } bool operator!=(const modint &p) const { return x != p.x; } modint inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return modint(u); } modint pow(int64_t n) const { modint ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const modint &p) { return os << p.x; } friend istream &operator>>(istream &is, modint &a) { int64_t t; is >> t; a = modint<mod>(t); return (is); } static int get_mod() { return mod; } }; // abreviations #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define rep_(i, a_, b_, a, b, ...) for (ll i = (a), max_i = (b); i < max_i; i++) #define rep(i, ...) rep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define rrep_(i, a_, b_, a, b, ...) \ for (ll i = (b - 1), min_i = (a); i >= min_i; i--) #define rrep(i, ...) rrep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define SZ(x) ((int)(x).size()) #define pb(x) push_back(x) #define eb(x) emplace_back(x) #define mp make_pair #define print(x) cout << x << endl #define vprint(x) \ rep(i, x.size()) cout << x[i] << ' '; \ cout << endl #define vsum(x) accumulate(all(x), 0LL) #define vmax(a) *max_element(all(a)) #define vmin(a) *min_element(all(a)) #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) // functions // gcd(0, x) fails. ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } ll lcm(ll a, ll b) { return a / gcd(a, b) * b; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } template <typename T> T mypow(T x, ll n) { T ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; } return ret; } ll modpow(ll x, ll n, const ll mod) { ll ret = 1; while (n > 0) { if (n & 1) (ret *= x); (x *= x); n >>= 1; x %= mod; ret %= mod; } return ret; } template <typename T> uint64_t my_rand(void) { static uint64_t x = 88172645463325252ULL; x = x ^ (x << 13); x = x ^ (x >> 7); return x = x ^ (x << 17); } int popcnt(ull x) { return __builtin_popcountll(x); } // graph template template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } bool operator<(const edge<T> &r) const { return cost < r.cost; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T>>; template <typename T> using WeightedGraph = vector<Edges<T>>; using UnWeightedGraph = vector<vector<int>>; struct Timer { clock_t start_time; void start() { start_time = clock(); } int lap() { // return x ms. return (clock() - start_time) * 1000 / CLOCKS_PER_SEC; } }; /* #endregion*/ // constant #define inf 1000000005 #define INF 4000000004000000000LL #define mod 1000000007LL #define endl '\n' typedef modint<mod> mint; const long double eps = 0.000001; const long double PI = 3.141592653589793; // library template <typename T> struct BIT { vector<T> data; BIT(int sz) { data.assign(++sz, 0); } //[0, k) T sum(int k) { T ret = 0; for (; k > 0; k -= k & -k) ret += data[k]; return (ret); } void add(int k, T x) { for (++k; k < data.size(); k += k & -k) data[k] += x; } // 0-indexedでk番目の値を返す。 int search(long long k) { ++k; int res = 0; int N = 1; while (N < (int)data.size()) N *= 2; for (int i = N / 2; i > 0; i /= 2) { if (res + i < (int)data.size() && data[res + i] < k) { k = k - data[res + i]; res = res + i; } } return res; } // for debug void show() { rep(i, SZ(data) - 1) cout << sum(i + 1) - sum(i) << ' '; cout << endl; } }; int main() { cin.tie(0); ios::sync_with_stdio(0); cout << setprecision(20); int n, q; cin >> n >> q; vi c(n); rep(i, n) cin >> c[i]; vi ans(q); vi l(q), r(q); rep(i, q) { cin >> l[i] >> r[i]; l[i]--; } vi id(q); iota(all(id), 0); sort(all(id), [&](int i, int j) { return r[i] < r[j]; }); vi last(vmax(c) + 1, -1); BIT<int> bit(n); int now = 0; for (int i : id) { rep(j, now, r[i]) { if (last[c[j]] >= 0) bit.add(last[c[j]], -1); last[c[j]] = j; bit.add(j, 1); } now = r[i]; ans[i] = bit.sum(r[i]) - bit.sum(l[i]); } rep(i, q) print(ans[i]); }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; namespace fast { const int BSZ = 1 << 15; ////// INPUT char ibuf[BSZ]; int ipos, ilen; char nc() { // next char if (ipos == ilen) { ipos = 0; ilen = fread(ibuf, 1, BSZ, stdin); if (!ilen) return EOF; } return ibuf[ipos++]; } void rs(string &x) { // read string char ch; while (isspace(ch = nc())) ; do { x += ch; } while (!isspace(ch = nc()) && ch != EOF); } template <class T> void ri(T &x) { // read int or ll char ch; int sgn = 1; while (!isdigit(ch = nc())) if (ch == '-') sgn *= -1; x = ch - '0'; while (isdigit(ch = nc())) x = x * 10 + (ch - '0'); x *= sgn; } template <class T, class... Ts> void ri(T &t, Ts &...ts) { ri(t); ri(ts...); } // read ints ////// OUTPUT (call initO() at start) char obuf[BSZ], numBuf[100]; int opos; void flushOut() { fwrite(obuf, 1, opos, stdout); opos = 0; } void wc(char c) { // write char if (opos == BSZ) flushOut(); obuf[opos++] = c; } void ws(string s) { for (char c : s) wc(c); } // write string template <class T> void wi(T x, char after = '\0') { /// write int if (x < 0) wc('-'), x *= -1; int len = 0; for (; x >= 10; x /= 10) numBuf[len++] = '0' + (x % 10); wc('0' + x); for (int i = len - 1; i >= 0; i--) wc(numBuf[i]); if (after) wc(after); } void initO() { assert(atexit(flushOut) == 0); } /// auto-flush output } // namespace fast using namespace fast; // Globals const int mxn = 200005; int a[mxn], freq[mxn] = {}; class query { public: int s, e, i, b; query() { s = e = i = b = INT_MAX; } query(int start, int end, int index, int block) { s = start, e = end, i = index, b = block; } }; class querySolver { public: int sz; vector<query> queries; querySolver(int q) { sz = 0; queries.resize(q); } void addQuery(int s, int e, int i, int b) { queries[sz++] = query(s, e, i, b); } void solve() { sort(queries.begin(), queries.end(), [](query &q1, query &q2) -> bool { if (q1.b == q2.b) return q1.e < q2.e; return q1.b < q2.b; }); vector<int> res(sz); int l = queries[0].s, r = queries[0].e, cnt = 0; for (int i = l; i <= r; i++) { freq[a[i]]++; if (freq[a[i]] == 1) cnt++; } res[queries[0].i] = cnt; for (int i = 1; i < sz; i++) { int nL = queries[i].s, nR = queries[i].e; if (l < nL) { // Remove elements while (l < nL) { freq[a[l]]--; if (!freq[a[l]]) cnt--; l++; } } else if (l > nL) { // Add elements while (l > nL) { l--; freq[a[l]]++; if (freq[a[l]] == 1) cnt++; } } if (r < nR) { // Add elements while (r < nR) { r++; freq[a[r]]++; if (freq[a[r]] == 1) cnt++; } } else if (r > nR) { // Remove elements while (r > nR) { freq[a[r]]--; if (!freq[a[r]]) cnt--; r--; } } res[queries[i].i] = cnt; } for (auto &ans : res) wi(ans, '\n'); } }; int main() { initO(); int n, q; ri(n, q); // Coordinate Compression unordered_map<int, int> compressor; for (int i = 0, nVal = 1; i < n; i++) { ri(a[i]); if (compressor.count(a[i])) { a[i] = compressor[a[i]]; } else { compressor[a[i]] = nVal; a[i] = nVal++; } } // Queries auto qSolver = querySolver(q); int block = sqrt(n); for (int i = 0, start, end; i < q; i++) { ri(start, end); start--, end--; qSolver.addQuery(start, end, i, start / block); } qSolver.solve(); return 0; }
#include <bits/stdc++.h> using namespace std; namespace fast { const int BSZ = 1 << 15; ////// INPUT char ibuf[BSZ]; int ipos, ilen; char nc() { // next char if (ipos == ilen) { ipos = 0; ilen = fread(ibuf, 1, BSZ, stdin); if (!ilen) return EOF; } return ibuf[ipos++]; } void rs(string &x) { // read string char ch; while (isspace(ch = nc())) ; do { x += ch; } while (!isspace(ch = nc()) && ch != EOF); } template <class T> void ri(T &x) { // read int or ll char ch; int sgn = 1; while (!isdigit(ch = nc())) if (ch == '-') sgn *= -1; x = ch - '0'; while (isdigit(ch = nc())) x = x * 10 + (ch - '0'); x *= sgn; } template <class T, class... Ts> void ri(T &t, Ts &...ts) { ri(t); ri(ts...); } // read ints ////// OUTPUT (call initO() at start) char obuf[BSZ], numBuf[100]; int opos; void flushOut() { fwrite(obuf, 1, opos, stdout); opos = 0; } void wc(char c) { // write char if (opos == BSZ) flushOut(); obuf[opos++] = c; } void ws(string s) { for (char c : s) wc(c); } // write string template <class T> void wi(T x, char after = '\0') { /// write int if (x < 0) wc('-'), x *= -1; int len = 0; for (; x >= 10; x /= 10) numBuf[len++] = '0' + (x % 10); wc('0' + x); for (int i = len - 1; i >= 0; i--) wc(numBuf[i]); if (after) wc(after); } void initO() { assert(atexit(flushOut) == 0); } /// auto-flush output } // namespace fast using namespace fast; // Globals const int mxn = 500005; int a[mxn], freq[mxn] = {}; class query { public: int s, e, i, b; query() { s = e = i = b = INT_MAX; } query(int start, int end, int index, int block) { s = start, e = end, i = index, b = block; } }; class querySolver { public: int sz; vector<query> queries; querySolver(int q) { sz = 0; queries.resize(q); } void addQuery(int s, int e, int i, int b) { queries[sz++] = query(s, e, i, b); } void solve() { sort(queries.begin(), queries.end(), [](query &q1, query &q2) -> bool { if (q1.b == q2.b) return q1.e < q2.e; return q1.b < q2.b; }); vector<int> res(sz); int l = queries[0].s, r = queries[0].e, cnt = 0; for (int i = l; i <= r; i++) { freq[a[i]]++; if (freq[a[i]] == 1) cnt++; } res[queries[0].i] = cnt; for (int i = 1; i < sz; i++) { int nL = queries[i].s, nR = queries[i].e; if (l < nL) { // Remove elements while (l < nL) { freq[a[l]]--; if (!freq[a[l]]) cnt--; l++; } } else if (l > nL) { // Add elements while (l > nL) { l--; freq[a[l]]++; if (freq[a[l]] == 1) cnt++; } } if (r < nR) { // Add elements while (r < nR) { r++; freq[a[r]]++; if (freq[a[r]] == 1) cnt++; } } else if (r > nR) { // Remove elements while (r > nR) { freq[a[r]]--; if (!freq[a[r]]) cnt--; r--; } } res[queries[i].i] = cnt; } for (auto &ans : res) wi(ans, '\n'); } }; int main() { initO(); int n, q; ri(n, q); // Coordinate Compression unordered_map<int, int> compressor; for (int i = 0, nVal = 1; i < n; i++) { ri(a[i]); if (compressor.count(a[i])) { a[i] = compressor[a[i]]; } else { compressor[a[i]] = nVal; a[i] = nVal++; } } // Queries auto qSolver = querySolver(q); int block = sqrt(n); for (int i = 0, start, end; i < q; i++) { ri(start, end); start--, end--; qSolver.addQuery(start, end, i, start / block); } qSolver.solve(); return 0; }
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p02599
C++
Runtime Error
// luogu-judger-enable-o2 #pragma GCC optimize(2) #include <bits/stdc++.h> using namespace std; #define rg register typedef long long ll; template <typename T> bool read(T &n) { T ans = 0, flag = 1; char ch; while ((ch = getchar()) < '0' || ch > '9') if (ch == '-') flag = -1; else if (ch == EOF) return false; ans = ch - '0'; while ((ch = getchar()) >= '0' && ch <= '9') ans = ans * 10 + ch - '0'; n = ans * flag; return true; } template <typename T> T read() { T ans = 0, flag = 1; char ch; while ((ch = getchar()) < '0' || ch > '9') if (ch == '-') flag = -1; else if (ch == EOF) return false; ans = ch - '0'; while ((ch = getchar()) >= '0' && ch <= '9') ans = ans * 10 + ch - '0'; return ans * flag; }; struct QUE { int l, r, id; } que[50004]; int sz, belong[50004], n, m, pre[50004], cnt[50004]; ll fz[50004], fm[50004], ans; bool cmp(QUE a, QUE b) { return belong[a.l] == belong[b.l] ? (belong[a.l] % 2 ? a.r < b.r : a.r > b.r) : belong[a.l] < belong[b.l]; } int main() { read(n), read(m); sz = sqrt(n); for (int i = 1; i <= n; i++) read(pre[i]); for (int i = 1; i <= m; i++) read(que[i].l), read(que[i].r), que[i].id = i, belong[i] = (i - 1) / sz + 1; sort(que + 1, que + m + 1, cmp); int nl = que[1].l, nr = que[1].l; cnt[pre[nl]]++; ans = 1; for (int i = 1; i <= m; i++) { while (nl < que[i].l) { if (cnt[pre[nl]] == 1) ans--; cnt[pre[nl]]--, nl++; } while (nr > que[i].r) { if (cnt[pre[nr]] == 1) ans--; cnt[pre[nr]]--, nr--; } while (nl > que[i].l) { nl--; if (cnt[pre[nl]] == 0) ans++; cnt[pre[nl]]++; } while (nr < que[i].r) { nr++; if (cnt[pre[nr]] == 0) ans++; cnt[pre[nr]]++; } fz[que[i].id] = ans; } for (int i = 1; i <= m; i++) { printf("%lld\n", fz[i]); } return 0; }
// luogu-judger-enable-o2 #pragma GCC optimize(2) #include <bits/stdc++.h> using namespace std; #define rg register typedef long long ll; template <typename T> bool read(T &n) { T ans = 0, flag = 1; char ch; while ((ch = getchar()) < '0' || ch > '9') if (ch == '-') flag = -1; else if (ch == EOF) return false; ans = ch - '0'; while ((ch = getchar()) >= '0' && ch <= '9') ans = ans * 10 + ch - '0'; n = ans * flag; return true; } template <typename T> T read() { T ans = 0, flag = 1; char ch; while ((ch = getchar()) < '0' || ch > '9') if (ch == '-') flag = -1; else if (ch == EOF) return false; ans = ch - '0'; while ((ch = getchar()) >= '0' && ch <= '9') ans = ans * 10 + ch - '0'; return ans * flag; }; struct QUE { int l, r, id; } que[500004]; int sz, belong[500004], n, m, pre[500004], cnt[500004]; ll fz[500004], fm[500004], ans; bool cmp(QUE a, QUE b) { return belong[a.l] == belong[b.l] ? (belong[a.l] % 2 ? a.r < b.r : a.r > b.r) : belong[a.l] < belong[b.l]; } int main() { read(n), read(m); sz = sqrt(n); for (int i = 1; i <= n; i++) read(pre[i]); for (int i = 1; i <= m; i++) read(que[i].l), read(que[i].r), que[i].id = i, belong[i] = (i - 1) / sz + 1; sort(que + 1, que + m + 1, cmp); int nl = que[1].l, nr = que[1].l; cnt[pre[nl]]++; ans = 1; for (int i = 1; i <= m; i++) { while (nl < que[i].l) { if (cnt[pre[nl]] == 1) ans--; cnt[pre[nl]]--, nl++; } while (nr > que[i].r) { if (cnt[pre[nr]] == 1) ans--; cnt[pre[nr]]--, nr--; } while (nl > que[i].l) { nl--; if (cnt[pre[nl]] == 0) ans++; cnt[pre[nl]]++; } while (nr < que[i].r) { nr++; if (cnt[pre[nr]] == 0) ans++; cnt[pre[nr]]++; } fz[que[i].id] = ans; } for (int i = 1; i <= m; i++) { printf("%lld\n", fz[i]); } return 0; }
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0
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<int>; using vvi = vector<vector<int>>; using vvvi = vector<vector<vector<int>>>; using vl = vector<ll>; using vvl = vector<vector<ll>>; using vvvl = vector<vector<vector<ll>>>; using vs = vector<string>; using vb = vector<bool>; #define FOR(i, m, n) for (int i = (m); i < (n); i++) #define FORR(i, m, n) for (int i = (m); i >= (n); i--) #define REP(i, n) FOR(i, 0, (n)) #define REPR(i, n) FORR(i, (n)-1, 0) #define REP1(i, n) FOR(i, 1, (n) + 1) #define REPS(c, s) for (char c : s) #define ALL(c) (c).begin(), (c).end() #define SORT(c) sort(ALL(c)) #define REV(c) reverse(ALL(c)) #define sz(v) (int)v.size() #define endl '\n' template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template <class T> inline void prn(vector<T> &v) { int n = sz(v); REP(i, n) cout << v[i] << ' '; } template <class T> inline void printv(vector<T> &v) { int n = sz(v); if (n == 0) cout << endl; REP(i, n) cout << v[i] << (i == n - 1 ? endl : ' '); } template <class T> inline void printvv(vector<vector<T>> &v) { for (auto u : v) printv(u); } template <class T> inline void printlnv(vector<T> &v) { int n = sz(v); REP(i, n) cout << v[i] << endl; } const int MOD = 1000000007; const int INF = 1000000001; const ll LINF = 1000000001000000001LL; void solve(); int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(numeric_limits<double>::max_digits10); solve(); return 0; } class BIT { public: vector<int> bit; int M; BIT(int M) : bit(vector<int>(M + 1, 0)), M(M) {} int sum(int i) { if (!i) return 0; return bit[i] + sum(i - (i & -i)); } void add(int i, int x) { if (i > M) return; bit[i] += x; add(i + (i & -i), x); } }; void solve() { int n, q; cin >> n >> q; vi c(n); REP(i, n) { cin >> c[i]; c[i]--; } BIT bit(n + 1); vi s(n, -1); vector<tuple<int, int, int>> query(q); int l, r; REP(i, q) { cin >> l >> r; l--; r--; query.emplace_back(r, l, i); } SORT(query); int p = -1; vi ans(q); int idx; for (auto m : query) { tie(r, l, idx) = m; FOR(i, p + 1, r + 1) { if (s[c[i]] != -1) bit.add(s[c[i]] + 1, -1); bit.add(i + 1, 1); s[c[i]] = i; } ans[idx] = bit.sum(r + 1 + 1) - bit.sum(l); } printlnv(ans); }
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<int>; using vvi = vector<vector<int>>; using vvvi = vector<vector<vector<int>>>; using vl = vector<ll>; using vvl = vector<vector<ll>>; using vvvl = vector<vector<vector<ll>>>; using vs = vector<string>; using vb = vector<bool>; #define FOR(i, m, n) for (int i = (m); i < (n); i++) #define FORR(i, m, n) for (int i = (m); i >= (n); i--) #define REP(i, n) FOR(i, 0, (n)) #define REPR(i, n) FORR(i, (n)-1, 0) #define REP1(i, n) FOR(i, 1, (n) + 1) #define REPS(c, s) for (char c : s) #define ALL(c) (c).begin(), (c).end() #define SORT(c) sort(ALL(c)) #define REV(c) reverse(ALL(c)) #define sz(v) (int)v.size() #define endl '\n' template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template <class T> inline void prn(vector<T> &v) { int n = sz(v); REP(i, n) cout << v[i] << ' '; } template <class T> inline void printv(vector<T> &v) { int n = sz(v); if (n == 0) cout << endl; REP(i, n) cout << v[i] << (i == n - 1 ? endl : ' '); } template <class T> inline void printvv(vector<vector<T>> &v) { for (auto u : v) printv(u); } template <class T> inline void printlnv(vector<T> &v) { int n = sz(v); REP(i, n) cout << v[i] << endl; } const int MOD = 1000000007; const int INF = 1000000001; const ll LINF = 1000000001000000001LL; void solve(); int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(numeric_limits<double>::max_digits10); solve(); return 0; } class BIT { public: vector<int> bit; int M; BIT(int M) : bit(vector<int>(M + 1, 0)), M(M) {} int sum(int i) { if (!i) return 0; return bit[i] + sum(i - (i & -i)); } void add(int i, int x) { if (i > M) return; bit[i] += x; add(i + (i & -i), x); } }; void solve() { int n, q; cin >> n >> q; vi c(n); REP(i, n) { cin >> c[i]; c[i]--; } BIT bit(n + 1); vi s(n, -1); vector<tuple<int, int, int>> query(q); int l, r; REP(i, q) { cin >> l >> r; l--; r--; query.emplace_back(r, l, i); } SORT(query); int p = -1; vi ans(q); int idx; for (auto m : query) { tie(r, l, idx) = m; FOR(i, p + 1, r + 1) { if (s[c[i]] != -1) bit.add(s[c[i]] + 1, -1); bit.add(i + 1, 1); s[c[i]] = i; } p = r; ans[idx] = bit.sum(r + 1 + 1) - bit.sum(l); } printlnv(ans); }
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p02599
C++
Time Limit Exceeded
#define _CRT_SECURE_NO_WARNINGS #include <bits/stdc++.h> #define fi first #define se second #define pb push_back #define E "\n" using namespace std; const long long MOD = (long long)1e9 + 7; int n, q, c[500009], l, r, ans[500009], cnt[500009]; pair<pair<int, int>, int> dat[500009]; int seg, cur; bool comp(const pair<pair<int, int>, int> &x, const pair<pair<int, int>, int> &y) { if (x.fi.fi / seg < y.fi.fi / seg) return true; else if (x.fi.fi / seg > y.fi.fi / seg) return false; return x.fi.se < y.fi.se; } void fun(int a, int b, int x, int y) { if (a < x) { for (int i = a; i < x; i++) { cnt[c[i]]--; if (cnt[c[i]] == 0) cur--; } } else { for (int i = a - 1; i >= x; i--) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } } if (b < y) { for (int i = b + 1; i <= y; i++) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } } else { for (int i = b; i > y; i--) { cnt[c[i]]--; if (cnt[c[i]] == 0) cur--; } } } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> q; for (int i = 1; i <= n; i++) { cin >> c[i]; } for (int i = 0; i < q; i++) { cin >> l >> r; pair<int, int> tmp = {l, r}; dat[i] = {tmp, i}; } seg = 1; while (seg * seg < n) seg++; sort(dat, dat + 1, comp); for (int i = dat[0].fi.fi; i <= dat[0].fi.se; i++) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } ans[dat[0].se] = cur; for (int i = 1; i < q; i++) { fun(dat[i - 1].fi.fi, dat[i - 1].fi.se, dat[i].fi.fi, dat[i].fi.se); ans[dat[i].se] = cur; } for (int i = 0; i < q; i++) { cout << ans[i] << E; } // system("pause"); return 0; }
#define _CRT_SECURE_NO_WARNINGS #include <bits/stdc++.h> #define fi first #define se second #define pb push_back #define E "\n" using namespace std; const long long MOD = (long long)1e9 + 7; int n, q, c[500009], l, r, ans[500009], cnt[500009]; pair<pair<int, int>, int> dat[500009]; int seg, cur; bool comp(const pair<pair<int, int>, int> &x, const pair<pair<int, int>, int> &y) { if (x.fi.fi / seg < y.fi.fi / seg) return true; else if (x.fi.fi / seg > y.fi.fi / seg) return false; return x.fi.se < y.fi.se; } void fun(int a, int b, int x, int y) { if (a < x) { for (int i = a; i < x; i++) { cnt[c[i]]--; if (cnt[c[i]] == 0) cur--; } } else { for (int i = a - 1; i >= x; i--) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } } if (b < y) { for (int i = b + 1; i <= y; i++) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } } else { for (int i = b; i > y; i--) { cnt[c[i]]--; if (cnt[c[i]] == 0) cur--; } } } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> q; for (int i = 1; i <= n; i++) { cin >> c[i]; } for (int i = 0; i < q; i++) { cin >> l >> r; pair<int, int> tmp = {l, r}; dat[i] = {tmp, i}; } seg = 1; while (seg * seg < n) seg++; sort(dat, dat + q, comp); for (int i = dat[0].fi.fi; i <= dat[0].fi.se; i++) { if (cnt[c[i]] == 0) cur++; cnt[c[i]]++; } ans[dat[0].se] = cur; for (int i = 1; i < q; i++) { fun(dat[i - 1].fi.fi, dat[i - 1].fi.se, dat[i].fi.fi, dat[i].fi.se); ans[dat[i].se] = cur; } for (int i = 0; i < q; i++) { cout << ans[i] << E; } // system("pause"); return 0; }
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p02599
C++
Runtime Error
#include <algorithm> #include <bits/stdc++.h> #include <cmath> #include <iostream> #include <math.h> #include <queue> #include <set> #include <stack> #include <string> #define mem(x) memset(x, 0, sizeof(x)) #define sca(x) \ if (scanf("%d", &x)) { \ } #define scaa(x, y) \ if (scanf("%d%d", &x, &y)) { \ } #define prt(x) printf("%d\n", x) #define inf 0x7f7f7f7fconst int maxn = 1e5 + 5; using namespace std; const int maxn = 5e5 + 1000; int n, m; struct Tree { int ls, rs, val; // 左右儿子的编号, 和维护的一个值. } tre[maxn * 40]; int idx = 0, root[maxn]; int build(int l, int r) { int nod = ++idx; tre[nod].val = 0; if (l == r) return nod; int mid = (l + r) >> 1; tre[nod].ls = build(l, mid); tre[nod].rs = build(mid + 1, r); return nod; } int update(int pre, int l, int r, int pos, int v) { int nod = ++idx; tre[nod] = tre[pre]; tre[nod].val += v; if (l == r) return nod; int mid = (l + r) >> 1; if (pos <= mid) tre[nod].ls = update(tre[pre].ls, l, mid, pos, v); else tre[nod].rs = update(tre[pre].rs, mid + 1, r, pos, v); return nod; } int query(int id, int l, int r, int pos) { if (l == r) return tre[id].val; int mid = (l + r) >> 1; if (pos <= mid) { return tre[tre[id].rs].val + query(tre[id].ls, l, mid, pos); } else return query(tre[id].rs, mid + 1, r, pos); } int a[maxn], vis[maxn * 10]; int main() { scaa(n, m); for (int i = 1; i <= n; i++) { sca(a[i]); } root[0] = build(1, n); // 根节点 for (int i = 1; i <= n; i++) { if (!vis[a[i]]) root[i] = update(root[i - 1], 1, n, i, 1); else { int t = update(root[i - 1], 1, n, vis[a[i]], -1); root[i] = update(t, 1, n, i, 1); } vis[a[i]] = i; } while (m--) { int l, r; scaa(l, r); int tmp = query(root[r], 1, n, l); printf("%d\n", tmp); } }
#include <algorithm> #include <bits/stdc++.h> #include <cmath> #include <iostream> #include <math.h> #include <queue> #include <set> #include <stack> #include <string> #define mem(x) memset(x, 0, sizeof(x)) #define sca(x) \ if (scanf("%d", &x)) { \ } #define scaa(x, y) \ if (scanf("%d%d", &x, &y)) { \ } #define prt(x) printf("%d\n", x) #define inf 0x7f7f7f7fconst int maxn = 1e5 + 5; using namespace std; const int maxn = 9e5 + 1000; int n, m; struct Tree { int ls, rs, val; // 左右儿子的编号, 和维护的一个值. } tre[maxn * 40]; int idx = 0, root[maxn]; int build(int l, int r) { int nod = ++idx; tre[nod].val = 0; if (l == r) return nod; int mid = (l + r) >> 1; tre[nod].ls = build(l, mid); tre[nod].rs = build(mid + 1, r); return nod; } int update(int pre, int l, int r, int pos, int v) { int nod = ++idx; tre[nod] = tre[pre]; tre[nod].val += v; if (l == r) return nod; int mid = (l + r) >> 1; if (pos <= mid) tre[nod].ls = update(tre[pre].ls, l, mid, pos, v); else tre[nod].rs = update(tre[pre].rs, mid + 1, r, pos, v); return nod; } int query(int id, int l, int r, int pos) { if (l == r) return tre[id].val; int mid = (l + r) >> 1; if (pos <= mid) { return tre[tre[id].rs].val + query(tre[id].ls, l, mid, pos); } else return query(tre[id].rs, mid + 1, r, pos); } int a[maxn], vis[maxn * 10]; int main() { scaa(n, m); for (int i = 1; i <= n; i++) { sca(a[i]); } root[0] = build(1, n); // 根节点 for (int i = 1; i <= n; i++) { if (!vis[a[i]]) root[i] = update(root[i - 1], 1, n, i, 1); else { int t = update(root[i - 1], 1, n, vis[a[i]], -1); root[i] = update(t, 1, n, i, 1); } vis[a[i]] = i; } while (m--) { int l, r; scaa(l, r); int tmp = query(root[r], 1, n, l); printf("%d\n", tmp); } }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; #define ff first #define ss second #define ll int64_t #define ld long double #define nl cout << "\n" #define all(v) v.begin(), v.end() #define mset(a, v) memset((a), (v), sizeof(a)) #define forn(i, a, b) for (int64_t i = int64_t(a); i < int64_t(b); ++i) #define forb(i, a, b) for (int64_t i = int64_t(a); i >= int64_t(b); --i) #define fastio() \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ordered_set \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000007 #define pi 3.14159265358979323846 template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> &p) { return out << "(" << p.ff << ", " << p.ss << ")"; } template <class T> ostream &operator<<(ostream &out, vector<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, deque<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, set<T> &s) { out << "{"; for (auto it = s.begin(); it != s.end(); ++it) { if (it != s.begin()) out << ", "; out << *it; } return out << "}"; } template <class L, class R> ostream &operator<<(ostream &out, map<L, R> &m) { out << "{"; for (auto it = m.begin(); it != m.end(); ++it) { if (it != m.begin()) out << ", "; out << *it; } return out << "}"; } void dbg_out() { cerr << "]\n"; } template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cerr << H; if (sizeof...(Tail)) cerr << ", "; dbg_out(T...); } #ifdef LOCAL #define dbg(...) cerr << "[" << #__VA_ARGS__ << "] = [", dbg_out(__VA_ARGS__) #else #define dbg(...) #endif ll count_digits(ll n) { ll dig = floor(log10(n) + 1); return dig; } ll mpow(ll x, ll y, ll p) { ll r = 1; x = x % p; while (y > 0) { if (y & 1) r = (r * x) % p; y = y >> 1; x = (x * x) % p; } return r; } ll mod_inv(ll a, ll m) { ll m0 = m, y = 0, x = 1; if (m == 1) return 0; while (a > 1) { ll q = a / m, t = m; m = a % m, a = t; t = y; y = x - q * y; x = t; } if (x < 0) x += m0; return x; } /* const ll MAXN=1000007;ll spf[MAXN+5];vector<ll> prime; */ /* void sieve(ll n) {forn(i,2,MAXN+1)spf[i]=i;for(ll * i=2;i*i<=n;i++)if(spf[i]==i)for(ll * j=i*i;j<=n;j+=i)if(spf[j]==j)spf[j]=i;forn(i,2,MAXN+1)if(spf[i]==i)prime.push_back(i);} */ //-------------------------------L_I_Erq34------------------------------- vector<ll> a, b; vector<vector<ll>> segtree; void build(ll n) { forn(i, 0, n) segtree[i + n] = {a[i]}; forb(i, n - 1, 0) { segtree[i].resize(segtree[i << 1].size() + segtree[i << 1 | 1].size()); merge(all(segtree[i << 1]), all(segtree[i << 1 | 1]), segtree[i].begin()); } } ll query(ll n, ll l, ll r) { ll res = 0, val = r - 1; for (l += n, r += n; l < r; l >>= 1, r >>= 1) { if (l & 1) { res += segtree[l].end() - upper_bound(all(segtree[l]), val); l++; } if (r & 1) { r--; res += segtree[r].end() - upper_bound(all(segtree[r]), val); } } return res; } int main() { fastio(); ll z, n, m, t, k, i, j, l, d, h, r; cin >> n >> m; a = b = vector<ll>(n, inf); for (ll &i : a) { cin >> i; i--; } forb(i, n - 1, 0) { r = b[a[i]]; b[a[i]] = i; a[i] = r; } segtree = vector<vector<ll>>(n << 1); build(n); while (m--) { cin >> l >> r; cout << query(n, l - 1, r) << "\n"; } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; #define ff first #define ss second #define ll int64_t #define ld long double #define nl cout << "\n" #define all(v) v.begin(), v.end() #define mset(a, v) memset((a), (v), sizeof(a)) #define forn(i, a, b) for (int64_t i = int64_t(a); i < int64_t(b); ++i) #define forb(i, a, b) for (int64_t i = int64_t(a); i >= int64_t(b); --i) #define fastio() \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ordered_set \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000007 #define pi 3.14159265358979323846 template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> &p) { return out << "(" << p.ff << ", " << p.ss << ")"; } template <class T> ostream &operator<<(ostream &out, vector<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, deque<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, set<T> &s) { out << "{"; for (auto it = s.begin(); it != s.end(); ++it) { if (it != s.begin()) out << ", "; out << *it; } return out << "}"; } template <class L, class R> ostream &operator<<(ostream &out, map<L, R> &m) { out << "{"; for (auto it = m.begin(); it != m.end(); ++it) { if (it != m.begin()) out << ", "; out << *it; } return out << "}"; } void dbg_out() { cerr << "]\n"; } template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cerr << H; if (sizeof...(Tail)) cerr << ", "; dbg_out(T...); } #ifdef LOCAL #define dbg(...) cerr << "[" << #__VA_ARGS__ << "] = [", dbg_out(__VA_ARGS__) #else #define dbg(...) #endif ll count_digits(ll n) { ll dig = floor(log10(n) + 1); return dig; } ll mpow(ll x, ll y, ll p) { ll r = 1; x = x % p; while (y > 0) { if (y & 1) r = (r * x) % p; y = y >> 1; x = (x * x) % p; } return r; } ll mod_inv(ll a, ll m) { ll m0 = m, y = 0, x = 1; if (m == 1) return 0; while (a > 1) { ll q = a / m, t = m; m = a % m, a = t; t = y; y = x - q * y; x = t; } if (x < 0) x += m0; return x; } /* const ll MAXN=1000007;ll spf[MAXN+5];vector<ll> prime; */ /* void sieve(ll n) {forn(i,2,MAXN+1)spf[i]=i;for(ll * i=2;i*i<=n;i++)if(spf[i]==i)for(ll * j=i*i;j<=n;j+=i)if(spf[j]==j)spf[j]=i;forn(i,2,MAXN+1)if(spf[i]==i)prime.push_back(i);} */ //-------------------------------L_I_Erq34------------------------------- vector<ll> a, b; vector<vector<ll>> segtree; void build(ll n) { forn(i, 0, n) segtree[i + n] = {a[i]}; forb(i, n - 1, 1) { segtree[i].resize(segtree[i << 1].size() + segtree[i << 1 | 1].size()); merge(all(segtree[i << 1]), all(segtree[i << 1 | 1]), segtree[i].begin()); } } ll query(ll n, ll l, ll r) { ll res = 0, val = r - 1; for (l += n, r += n; l < r; l >>= 1, r >>= 1) { if (l & 1) { res += segtree[l].end() - upper_bound(all(segtree[l]), val); l++; } if (r & 1) { r--; res += segtree[r].end() - upper_bound(all(segtree[r]), val); } } return res; } int main() { fastio(); ll z, n, m, t, k, i, j, l, d, h, r; cin >> n >> m; a = b = vector<ll>(n, inf); for (ll &i : a) { cin >> i; i--; } forb(i, n - 1, 0) { r = b[a[i]]; b[a[i]] = i; a[i] = r; } segtree = vector<vector<ll>>(n << 1); build(n); while (m--) { cin >> l >> r; cout << query(n, l - 1, r) << "\n"; } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; #define ff first #define ss second #define ll int64_t #define ld long double #define nl cout << "\n" #define dbg(x) cerr << #x << " = " << x << "\n" #define dbg2(x, y) cerr << #x << " = " << x << " " << #y << " = " << y << "\n" #define all(v) v.begin(), v.end() #define mset(a, v) memset((a), (v), sizeof(a)) #define forn(i, a, b) for (int64_t i = int64_t(a); i < int64_t(b); ++i) #define forb(i, a, b) for (int64_t i = int64_t(a); i >= int64_t(b); --i) #define fastio() \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ordered_set \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000007 #define pi 3.14159265358979323846 template <typename T, typename U> static inline void amin(T &x, U y) { if (y < x) x = y; } template <typename T, typename U> static inline void amax(T &x, U y) { if (x < y) x = y; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> &p) { return out << "(" << p.ff << ", " << p.ss << ")"; } template <class T> ostream &operator<<(ostream &out, vector<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, deque<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, set<T> &s) { out << "{"; for (auto it = s.begin(); it != s.end(); ++it) { if (it != s.begin()) out << ", "; out << *it; } return out << "}"; } template <class L, class R> ostream &operator<<(ostream &out, map<L, R> &m) { out << "{"; for (auto it = m.begin(); it != m.end(); ++it) { if (it != m.begin()) out << ", "; out << *it; } return out << "}"; } ll count_digits(ll n) { ll dig = floor(log10(n) + 1); return dig; } ll mpow(ll x, ll y, ll p) { ll r = 1; x = x % p; while (y > 0) { if (y & 1) r = (r * x) % p; y = y >> 1; x = (x * x) % p; } return r; } string dec_bin_32(ll n) { string s; for (ll i = 31; i >= 0; i--) { ll k = n >> i; s += (k & 1) ? '1' : '0'; } return s; } string dec_bin_64(ll n) { string s; for (ll i = 63; i >= 0; i--) { ll k = n >> i; s += (k & 1) ? '1' : '0'; } return s; } ll mod_inv(ll a, ll m) { ll m0 = m, y = 0, x = 1; if (m == 1) return 0; while (a > 1) { ll q = a / m, t = m; m = a % m, a = t; t = y; y = x - q * y; x = t; } if (x < 0) x += m0; return x; } /* const ll MAXN=10000007;ll spf[MAXN+5];vector<ll> prime; */ /* void sieve(ll n) {forn(i,2,MAXN+1)spf[i]=i;for(ll * i=2;i*i<=n;i++)if(spf[i]==i)for(ll * j=i*i;j<=n;j+=i)if(spf[j]==j)spf[j]=i;forn(i,2,MAXN+1)if(spf[i]==i)prime.push_back(i);} */ //-------------------------------L_I_Erq34------------------------------- vector<vector<ll>> segtree; vector<ll> b; void construct(ll st, ll end, ll i) { if (st == end) { segtree[i].push_back(b[st]); return; } ll mid = (st + end) >> 1; construct(st, mid, 2 * i + 1); construct(mid + 1, end, 2 * i + 2); segtree[i].resize(segtree[2 * i + 1].size() + segtree[2 * i + 2].size()); merge(all(segtree[2 * i + 1]), all(segtree[2 * i + 2]), segtree[i].begin()); } ll query(ll l, ll h, ll st, ll end, ll i, ll k) { if (l <= st and h >= end) return upper_bound(all(segtree[i]), k) - segtree[i].begin(); if (l > end or h < st) return 0; ll mid = (st + end) >> 1; return query(l, h, st, mid, 2 * i + 1, k) + query(l, h, mid + 1, end, 2 * i + 2, k); } int main() { fastio(); ll z, n, m, t, k, i, j, l, d, h, r; ll q; cin >> n >> q; vector<ll> a(n), ind(n + 1, inf); b.resize(n); for (ll &i : a) cin >> i; forb(i, n - 1, 0) { b[i] = ind[a[i]]; ind[a[i]] = i; } dbg(b); segtree.resize(n << 2); construct(0, n - 1, 0); while (q--) { cin >> l >> r; l--, r--; k = r - l + 1 - query(l, r, 0, n - 1, 0, r); cout << k << "\n"; } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; #define ff first #define ss second #define ll int64_t #define ld long double #define nl cout << "\n" #define dbg(x) cerr << #x << " = " << x << "\n" #define dbg2(x, y) cerr << #x << " = " << x << " " << #y << " = " << y << "\n" #define all(v) v.begin(), v.end() #define mset(a, v) memset((a), (v), sizeof(a)) #define forn(i, a, b) for (int64_t i = int64_t(a); i < int64_t(b); ++i) #define forb(i, a, b) for (int64_t i = int64_t(a); i >= int64_t(b); --i) #define fastio() \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ordered_set \ tree<int, null_type, less<int>, rb_tree_tag, \ tree_order_statistics_node_update> #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000007 #define pi 3.14159265358979323846 template <typename T, typename U> static inline void amin(T &x, U y) { if (y < x) x = y; } template <typename T, typename U> static inline void amax(T &x, U y) { if (x < y) x = y; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> &p) { return out << "(" << p.ff << ", " << p.ss << ")"; } template <class T> ostream &operator<<(ostream &out, vector<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, deque<T> &v) { out << "["; for (auto it = v.begin(); it != v.end(); ++it) { if (it != v.begin()) out << ", "; out << *it; } return out << "]"; } template <class T> ostream &operator<<(ostream &out, set<T> &s) { out << "{"; for (auto it = s.begin(); it != s.end(); ++it) { if (it != s.begin()) out << ", "; out << *it; } return out << "}"; } template <class L, class R> ostream &operator<<(ostream &out, map<L, R> &m) { out << "{"; for (auto it = m.begin(); it != m.end(); ++it) { if (it != m.begin()) out << ", "; out << *it; } return out << "}"; } ll count_digits(ll n) { ll dig = floor(log10(n) + 1); return dig; } ll mpow(ll x, ll y, ll p) { ll r = 1; x = x % p; while (y > 0) { if (y & 1) r = (r * x) % p; y = y >> 1; x = (x * x) % p; } return r; } string dec_bin_32(ll n) { string s; for (ll i = 31; i >= 0; i--) { ll k = n >> i; s += (k & 1) ? '1' : '0'; } return s; } string dec_bin_64(ll n) { string s; for (ll i = 63; i >= 0; i--) { ll k = n >> i; s += (k & 1) ? '1' : '0'; } return s; } ll mod_inv(ll a, ll m) { ll m0 = m, y = 0, x = 1; if (m == 1) return 0; while (a > 1) { ll q = a / m, t = m; m = a % m, a = t; t = y; y = x - q * y; x = t; } if (x < 0) x += m0; return x; } /* const ll MAXN=10000007;ll spf[MAXN+5];vector<ll> prime; */ /* void sieve(ll n) {forn(i,2,MAXN+1)spf[i]=i;for(ll * i=2;i*i<=n;i++)if(spf[i]==i)for(ll * j=i*i;j<=n;j+=i)if(spf[j]==j)spf[j]=i;forn(i,2,MAXN+1)if(spf[i]==i)prime.push_back(i);} */ //-------------------------------L_I_Erq34------------------------------- vector<vector<ll>> segtree; vector<ll> b; void construct(ll st, ll end, ll i) { if (st == end) { segtree[i].push_back(b[st]); return; } ll mid = (st + end) >> 1; construct(st, mid, 2 * i + 1); construct(mid + 1, end, 2 * i + 2); segtree[i].resize(segtree[2 * i + 1].size() + segtree[2 * i + 2].size()); merge(all(segtree[2 * i + 1]), all(segtree[2 * i + 2]), segtree[i].begin()); } ll query(ll l, ll h, ll st, ll end, ll i, ll k) { if (l <= st and h >= end) return upper_bound(all(segtree[i]), k) - segtree[i].begin(); if (l > end or h < st) return 0; ll mid = (st + end) >> 1; return query(l, h, st, mid, 2 * i + 1, k) + query(l, h, mid + 1, end, 2 * i + 2, k); } int main() { fastio(); ll z, n, m, t, k, i, j, l, d, h, r; ll q; cin >> n >> q; vector<ll> a(n), ind(n + 1, inf); b.resize(n); for (ll &i : a) cin >> i; forb(i, n - 1, 0) { b[i] = ind[a[i]]; ind[a[i]] = i; } segtree.resize(n << 2); construct(0, n - 1, 0); while (q--) { cin >> l >> r; l--, r--; k = r - l + 1 - query(l, r, 0, n - 1, 0, r); cout << k << "\n"; } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define int long long #define pb push_back #define all(a) (a).begin(), (a).end() #define sz(x) (int)x.size() #define F first #define S second #define endl "\n" #define inf (long long)1000000007 #define FOR(i, a, b) for (int i = a; i < b; i++) #define bigint 1e18 mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count()); #define SHUF(v) shuffle(aint(v), RNG); // Use mt19937_64 for 64 bit random numbers. template <typename T> T ceil(T a, T b) { return (a + b - 1) / b; } template <typename T> T binpow(T a, T b, T m) { a %= m; T res = 1; while (b > 0) { if (b & 1) res = res * a % m; a = a * a % m; b >>= 1; } return res; } const int BLOCK = 600; struct Query { int l, r, idx; }; bool cmp(Query x, Query y) { if (x.l / BLOCK != y.l / BLOCK) { // different blocks, so sort by block. return x.l / BLOCK < y.l / BLOCK; } // same block, so sort by R value return x.r < y.r; } int arr[511111], cnt[511111], ans = 0; void add(int idx) { cnt[arr[idx]]++; if (cnt[arr[idx]] == 1) { ans++; } } void remove(int idx) { cnt[arr[idx]]--; if (cnt[arr[idx]] == 0) { ans--; } } vector<int> mo_s_algorithm(vector<Query> &queries) { vector<int> res(queries.size()); sort(all(queries), cmp); int cur_l = 0; int cur_r = -1; for (Query q : queries) { while (cur_l > q.l) { cur_l--; add(cur_l); } while (cur_r < q.r) { cur_r++; add(cur_r); } while (cur_l < q.l) { remove(cur_l); cur_l++; } while (cur_r > q.r) { remove(cur_r); cur_r--; } res[q.idx] = ans; } return res; } void solve() { int n, a, b, q; cin >> n >> q; FOR(i, 0, n) cin >> arr[i]; Query qq; vector<Query> qu; FOR(i, 0, q) { cin >> a >> b; a--, b--; qq.l = a, qq.r = b, qq.idx = i; qu.pb(qq); } vector<int> res = mo_s_algorithm(qu); for (int x : res) { cout << x << endl; } } signed main() { ios::sync_with_stdio(false); cin.tie(0); int t = 1; // cin>>t; FOR(i, 1, t + 1) { // cout<<"Case #"<<i<<": "; solve(); } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
#include <bits/stdc++.h> using namespace std; #define int long long #define pb push_back #define all(a) (a).begin(), (a).end() #define sz(x) (int)x.size() #define F first #define S second #define endl "\n" #define inf (long long)1000000007 #define FOR(i, a, b) for (int i = a; i < b; i++) #define bigint 1e18 mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count()); #define SHUF(v) shuffle(aint(v), RNG); // Use mt19937_64 for 64 bit random numbers. template <typename T> T ceil(T a, T b) { return (a + b - 1) / b; } template <typename T> T binpow(T a, T b, T m) { a %= m; T res = 1; while (b > 0) { if (b & 1) res = res * a % m; a = a * a % m; b >>= 1; } return res; } const int BLOCK = 700; struct Query { int l, r, idx; }; bool cmp(Query x, Query y) { if (x.l / BLOCK != y.l / BLOCK) { // different blocks, so sort by block. return x.l / BLOCK < y.l / BLOCK; } // same block, so sort by R value return x.r < y.r; } int arr[511111], cnt[511111], ans = 0; void add(int idx) { cnt[arr[idx]]++; if (cnt[arr[idx]] == 1) { ans++; } } void remove(int idx) { cnt[arr[idx]]--; if (cnt[arr[idx]] == 0) { ans--; } } vector<int> mo_s_algorithm(vector<Query> &queries) { vector<int> res(queries.size()); sort(all(queries), cmp); int cur_l = 0; int cur_r = -1; for (Query q : queries) { while (cur_l > q.l) { cur_l--; add(cur_l); } while (cur_r < q.r) { cur_r++; add(cur_r); } while (cur_l < q.l) { remove(cur_l); cur_l++; } while (cur_r > q.r) { remove(cur_r); cur_r--; } res[q.idx] = ans; } return res; } void solve() { int n, a, b, q; cin >> n >> q; FOR(i, 0, n) cin >> arr[i]; Query qq; vector<Query> qu; FOR(i, 0, q) { cin >> a >> b; a--, b--; qq.l = a, qq.r = b, qq.idx = i; qu.pb(qq); } vector<int> res = mo_s_algorithm(qu); for (int x : res) { cout << x << endl; } } signed main() { ios::sync_with_stdio(false); cin.tie(0); int t = 1; // cin>>t; FOR(i, 1, t + 1) { // cout<<"Case #"<<i<<": "; solve(); } cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n"; return 0; }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> // #undef DEBUG // Uncomment this line to forcefully disable debug print. #if DEBUG template <typename T> void debug(T value) { std::cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { std::cerr << value << ", "; debug(args...); } #define dbg(...) \ do { \ cerr << #__VA_ARGS__ << ": "; \ debug(__VA_ARGS__); \ cerr << " (L" << __LINE__ << ")" << endl; \ } while (0) #else #define dbg(...) #endif void read_from_cin() {} template <typename T, typename... Ts> void read_from_cin(T &value, Ts &...args) { std::cin >> value; read_from_cin(args...); } #define in(type, ...) \ type __VA_ARGS__; \ read_from_cin(__VA_ARGS__); template <typename T> void write_to_cout(const T &value) { std::cout << value << '\n'; } template <typename T, typename... Ts> void write_to_cout(const T &value, const Ts &...args) { std::cout << value << ' '; write_to_cout(args...); } #define out(...) write_to_cout(__VA_ARGS__); #define all(x) (x).begin(), (x).end() #define rep(i, n) for (int i = 0; i < (int)(n); ++i) using ll = long long; template <typename T> using V = std::vector<T>; template <typename T> using VV = V<V<T>>; template <typename T, class DS> class Mo { public: Mo(DS &ds) : ds_(ds), index_(0), prev_(-1) {} std::pair<int, T> ProcessQuery() { if (prev_ == -1) { int bin = sqrt(index_); sort(queries_.begin(), queries_.end(), [&bin](const Query &a, const Query &b) { int ba = a.begin / bin, bb = b.begin / bin; if (ba != bb) return ba < bb; return a.end < b.end; if (ba % 2 == 0) { return a.end < b.end; } else { return a.end > b.end; } }); prev_ = 0; const Query &q = queries_[0]; Add(q.begin, q.end); return {q.index, ds_.Get()}; } const Query &p = queries_[prev_]; const Query &c = queries_[prev_ + 1]; ++prev_; Add(c.begin, p.begin); Del(p.begin, c.begin); Add(p.end, c.end); Del(c.end, p.end); return {c.index, ds_.Get()}; } void AddQuery(int begin, int end) { queries_.push_back({begin, end, index_++}); } private: struct Query { int begin, end, index; }; void Add(int begin, int end) { for (int i = begin; i < end; ++i) { ds_.Add(i); } } void Del(int begin, int end) { for (int i = begin; i < end; ++i) { ds_.Del(i); } } DS &ds_; int index_, prev_; std::vector<Query> queries_; }; using namespace std; struct DS { DS(int n) : c(n), kinds(n), unique_kinds(0) {} void Add(int i) { if (kinds[c[i] - 1]++ == 0) { ++unique_kinds; } } void Del(int i) { if (--kinds[c[i] - 1] == 0) { --unique_kinds; } } int Get() const { return unique_kinds; } V<int> c; V<int> kinds; int unique_kinds; }; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); in(int, n, q); DS ds(n); rep(i, n) cin >> ds.c[i]; Mo<int, DS> mo(ds); rep(i, q) { in(int, l, r); mo.AddQuery(l - 1, r); } vector<int> ans(q); rep(i, q) { auto [idx, x] = mo.ProcessQuery(); ans[idx] = x; } rep(i, q) out(ans[i]); }
#include <bits/stdc++.h> // #undef DEBUG // Uncomment this line to forcefully disable debug print. #if DEBUG template <typename T> void debug(T value) { std::cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { std::cerr << value << ", "; debug(args...); } #define dbg(...) \ do { \ cerr << #__VA_ARGS__ << ": "; \ debug(__VA_ARGS__); \ cerr << " (L" << __LINE__ << ")" << endl; \ } while (0) #else #define dbg(...) #endif void read_from_cin() {} template <typename T, typename... Ts> void read_from_cin(T &value, Ts &...args) { std::cin >> value; read_from_cin(args...); } #define in(type, ...) \ type __VA_ARGS__; \ read_from_cin(__VA_ARGS__); template <typename T> void write_to_cout(const T &value) { std::cout << value << '\n'; } template <typename T, typename... Ts> void write_to_cout(const T &value, const Ts &...args) { std::cout << value << ' '; write_to_cout(args...); } #define out(...) write_to_cout(__VA_ARGS__); #define all(x) (x).begin(), (x).end() #define rep(i, n) for (int i = 0; i < (int)(n); ++i) using ll = long long; template <typename T> using V = std::vector<T>; template <typename T> using VV = V<V<T>>; template <typename T, class DS> class Mo { public: Mo(DS &ds) : ds_(ds), index_(0), prev_(-1) {} std::pair<int, T> ProcessQuery() { if (prev_ == -1) { int bin = sqrt(index_); sort(queries_.begin(), queries_.end(), [&bin](const Query &a, const Query &b) { int ba = a.begin / bin, bb = b.begin / bin; if (ba != bb) return ba < bb; // return a.end < b.end; if (ba % 2 == 0) { return a.end < b.end; } else { return a.end > b.end; } }); prev_ = 0; const Query &q = queries_[0]; Add(q.begin, q.end); return {q.index, ds_.Get()}; } const Query &p = queries_[prev_]; const Query &c = queries_[prev_ + 1]; ++prev_; Add(c.begin, p.begin); Del(p.begin, c.begin); Add(p.end, c.end); Del(c.end, p.end); return {c.index, ds_.Get()}; } void AddQuery(int begin, int end) { queries_.push_back({begin, end, index_++}); } private: struct Query { int begin, end, index; }; void Add(int begin, int end) { for (int i = begin; i < end; ++i) { ds_.Add(i); } } void Del(int begin, int end) { for (int i = begin; i < end; ++i) { ds_.Del(i); } } DS &ds_; int index_, prev_; std::vector<Query> queries_; }; using namespace std; struct DS { DS(int n) : c(n), kinds(n), unique_kinds(0) {} void Add(int i) { if (kinds[c[i] - 1]++ == 0) { ++unique_kinds; } } void Del(int i) { if (--kinds[c[i] - 1] == 0) { --unique_kinds; } } int Get() const { return unique_kinds; } V<int> c; V<int> kinds; int unique_kinds; }; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); in(int, n, q); DS ds(n); rep(i, n) cin >> ds.c[i]; Mo<int, DS> mo(ds); rep(i, q) { in(int, l, r); mo.AddQuery(l - 1, r); } vector<int> ans(q); rep(i, q) { auto [idx, x] = mo.ProcessQuery(); ans[idx] = x; } rep(i, q) out(ans[i]); }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> // #undef DEBUG // Uncomment this line to forcefully disable debug print. #if DEBUG template <typename T> void debug(T value) { std::cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { std::cerr << value << ", "; debug(args...); } #define dbg(...) \ do { \ cerr << #__VA_ARGS__ << ": "; \ debug(__VA_ARGS__); \ cerr << " (L" << __LINE__ << ")" << endl; \ } while (0) #else #define dbg(...) #endif void read_from_cin() {} template <typename T, typename... Ts> void read_from_cin(T &value, Ts &...args) { std::cin >> value; read_from_cin(args...); } #define in(type, ...) \ type __VA_ARGS__; \ read_from_cin(__VA_ARGS__); template <typename T> void write_to_cout(const T &value) { std::cout << value << std::endl; } template <typename T, typename... Ts> void write_to_cout(const T &value, const Ts &...args) { std::cout << value << ' '; write_to_cout(args...); } #define out(...) write_to_cout(__VA_ARGS__); #define all(x) (x).begin(), (x).end() #define rep(i, n) for (int i = 0; i < (int)(n); ++i) using ll = long long; template <typename T> using V = std::vector<T>; template <typename T> using VV = V<V<T>>; using namespace std; using P = pair<int, int>; struct Q { P lr; int bucket; int i; int kinds; }; void Erase(map<int, int> &m, int v) { auto it = m.find(v); assert(it != m.end()); --it->second; if (it->second == 0) { m.erase(it); } } int main() { in(int, n, q); V<int> c(n); rep(i, n) cin >> c[i]; auto bucket = [](int i) { return int(sqrt(i)); }; V<Q> qs(q); rep(i, q) { cin >> qs[i].lr.first >> qs[i].lr.second; --qs[i].lr.first; --qs[i].lr.second; qs[i].i = i; qs[i].bucket = bucket(qs[i].lr.first); } sort(all(qs), [](const Q &l, const Q &r) { if (l.bucket != r.bucket) { return l.bucket < r.bucket; } return l.lr.second < r.lr.second; }); vector<int> kinds(n + 1); int n_kinds = 0; auto add = [&](int i) { if (kinds[c[i]] == 0) { ++n_kinds; } ++kinds[c[i]]; }; auto del = [&](int i) { --kinds[c[i]]; if (kinds[c[i]] == 0) { --n_kinds; } }; rep(i, q) { auto [L, R] = qs[i].lr; if (i == 0) { for (int j = L; j <= R; ++j) { add(j); } } else { auto [PL, PR] = qs[i - 1].lr; if (PL < L) { for (int j = PL; j < L; ++j) { del(j); } } else { for (int j = L; j < PL; ++j) { add(j); } } if (PR < R) { for (int j = R; j > PR; --j) { add(j); } } else { for (int j = PR; j > R; --j) { del(j); } } } qs[i].kinds = n_kinds; } sort(all(qs), [](const Q &l, const Q &r) { return l.i < r.i; }); rep(i, q) { out(qs[i].kinds); } /* rep(i, n) { int b = bucket(i); if (i > 0) { int pb = bucket(i - 1); if (pb < b) { buckets[b] = buckets[pb]; } } buckets[b].insert(c[i]); } return 0; int lri = 0; while (lri < q) { } */ }
#include <bits/stdc++.h> // #undef DEBUG // Uncomment this line to forcefully disable debug print. #if DEBUG template <typename T> void debug(T value) { std::cerr << value; } template <typename T, typename... Ts> void debug(T value, Ts... args) { std::cerr << value << ", "; debug(args...); } #define dbg(...) \ do { \ cerr << #__VA_ARGS__ << ": "; \ debug(__VA_ARGS__); \ cerr << " (L" << __LINE__ << ")" << endl; \ } while (0) #else #define dbg(...) #endif void read_from_cin() {} template <typename T, typename... Ts> void read_from_cin(T &value, Ts &...args) { std::cin >> value; read_from_cin(args...); } #define in(type, ...) \ type __VA_ARGS__; \ read_from_cin(__VA_ARGS__); template <typename T> void write_to_cout(const T &value) { std::cout << value << std::endl; } template <typename T, typename... Ts> void write_to_cout(const T &value, const Ts &...args) { std::cout << value << ' '; write_to_cout(args...); } #define out(...) write_to_cout(__VA_ARGS__); #define all(x) (x).begin(), (x).end() #define rep(i, n) for (int i = 0; i < (int)(n); ++i) using ll = long long; template <typename T> using V = std::vector<T>; template <typename T> using VV = V<V<T>>; using namespace std; using P = pair<int, int>; struct Q { P lr; int bucket; int i; int kinds; }; void Erase(map<int, int> &m, int v) { auto it = m.find(v); assert(it != m.end()); --it->second; if (it->second == 0) { m.erase(it); } } int main() { in(int, n, q); V<int> c(n); rep(i, n) cin >> c[i]; auto bucket = [](int i) { return int(sqrt(i)); }; V<Q> qs(q); rep(i, q) { cin >> qs[i].lr.first >> qs[i].lr.second; --qs[i].lr.first; --qs[i].lr.second; qs[i].i = i; qs[i].bucket = bucket(qs[i].lr.first); } sort(all(qs), [](const Q &l, const Q &r) { if (l.bucket != r.bucket) { return l.bucket < r.bucket; } return l.lr.second < r.lr.second; }); vector<int> kinds(n + 1); int n_kinds = 0; auto add = [&](int i) { if (kinds[c[i]] == 0) { ++n_kinds; } ++kinds[c[i]]; }; auto del = [&](int i) { --kinds[c[i]]; if (kinds[c[i]] == 0) { --n_kinds; } }; rep(i, q) { auto [L, R] = qs[i].lr; if (i == 0 || qs[i].bucket != qs[i - 1].bucket) { n_kinds = 0; rep(i, n) kinds[i + 1] = 0; for (int j = L; j <= R; ++j) { add(j); } } else { auto [PL, PR] = qs[i - 1].lr; if (PL < L) { for (int j = PL; j < L; ++j) { del(j); } } else { for (int j = L; j < PL; ++j) { add(j); } } if (PR < R) { for (int j = R; j > PR; --j) { add(j); } } else { for (int j = PR; j > R; --j) { del(j); } } } qs[i].kinds = n_kinds; } sort(all(qs), [](const Q &l, const Q &r) { return l.i < r.i; }); rep(i, q) { out(qs[i].kinds); } /* rep(i, n) { int b = bucket(i); if (i > 0) { int pb = bucket(i - 1); if (pb < b) { buckets[b] = buckets[pb]; } } buckets[b].insert(c[i]); } return 0; int lri = 0; while (lri < q) { } */ }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> #define ll long long int #define ld long double #define pi pair<int, int> #define all(x) x.begin(), x.end() #define allr(x) x.rbegin(), x.rend() #define sz(x) ((int)x.size()) #define ln(x) ((int)x.length()) #define mp make_pair #define pb push_back #define ff first #define ss second #define endl '\n' #define dbg(x) cout << #x << ": " << x << endl #define clr(x, v) memset(x, v, sizeof(x)) #define FASTIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); using namespace std; const double eps = 1e-9; const double PI = acos(-1.0); const ll mod = 1e9 + 7; const int MAXN = 5e5 + 5; struct query { int l, r, idx; }; int arr[MAXN], t[4 * MAXN], last[MAXN], ans[MAXN]; vector<query> queries; int update(int v, int tl, int tr, int pos, int val) { if (tl == tr) t[v] += val; else { int tm = (tl + tr) / 2; if (pos <= tm) update(2 * v, tl, tm, pos, val); else update(2 * v + 1, tm + 1, tr, pos, val); t[v] = t[2 * v] + t[2 * v + 1]; } } int sum(int v, int tl, int tr, int l, int r) { if (l > r) return 0; if (tl == l && tr == r) { return t[v]; } else { int tm = (tl + tr) / 2; return sum(2 * v, tl, tm, l, min(r, tm)) + sum(2 * v + 1, tm + 1, tr, max(l, tm + 1), r); } } void cp() { int n, q; cin >> n >> q; for (int i = 0; i < n; i++) cin >> arr[i]; for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--, r--; queries.pb({l, r, i}); } sort(all(queries), [&](query a, query b) { return a.r < b.r; }); clr(last, -1); int pos = 0; for (int i = 0; i < n; i++) { if (last[arr[i]] != -1) update(1, 0, n - 1, last[arr[i]], -1); // reduce 1 at pos last[arr[i]] last[arr[i]] = i; update(1, 0, n - 1, last[arr[i]], 1); while (pos < q && queries[pos].r == i) ans[queries[pos].idx] = sum(1, 0, n - 1, queries[pos].l, queries[pos].r), pos++; } for (int i = 0; i < q; i++) cout << ans[i] << endl; } int main() { FASTIO; int t; t = 1; // cin >> t; while (t--) { cp(); } return 0; }
#include <bits/stdc++.h> #define ll long long int #define ld long double #define pi pair<int, int> #define all(x) x.begin(), x.end() #define allr(x) x.rbegin(), x.rend() #define sz(x) ((int)x.size()) #define ln(x) ((int)x.length()) #define mp make_pair #define pb push_back #define ff first #define ss second #define endl '\n' #define dbg(x) cout << #x << ": " << x << endl #define clr(x, v) memset(x, v, sizeof(x)) #define FASTIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); using namespace std; const double eps = 1e-9; const double PI = acos(-1.0); const ll mod = 1e9 + 7; const int MAXN = 5e5 + 5; struct query { int l, r, idx; }; int arr[MAXN], t[4 * MAXN], last[MAXN], ans[MAXN]; vector<query> queries; void update(int v, int tl, int tr, int pos, int val) { if (tl == tr) t[v] += val; else { int tm = (tl + tr) / 2; if (pos <= tm) update(2 * v, tl, tm, pos, val); else update(2 * v + 1, tm + 1, tr, pos, val); t[v] = t[2 * v] + t[2 * v + 1]; } } int sum(int v, int tl, int tr, int l, int r) { if (l > r) return 0; if (tl == l && tr == r) { return t[v]; } else { int tm = (tl + tr) / 2; return sum(2 * v, tl, tm, l, min(r, tm)) + sum(2 * v + 1, tm + 1, tr, max(l, tm + 1), r); } } void cp() { int n, q; cin >> n >> q; for (int i = 0; i < n; i++) cin >> arr[i]; for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--, r--; queries.pb({l, r, i}); } sort(all(queries), [&](query a, query b) { return a.r < b.r; }); clr(last, -1); int pos = 0; for (int i = 0; i < n; i++) { if (last[arr[i]] != -1) update(1, 0, n - 1, last[arr[i]], -1); // reduce 1 at pos last[arr[i]] last[arr[i]] = i; update(1, 0, n - 1, last[arr[i]], 1); while (pos < q && queries[pos].r == i) ans[queries[pos].idx] = sum(1, 0, n - 1, queries[pos].l, queries[pos].r), pos++; } for (int i = 0; i < q; i++) cout << ans[i] << endl; } int main() { FASTIO; int t; t = 1; // cin >> t; while (t--) { cp(); } return 0; }
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0
p02599
C++
Runtime Error
#include <algorithm> #include <cmath> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; struct node { int l, r, s, d; } t[500005]; void pushup(int x) { t[x].s = t[x << 1].s + t[(x << 1) + 1].s; return; } void pushdown(int x) { int mid = (t[x].l + t[x].r) >> 1; int d = t[x].d; t[x << 1].d += d; t[(x << 1) + 1].d += d; t[x << 1].s += (mid - t[x].l + 1) * d; t[(x << 1) + 1].s += (t[x].r - mid) * d; return; } void build(int i, int l, int r) { t[i].l = l; t[i].r = r; t[i].d = 0; if (l == r) { t[i].s = 0; return; } int mid = l + r >> 1; build(i << 1, l, mid); build((i << 1) + 1, mid + 1, r); pushup(i); return; } int getsum(int i, int l, int r) { int mid = t[i].l + t[i].r >> 1; if (l <= t[i].l && t[i].r <= r) { return t[i].s; } int d = t[i].d; if (!d) pushdown(i); int ret = 0; if (mid >= l) ret += getsum(i << 1, l, r); if (mid < r) ret += getsum((i << 1) + 1, l, r); return ret; } void update(int i, int l, int r, int del) { if (t[i].l == t[i].r) { t[i].d += del; t[i].s += (t[i].l - t[i].r + 1) * del; return; } int mid = t[i].l + t[i].r >> 1; if (!t[i].d) pushdown(i); if (mid >= l) update(i << 1, l, r, del); if (mid < r) update((i << 1) + 1, l, r, del); pushup(i); } int main() { int n, q; cin >> n >> q; vector<int> vc(n + 1, 0); for (int i = 0; i < n; i++) { scanf("%d", &vc[i + 1]); } vector<pair<pair<int, int>, int>> vp; vector<int> res(q + 1, 0); for (int i = 0; i < q; i++) { int l, r; scanf("%d%d", &l, &r); vp.push_back(make_pair(make_pair(r, l), i + 1)); } sort(vp.begin(), vp.end()); build(1, 1, n); vector<int> last(n + 1, -1); int id = 1; for (int i = 0; i < q; i++) { int l = vp[i].first.second, r = vp[i].first.first; int index = vp[i].second; while (id <= r) { int c = vc[id]; if (last[c] == -1) { last[c] = id; // update_tree(um, id, 1, 1, n); update(1, id, id, 1); } else { // update_tree(um, last[c], -1, 1, n); // update_tree(um, id, 1, 1, n); update(1, last[c], last[c], -1); update(1, id, id, 1); last[c] = id; } id++; } // res[index] = query_tree(um, l, r, 1, n); res[index] = getsum(1, l, r); } for (int i = 1; i <= q; i++) { printf("%d\n", res[i]); } }
#include <algorithm> #include <cmath> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; struct node { int l, r, s, d; } t[2000005]; void pushup(int x) { t[x].s = t[x << 1].s + t[(x << 1) + 1].s; return; } void pushdown(int x) { int mid = (t[x].l + t[x].r) >> 1; int d = t[x].d; t[x << 1].d += d; t[(x << 1) + 1].d += d; t[x << 1].s += (mid - t[x].l + 1) * d; t[(x << 1) + 1].s += (t[x].r - mid) * d; return; } void build(int i, int l, int r) { t[i].l = l; t[i].r = r; t[i].d = 0; if (l == r) { t[i].s = 0; return; } int mid = l + r >> 1; build(i << 1, l, mid); build((i << 1) + 1, mid + 1, r); pushup(i); return; } int getsum(int i, int l, int r) { int mid = t[i].l + t[i].r >> 1; if (l <= t[i].l && t[i].r <= r) { return t[i].s; } int d = t[i].d; if (!d) pushdown(i); int ret = 0; if (mid >= l) ret += getsum(i << 1, l, r); if (mid < r) ret += getsum((i << 1) + 1, l, r); return ret; } void update(int i, int l, int r, int del) { if (t[i].l == t[i].r) { t[i].d += del; t[i].s += (t[i].l - t[i].r + 1) * del; return; } int mid = t[i].l + t[i].r >> 1; if (!t[i].d) pushdown(i); if (mid >= l) update(i << 1, l, r, del); if (mid < r) update((i << 1) + 1, l, r, del); pushup(i); } int main() { int n, q; cin >> n >> q; vector<int> vc(n + 1, 0); for (int i = 0; i < n; i++) { scanf("%d", &vc[i + 1]); } vector<pair<pair<int, int>, int>> vp; vector<int> res(q + 1, 0); for (int i = 0; i < q; i++) { int l, r; scanf("%d%d", &l, &r); vp.push_back(make_pair(make_pair(r, l), i + 1)); } sort(vp.begin(), vp.end()); build(1, 1, n); vector<int> last(n + 1, -1); int id = 1; for (int i = 0; i < q; i++) { int l = vp[i].first.second, r = vp[i].first.first; int index = vp[i].second; while (id <= r) { int c = vc[id]; if (last[c] == -1) { last[c] = id; // update_tree(um, id, 1, 1, n); update(1, id, id, 1); } else { // update_tree(um, last[c], -1, 1, n); // update_tree(um, id, 1, 1, n); update(1, last[c], last[c], -1); update(1, id, id, 1); last[c] = id; } id++; } // res[index] = query_tree(um, l, r, 1, n); res[index] = getsum(1, l, r); } for (int i = 1; i <= q; i++) { printf("%d\n", res[i]); } }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < n; i++) #define ll long long using namespace std; typedef pair<int, int> P; typedef pair<ll, ll> LP; const int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1}; const int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1}; const int INF = 1000000000; const ll LINF = 1000000000000000000; // 1e18 const ll MOD = 1000000007; const ll MOD2 = 998244353; const double PI = acos(-1.0); const double EPS = 1e-10; template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } // template<class T> inline void add(T &a, T b){a = ((a+b) % MOD + MOD) % MOD;}; /* ----------------------- DEBUG FUNCTION ---------------------------- */ #define DUMPOUT cerr void dump_function() { DUMPOUT << ' '; } void dump_function(bool a) { DUMPOUT << a; } void dump_function(int a) { DUMPOUT << a; } void dump_function(long long a) { DUMPOUT << a; } void dump_function(char a) { DUMPOUT << a; } void dump_function(string &a) { DUMPOUT << a; } void dump_function(double a) { DUMPOUT << a; } template <class T> void dump_function(const vector<T> &); template <class T, size_t size> void dump_function(const array<T, size> &); template <class T, class L> void dump_function(const pair<T, L> &p); template <class T, size_t size> void dump_function(const T (&)[size]); template <class T> void dump_function(const vector<T> &a) { if (a.empty()) return; dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } DUMPOUT << endl; } template <class T> void dump_function(const deque<T> &a) { if (a.empty()) return; dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } } template <class T, size_t size> void dump_function(const array<T, size> &a) { dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } } template <class T, class L> void dump_function(const pair<T, L> &p) { DUMPOUT << '('; dump_function(p.first); DUMPOUT << ","; dump_function(p.second); DUMPOUT << ')'; } template <class T> void dump_function(set<T> &x) { for (auto e : x) dump_function(e), DUMPOUT << " "; DUMPOUT << endl; } template <class T> void dump_function(multiset<T> &x) { for (auto e : x) dump_function(e), DUMPOUT << " "; DUMPOUT << endl; } template <class T, size_t size> void dump_function(const T (&a)[size]) { dump_function(a[0]); for (auto i = a; ++i != end(a);) { DUMPOUT << " "; dump_function(*i); } } template <class T> void dump_function(const T &a) { DUMPOUT << a; } int dump_out() { DUMPOUT << '\n'; return 0; } template <class T> int dump_out(const T &t) { dump_function(t); DUMPOUT << '\n'; return 0; } template <class Head, class... Tail> int dump_out(const Head &head, const Tail &...tail) { dump_function(head); DUMPOUT << ' '; dump_out(tail...); return 0; } #ifdef DEBUG_ #define dump(x) \ DUMPOUT << #x << ": "; \ dump_function(x); \ DUMPOUT << endl; void dumps() {} template <class T> void dumps(const T &t) { dump_function(t); DUMPOUT << " "; } template <class Head, class... Tail> void dumps(const Head &head, const Tail &...tail) { dump_function(head); DUMPOUT << ' '; dump_out(tail...); } #else #define dump(x) template <class... T> void dumps(const T &...) {} #endif /* ----------------------- DEBUG FUNCTION ---------------------------- */ template <int MOD> struct Fp { long long val; constexpr Fp(long long v = 0) noexcept : val(v % MOD) { if (val < 0) val += MOD; } constexpr int getmod() { return MOD; } constexpr Fp operator-() const noexcept { return val ? MOD - val : 0; } constexpr Fp operator+(const Fp &r) const noexcept { return Fp(*this) += r; } constexpr Fp operator-(const Fp &r) const noexcept { return Fp(*this) -= r; } constexpr Fp operator*(const Fp &r) const noexcept { return Fp(*this) *= r; } constexpr Fp operator/(const Fp &r) const noexcept { return Fp(*this) /= r; } constexpr Fp &operator+=(const Fp &r) noexcept { val += r.val; if (val >= MOD) val -= MOD; return *this; } constexpr Fp &operator-=(const Fp &r) noexcept { val -= r.val; if (val < 0) val += MOD; return *this; } constexpr Fp &operator*=(const Fp &r) noexcept { val = val * r.val % MOD; return *this; } constexpr Fp &operator/=(const Fp &r) noexcept { long long a = r.val, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } val = val * u % MOD; if (val < 0) val += MOD; return *this; } constexpr bool operator==(const Fp &r) const noexcept { return this->val == r.val; } constexpr bool operator!=(const Fp &r) const noexcept { return this->val != r.val; } friend constexpr ostream &operator<<(ostream &os, const Fp<MOD> &x) noexcept { return os << x.val; } friend constexpr Fp<MOD> modpow(const Fp<MOD> &a, long long n) noexcept { if (n == 0) return 1; auto t = modpow(a, n / 2); t = t * t; if (n & 1) t = t * a; return t; } }; template <class T> struct BiCoef { vector<T> fact_, inv_, finv_; constexpr BiCoef() {} constexpr BiCoef(int n) noexcept : fact_(n, 1), inv_(n, 1), finv_(n, 1) { init(n); } constexpr void init(int n) noexcept { fact_.assign(n, 1), inv_.assign(n, 1), finv_.assign(n, 1); int MOD = fact_[0].getmod(); for (int i = 2; i < n; i++) { fact_[i] = fact_[i - 1] * i; inv_[i] = -inv_[MOD % i] * (MOD / i); finv_[i] = finv_[i - 1] * inv_[i]; } } constexpr T com(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[k] * finv_[n - k]; } constexpr T fact(int n) const noexcept { if (n < 0) return 0; return fact_[n]; } constexpr T inv(int n) const noexcept { if (n < 0) return 0; return inv_[n]; } constexpr T finv(int n) const noexcept { if (n < 0) return 0; return finv_[n]; } constexpr T perm(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[n - k]; } }; using mint = Fp<MOD>; BiCoef<mint> bc; // using vec = vector<mint>; // using mat = vector<vec>; struct Mo { vector<int> left, right, order; vector<bool> v; vector<int> A; vector<int> cnt; vector<int> ans; int num; int width; int nl, nr; Mo(int n, int q, vector<int> a) : width((int)sqrt(n)), order(q), cnt(n, 0), A(a), ans(q), nl(0), nr(0), num(0), v(n) { iota(begin(order), end(order), 0); } /* [l, r) */ void insert(int l, int r) { left.push_back(l); right.push_back(r); } /* クエリをソートし、操作を行う */ void build() { assert(left.size() == order.size()); sort(begin(order), end(order), [&](int a, int b) { if (left[a] / width != left[b] / width) return left[a] < left[b]; return right[a] < right[b]; }); for (auto idx : order) process(idx); } /* クエリを1つ分進めて, ansに入れる */ void process(int idx) { // if(ptr == order.size()) return (-1); // const auto id = order[ptr]; while (nl > left[idx]) distribute(--nl); while (nr < right[idx]) distribute(nr++); while (nl < left[idx]) distribute(nl++); while (nr > right[idx]) distribute(--nr); ans[idx] = num; // return (order[ptr++]); } inline void distribute(int idx) { v[idx].flip(); if (v[idx]) add(idx); else del(idx); } /* add と delを問題ごとに書く */ /* add(idx) : A[idx]を区間に新たに加えるとどうなるかを更新する */ /* del(idx) : A[idx]を区間から除くとどうなるかを更新 */ void add(int idx) { if (cnt[A[idx]]++ == 0) ++num; } void del(int idx) { if (--cnt[A[idx]] == 0) --num; } }; void solve() { int N, Q; cin >> N >> Q; vector<int> A(N); REP(i, N) cin >> A[i]; Mo mo(N, Q, A); REP(i, Q) { int l, r; cin >> l >> r; mo.insert(--l, r); } mo.build(); for (auto x : mo.ans) cout << x << '\n'; } int main() { cin.tie(0); ios::sync_with_stdio(false); solve(); // int T; cin >> T; REP(t,T) solve(); }
#include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < n; i++) #define ll long long using namespace std; typedef pair<int, int> P; typedef pair<ll, ll> LP; const int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1}; const int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1}; const int INF = 1000000000; const ll LINF = 1000000000000000000; // 1e18 const ll MOD = 1000000007; const ll MOD2 = 998244353; const double PI = acos(-1.0); const double EPS = 1e-10; template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } // template<class T> inline void add(T &a, T b){a = ((a+b) % MOD + MOD) % MOD;}; /* ----------------------- DEBUG FUNCTION ---------------------------- */ #define DUMPOUT cerr void dump_function() { DUMPOUT << ' '; } void dump_function(bool a) { DUMPOUT << a; } void dump_function(int a) { DUMPOUT << a; } void dump_function(long long a) { DUMPOUT << a; } void dump_function(char a) { DUMPOUT << a; } void dump_function(string &a) { DUMPOUT << a; } void dump_function(double a) { DUMPOUT << a; } template <class T> void dump_function(const vector<T> &); template <class T, size_t size> void dump_function(const array<T, size> &); template <class T, class L> void dump_function(const pair<T, L> &p); template <class T, size_t size> void dump_function(const T (&)[size]); template <class T> void dump_function(const vector<T> &a) { if (a.empty()) return; dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } DUMPOUT << endl; } template <class T> void dump_function(const deque<T> &a) { if (a.empty()) return; dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } } template <class T, size_t size> void dump_function(const array<T, size> &a) { dump_function(a[0]); for (auto i = a.begin(); ++i != a.end();) { DUMPOUT << " "; dump_function(*i); } } template <class T, class L> void dump_function(const pair<T, L> &p) { DUMPOUT << '('; dump_function(p.first); DUMPOUT << ","; dump_function(p.second); DUMPOUT << ')'; } template <class T> void dump_function(set<T> &x) { for (auto e : x) dump_function(e), DUMPOUT << " "; DUMPOUT << endl; } template <class T> void dump_function(multiset<T> &x) { for (auto e : x) dump_function(e), DUMPOUT << " "; DUMPOUT << endl; } template <class T, size_t size> void dump_function(const T (&a)[size]) { dump_function(a[0]); for (auto i = a; ++i != end(a);) { DUMPOUT << " "; dump_function(*i); } } template <class T> void dump_function(const T &a) { DUMPOUT << a; } int dump_out() { DUMPOUT << '\n'; return 0; } template <class T> int dump_out(const T &t) { dump_function(t); DUMPOUT << '\n'; return 0; } template <class Head, class... Tail> int dump_out(const Head &head, const Tail &...tail) { dump_function(head); DUMPOUT << ' '; dump_out(tail...); return 0; } #ifdef DEBUG_ #define dump(x) \ DUMPOUT << #x << ": "; \ dump_function(x); \ DUMPOUT << endl; void dumps() {} template <class T> void dumps(const T &t) { dump_function(t); DUMPOUT << " "; } template <class Head, class... Tail> void dumps(const Head &head, const Tail &...tail) { dump_function(head); DUMPOUT << ' '; dump_out(tail...); } #else #define dump(x) template <class... T> void dumps(const T &...) {} #endif /* ----------------------- DEBUG FUNCTION ---------------------------- */ template <int MOD> struct Fp { long long val; constexpr Fp(long long v = 0) noexcept : val(v % MOD) { if (val < 0) val += MOD; } constexpr int getmod() { return MOD; } constexpr Fp operator-() const noexcept { return val ? MOD - val : 0; } constexpr Fp operator+(const Fp &r) const noexcept { return Fp(*this) += r; } constexpr Fp operator-(const Fp &r) const noexcept { return Fp(*this) -= r; } constexpr Fp operator*(const Fp &r) const noexcept { return Fp(*this) *= r; } constexpr Fp operator/(const Fp &r) const noexcept { return Fp(*this) /= r; } constexpr Fp &operator+=(const Fp &r) noexcept { val += r.val; if (val >= MOD) val -= MOD; return *this; } constexpr Fp &operator-=(const Fp &r) noexcept { val -= r.val; if (val < 0) val += MOD; return *this; } constexpr Fp &operator*=(const Fp &r) noexcept { val = val * r.val % MOD; return *this; } constexpr Fp &operator/=(const Fp &r) noexcept { long long a = r.val, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } val = val * u % MOD; if (val < 0) val += MOD; return *this; } constexpr bool operator==(const Fp &r) const noexcept { return this->val == r.val; } constexpr bool operator!=(const Fp &r) const noexcept { return this->val != r.val; } friend constexpr ostream &operator<<(ostream &os, const Fp<MOD> &x) noexcept { return os << x.val; } friend constexpr Fp<MOD> modpow(const Fp<MOD> &a, long long n) noexcept { if (n == 0) return 1; auto t = modpow(a, n / 2); t = t * t; if (n & 1) t = t * a; return t; } }; template <class T> struct BiCoef { vector<T> fact_, inv_, finv_; constexpr BiCoef() {} constexpr BiCoef(int n) noexcept : fact_(n, 1), inv_(n, 1), finv_(n, 1) { init(n); } constexpr void init(int n) noexcept { fact_.assign(n, 1), inv_.assign(n, 1), finv_.assign(n, 1); int MOD = fact_[0].getmod(); for (int i = 2; i < n; i++) { fact_[i] = fact_[i - 1] * i; inv_[i] = -inv_[MOD % i] * (MOD / i); finv_[i] = finv_[i - 1] * inv_[i]; } } constexpr T com(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[k] * finv_[n - k]; } constexpr T fact(int n) const noexcept { if (n < 0) return 0; return fact_[n]; } constexpr T inv(int n) const noexcept { if (n < 0) return 0; return inv_[n]; } constexpr T finv(int n) const noexcept { if (n < 0) return 0; return finv_[n]; } constexpr T perm(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[n - k]; } }; using mint = Fp<MOD>; BiCoef<mint> bc; // using vec = vector<mint>; // using mat = vector<vec>; struct Mo { vector<int> left, right, order; vector<bool> v; vector<int> A; vector<int> cnt; vector<int> ans; int num; int width; int nl, nr; Mo(int n, int q, vector<int> a) : width((int)sqrt(n)), order(q), cnt(n, 0), A(a), ans(q), nl(0), nr(0), num(0), v(n) { iota(begin(order), end(order), 0); } /* [l, r) */ void insert(int l, int r) { left.push_back(l); right.push_back(r); } /* クエリをソートし、操作を行う */ void build() { assert(left.size() == order.size()); sort(begin(order), end(order), [&](int a, int b) { if (left[a] / width != left[b] / width) return left[a] < left[b]; if ((left[a] / width) & 1) return right[a] < right[b]; return right[a] > right[b]; }); for (auto idx : order) process(idx); } /* クエリを1つ分進めて, ansに入れる */ void process(int idx) { // if(ptr == order.size()) return (-1); // const auto id = order[ptr]; while (nl > left[idx]) distribute(--nl); while (nr < right[idx]) distribute(nr++); while (nl < left[idx]) distribute(nl++); while (nr > right[idx]) distribute(--nr); ans[idx] = num; // return (order[ptr++]); } inline void distribute(int idx) { v[idx].flip(); if (v[idx]) add(idx); else del(idx); } /* add と delを問題ごとに書く */ /* add(idx) : A[idx]を区間に新たに加えるとどうなるかを更新する */ /* del(idx) : A[idx]を区間から除くとどうなるかを更新 */ void add(int idx) { if (cnt[A[idx]]++ == 0) ++num; } void del(int idx) { if (--cnt[A[idx]] == 0) --num; } }; void solve() { int N, Q; cin >> N >> Q; vector<int> A(N); REP(i, N) cin >> A[i]; Mo mo(N, Q, A); REP(i, Q) { int l, r; cin >> l >> r; mo.insert(--l, r); } mo.build(); for (auto x : mo.ans) cout << x << '\n'; } int main() { cin.tie(0); ios::sync_with_stdio(false); solve(); // int T; cin >> T; REP(t,T) solve(); }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> #define rep(a, b, c) for (int a = b; a <= c; a++) #define per(a, b, c) for (int a = b; a >= c; a--) #define ios \ ; \ ios::sync_with_stdio(false); \ cin.tie(0); #define pb push_back #define mk make_pair #define fi first #define se second #define mem(a, b) memset(a, b, sizeof(a)) #define inf 0x3f3f3f3f #define INF 0x3f3f3f3f3f3f3f3f #define ls(x) (x << 1) #define rs(x) (ls(x) | 1) #define eps 1e-11 using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<ll, ll> pll; typedef pair<int, int> pii; typedef vector<int> VI; typedef double db; mt19937 rnd(random_device{}()); const int mod = 1e9 + 7; const int N = 1e5 + 5; const int M = 2e6 + 5; inline ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } inline ll lcm(ll a, ll b) { return a * b / gcd(a, b); } inline ll ksm(ll x, ll y) { ll res = 1; while (y) { if (y & 1) res = res * x % mod; x = x * x % mod; y >>= 1; } return res; } int a[N], b[N], rt[N * 20], ls[N * 20], rs[N * 20], sum[N * 20], vis[N * 20]; int n, q, k; int id; void build(int &o, int l, int r) { o = ++id; sum[o] = 0; if (l == r) return; int m = (l + r) >> 1; build(ls[o], l, m); build(rs[o], m + 1, r); } void update(int &o, int l, int r, int last, int pos, int val) { o = ++id; ls[o] = ls[last]; rs[o] = rs[last]; sum[o] = sum[last] + val; if (l == r) return; int m = (l + r) >> 1; if (pos <= m) update(ls[o], l, m, ls[last], pos, val); else update(rs[o], m + 1, r, rs[last], pos, val); } int query(int pos, int root, int l, int r) { if (l == r) return sum[root]; int m = (l + r) >> 1; if (m >= pos) return sum[rs[root]] + query(pos, ls[root], l, m); else return query(pos, rs[root], m + 1, r); } void solve() { int l, r; scanf("%d%d", &l, &r); printf("%d\n", query(l, rt[r], 1, n)); } int main() { memset(vis, 0, sizeof(vis)); scanf("%d%d", &n, &q); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); id = 0; build(rt[0], 1, n); for (int i = 1; i <= n; i++) { if (!vis[a[i]]) update(rt[i], 1, n, rt[i - 1], i, 1); else { int pos = vis[a[i]]; int temp; update(temp, 1, n, rt[i - 1], pos, -1); update(rt[i], 1, n, temp, i, 1); } vis[a[i]] = i; } while (q--) solve(); return 0; } /* a b a+b+c*2 a a+b*2+c*4 a+b+c*2 a+b+c*4 */ // // _ooOoo_ // o8888888o // 88" . "88 // (| -_- |) // O\ = /O // ____/`---'\____ // .' \| |// `. // / \||| : |||// \ // / _||||| -:- |||||- \ // | | \ - /// | | // | \_| ''\---/'' | | // \ .-\__ `-` ___/-. / // ___`. .' /--.--\ `. . __ // ."" '< `.___\_<|>_/___.' >'"". // | | : `- \`.;`\ _ /`;.`/ - ` : | | // \ \ `-. \_ __\ /__ _/ .-` / / // ======`-.____`-.___\_____/___.-`____.-'====== // `=---=' // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ // 佛祖保佑 永无BUG
#include <bits/stdc++.h> #define rep(a, b, c) for (int a = b; a <= c; a++) #define per(a, b, c) for (int a = b; a >= c; a--) #define ios \ ; \ ios::sync_with_stdio(false); \ cin.tie(0); #define pb push_back #define mk make_pair #define fi first #define se second #define mem(a, b) memset(a, b, sizeof(a)) #define inf 0x3f3f3f3f #define INF 0x3f3f3f3f3f3f3f3f #define ls(x) (x << 1) #define rs(x) (ls(x) | 1) #define eps 1e-11 using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<ll, ll> pll; typedef pair<int, int> pii; typedef vector<int> VI; typedef double db; mt19937 rnd(random_device{}()); const int mod = 1e9 + 7; const int N = 2e6 + 5; const int M = 2e6 + 5; inline ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } inline ll lcm(ll a, ll b) { return a * b / gcd(a, b); } inline ll ksm(ll x, ll y) { ll res = 1; while (y) { if (y & 1) res = res * x % mod; x = x * x % mod; y >>= 1; } return res; } int a[N], b[N], rt[N * 20], ls[N * 20], rs[N * 20], sum[N * 20], vis[N * 20]; int n, q, k; int id; void build(int &o, int l, int r) { o = ++id; sum[o] = 0; if (l == r) return; int m = (l + r) >> 1; build(ls[o], l, m); build(rs[o], m + 1, r); } void update(int &o, int l, int r, int last, int pos, int val) { o = ++id; ls[o] = ls[last]; rs[o] = rs[last]; sum[o] = sum[last] + val; if (l == r) return; int m = (l + r) >> 1; if (pos <= m) update(ls[o], l, m, ls[last], pos, val); else update(rs[o], m + 1, r, rs[last], pos, val); } int query(int pos, int root, int l, int r) { if (l == r) return sum[root]; int m = (l + r) >> 1; if (m >= pos) return sum[rs[root]] + query(pos, ls[root], l, m); else return query(pos, rs[root], m + 1, r); } void solve() { int l, r; scanf("%d%d", &l, &r); printf("%d\n", query(l, rt[r], 1, n)); } int main() { memset(vis, 0, sizeof(vis)); scanf("%d%d", &n, &q); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); id = 0; build(rt[0], 1, n); for (int i = 1; i <= n; i++) { if (!vis[a[i]]) update(rt[i], 1, n, rt[i - 1], i, 1); else { int pos = vis[a[i]]; int temp; update(temp, 1, n, rt[i - 1], pos, -1); update(rt[i], 1, n, temp, i, 1); } vis[a[i]] = i; } while (q--) solve(); return 0; } /* a b a+b+c*2 a a+b*2+c*4 a+b+c*2 a+b+c*4 */ // // _ooOoo_ // o8888888o // 88" . "88 // (| -_- |) // O\ = /O // ____/`---'\____ // .' \| |// `. // / \||| : |||// \ // / _||||| -:- |||||- \ // | | \ - /// | | // | \_| ''\---/'' | | // \ .-\__ `-` ___/-. / // ___`. .' /--.--\ `. . __ // ."" '< `.___\_<|>_/___.' >'"". // | | : `- \`.;`\ _ /`;.`/ - ` : | | // \ \ `-. \_ __\ /__ _/ .-` / / // ======`-.____`-.___\_____/___.-`____.-'====== // `=---=' // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ // 佛祖保佑 永无BUG
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p02599
C++
Time Limit Exceeded
#include <algorithm> #include <cstdio> #include <cstring> #include <iostream> using namespace std; typedef long long ll; const int N = 5e5 + 4; int n, m; int root[N], sum[N * 100], lc[N * 100], rc[N * 100]; int tim; int nxt[N]; inline int read() { int x = 0, f = 1; char c = getchar(); while (c < '0' || c > '9') { if (c == '-') f = -1; c = getchar(); } while (c >= '0' && c <= '9') x = x * 10 + c - '0', c = getchar(); return x * f; } inline void pushup(int rt) { sum[rt] = sum[lc[rt]] + sum[rc[rt]]; } inline void build(int &rt, int l, int r) { rt = ++tim; if (l == r) return; int mid = l + r >> 1; build(lc[rt], l, mid); build(rc[rt], mid + 1, r); } inline void modify(int &rt, int pre, int l, int r, int pos, int val) { rt = ++tim; lc[rt] = lc[pre]; rc[rt] = rc[pre]; sum[rt] = sum[pre] + val; if (l == r) return; int mid = l + r >> 1; if (pos <= mid) modify(lc[rt], lc[pre], l, mid, pos, val); else modify(rc[rt], rc[pre], mid + 1, r, pos, val); pushup(rt); } inline int query(int rt, int l, int r, int L) { if (l == r) return sum[rt]; int mid = l + r >> 1; if (mid >= L) return sum[rc[rt]] + query(lc[rt], l, mid, L); else return query(rc[rt], mid + 1, r, L); } int main() { freopen("f3.txt", "r", stdin); n = read(), m = read(); build(root[0], 1, n); for (register int i = 1; i <= n; ++i) { int x = read(); if (!nxt[x]) { modify(root[i], root[i - 1], 1, n, i, 1); } else { int temp; modify(temp, root[i - 1], 1, n, nxt[x], -1); modify(root[i], temp, 1, n, i, 1); } nxt[x] = i; } while (m--) { int x = read(), y = read(); printf("%d\n", query(root[y], 1, n, x)); } return 0; }
#include <algorithm> #include <cstdio> #include <cstring> #include <iostream> using namespace std; typedef long long ll; const int N = 5e5 + 4; int n, m; int root[N], sum[N * 100], lc[N * 100], rc[N * 100]; int tim; int nxt[N]; inline int read() { int x = 0, f = 1; char c = getchar(); while (c < '0' || c > '9') { if (c == '-') f = -1; c = getchar(); } while (c >= '0' && c <= '9') x = x * 10 + c - '0', c = getchar(); return x * f; } inline void pushup(int rt) { sum[rt] = sum[lc[rt]] + sum[rc[rt]]; } inline void build(int &rt, int l, int r) { rt = ++tim; if (l == r) return; int mid = l + r >> 1; build(lc[rt], l, mid); build(rc[rt], mid + 1, r); } inline void modify(int &rt, int pre, int l, int r, int pos, int val) { rt = ++tim; lc[rt] = lc[pre]; rc[rt] = rc[pre]; sum[rt] = sum[pre] + val; if (l == r) return; int mid = l + r >> 1; if (pos <= mid) modify(lc[rt], lc[pre], l, mid, pos, val); else modify(rc[rt], rc[pre], mid + 1, r, pos, val); pushup(rt); } inline int query(int rt, int l, int r, int L) { if (l == r) return sum[rt]; int mid = l + r >> 1; if (mid >= L) return sum[rc[rt]] + query(lc[rt], l, mid, L); else return query(rc[rt], mid + 1, r, L); } int main() { // freopen("f3.txt","r",stdin); n = read(), m = read(); build(root[0], 1, n); for (register int i = 1; i <= n; ++i) { int x = read(); if (!nxt[x]) { modify(root[i], root[i - 1], 1, n, i, 1); } else { int temp; modify(temp, root[i - 1], 1, n, nxt[x], -1); modify(root[i], temp, 1, n, i, 1); } nxt[x] = i; } while (m--) { int x = read(), y = read(); printf("%d\n", query(root[y], 1, n, x)); } return 0; }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; const int MAX_N = 3e4, MAX_Q = 2e5, MAX_AI = 1e6, OFFSET = 10; int N, Q, BLOCK_SIZE, current_ans, arr[MAX_N + OFFSET], ans[MAX_Q + OFFSET], frec[MAX_AI + OFFSET]; struct Query { int left, right, idx; Query(){}; Query(int left_, int right_, int idx_) : left(left_), right(right_), idx(idx_) {} bool operator<(const Query &other) const { int this_block = this->left / BLOCK_SIZE; int other_block = other.left / BLOCK_SIZE; if (this_block != other_block) return this_block < other_block; return this->right < other.right; } } query[MAX_Q + OFFSET]; void print() { for (int i = 0; i < Q; i++) printf("%d\n", ans[i]); } void add(const int &num) { if (0 == frec[num]) current_ans++; frec[num]++; } void remove(const int &num) { frec[num]--; if (0 == frec[num]) current_ans--; } void MoAlgorithm() { BLOCK_SIZE = sqrt(N); sort(query, query + Q); int mo_left = 0, mo_right = -1; for (int i = 0; i < Q; i++) { while (mo_right < query[i].right) add(arr[++mo_right]); while (mo_right > query[i].right) remove(arr[mo_right--]); while (mo_left < query[i].left) remove(arr[mo_left++]); while (mo_left > query[i].left) add(arr[--mo_left]); ans[query[i].idx] = current_ans; } } void readInput() { scanf("%d %d", &N, &Q); for (int i = 0; i < N; i++) scanf("%d", arr + i); for (int i = 0, left_, right_; i < Q; i++) { scanf("%d %d", &left_, &right_); query[i] = Query(--left_, --right_, i); } } int main() { readInput(); MoAlgorithm(); print(); return (0); }
#include <bits/stdc++.h> using namespace std; const int MAX_N = 5e5 + 1, MAX_Q = 5e5 + 1, MAX_AI = 5e5 + 1, OFFSET = 10; int N, Q, BLOCK_SIZE, current_ans, arr[MAX_N + OFFSET], ans[MAX_Q + OFFSET], frec[MAX_AI + OFFSET]; struct Query { int left, right, idx; Query(){}; Query(int left_, int right_, int idx_) : left(left_), right(right_), idx(idx_) {} bool operator<(const Query &other) const { int this_block = this->left / BLOCK_SIZE; int other_block = other.left / BLOCK_SIZE; if (this_block != other_block) return this_block < other_block; return this->right < other.right; } } query[MAX_Q + OFFSET]; void print() { for (int i = 0; i < Q; i++) printf("%d\n", ans[i]); } void add(const int &num) { if (0 == frec[num]) current_ans++; frec[num]++; } void remove(const int &num) { frec[num]--; if (0 == frec[num]) current_ans--; } void MoAlgorithm() { BLOCK_SIZE = sqrt(N); sort(query, query + Q); int mo_left = 0, mo_right = -1; for (int i = 0; i < Q; i++) { while (mo_right < query[i].right) add(arr[++mo_right]); while (mo_right > query[i].right) remove(arr[mo_right--]); while (mo_left < query[i].left) remove(arr[mo_left++]); while (mo_left > query[i].left) add(arr[--mo_left]); ans[query[i].idx] = current_ans; } } void readInput() { scanf("%d %d", &N, &Q); for (int i = 0; i < N; i++) scanf("%d", arr + i); for (int i = 0, left_, right_; i < Q; i++) { scanf("%d %d", &left_, &right_); query[i] = Query(--left_, --right_, i); } } int main() { readInput(); MoAlgorithm(); print(); return (0); }
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p02599
C++
Runtime Error
// This problem is the same as DQUERY: https://www.spoj.com/problems/DQUERY/ #include <bits/stdc++.h> using namespace std; typedef unsigned long long ull; typedef long long ll; typedef int Int; typedef pair<Int, Int> pii; typedef pair<Int, double> pid; typedef pair<double, double> pdd; typedef pair<Int, pii> pip; typedef pair<pii, Int> ppi; typedef pair<double, Int> pdp; typedef vector<Int> veci; typedef vector<double> vecd; typedef vector<int> veci; typedef vector<ll> vecll; typedef vector<double> vecd; typedef vector<pii> vecpii; typedef vector<ppi> vecppi; typedef vector<veci> mati; typedef vector<vecll> matll; typedef vector<vecd> matd; #define PB(x) push_back(x) #define EB(x) emplace_back(x) #define ALL(x) x.begin(), x.end() #define SZ(x) (x).size() #define CLR(x) memset(x, 0, sizeof x) #define pdebug() printf("%d\n", __LINE__) #define REP(i, a, b) for (int i = (a); i <= (b); i++) #define FORO(i, n) REP(i, 0, (int)n - 1) #define FORI(i, n) REP(i, 1, (int)n) #define FORIT(i, t) for (auto i = t.begin(); i != t.end(); i++) #define eps 1e-6 #define sqr(x) ((x) * (x)) #define dist(_a, _b) sqrt(sqr(_a.A - _b.A) + sqr(_a.B - _b.B)) #define norm(_a) sqrt(sqr(_a.A) + sqr(_a.B)) #define DEBUG 1 #if DEBUG #define DUMP(a) \ do { \ std::cout << #a " = " << (a) << ", "; \ } while (false) #define DUMPLN(a) \ do { \ std::cout << #a " = " << (a) << std::endl; \ } while (false) #else #define DUMP(a) #define DUMPLN(a) #endif template <typename T, typename U> inline void getMin(T &a, U b) { if (a > b) a = b; } template <typename T, typename U> inline void getMax(T &a, U b) { if (a < b) a = b; } template <typename T> vector<T> getVector(const int n) { return vector<T>(n); } template <typename T> vector<T> getVector(const int n, const T a) { return vector<T>(n, a); } template <typename T> vector<T> getEmptyVector() { return vector<T>(); } template <typename T> void appendAll(vector<T> &a, vector<T> b) { a.insert(a.end(), b.begin(), b.end()); } template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; }; #define X first #define Y second const int dx[4] = {1, -1, 0, 0}; const int dy[4] = {0, 0, 1, -1}; const ll MOD = 1000000007; const int inf = 1 << 27; const ll llinf = 1LL << 50; const int NIL = -inf; int popcount(int x) { return __builtin_popcount(x); } const int MAXN = 1 << 19; const int MAXLOGN = 19; int pos[MAXN]; int tree[MAXN]; struct NODE { int v; int L, R; } dat[2 * MAXN * MAXLOGN]; int ndat; int build(int l, int r) { int idx = ndat++; if (r - l == 1) { dat[idx].v = 0; dat[idx].L = dat[idx].R = -1; } else { dat[idx].v = 0; dat[idx].L = build(l, (r + l) / 2); dat[idx].R = build((r + l) / 2, r); } return idx; } int update(int ix, int l, int r, int k, int v) { if (k == -1) return -1; int idx = ndat++; int mid = (l + r) / 2; if (ix < mid) { dat[idx].L = update(ix, l, (l + r) / 2, dat[k].L, v); dat[idx].R = dat[k].R; } else { dat[idx].L = dat[k].L; dat[idx].R = update(ix, (l + r) / 2, r, dat[k].R, v); } dat[idx].v = dat[k].v + v; return idx; } int query(int lo, int l, int r, int id) { if (r <= lo) return 0; if (lo <= l) { return dat[id].v; } else { return query(lo, l, (l + r) / 2, dat[id].L) + query(lo, (l + r) / 2, r, dat[id].R); } } int main() { ios::sync_with_stdio(false); cin.tie(0); int N, Q; cin >> N >> Q; tree[0] = build(1, N + 1); for (int i = 1; i <= N; i++) { int x; cin >> x; int posx = pos[x]; if (posx != 0) { tree[i] = update(i, 1, N + 1, update(posx, 1, N + 1, tree[i - 1], -1), 1); } else { tree[i] = update(i, 1, N + 1, tree[i - 1], 1); } pos[x] = i; } for (int qq = 0; qq < Q; qq++) { int l, r; cin >> l >> r; cout << query(l, 1, N + 1, tree[r]) << endl; } return 0; }
// This problem is the same as DQUERY: https://www.spoj.com/problems/DQUERY/ #include <bits/stdc++.h> using namespace std; typedef unsigned long long ull; typedef long long ll; typedef int Int; typedef pair<Int, Int> pii; typedef pair<Int, double> pid; typedef pair<double, double> pdd; typedef pair<Int, pii> pip; typedef pair<pii, Int> ppi; typedef pair<double, Int> pdp; typedef vector<Int> veci; typedef vector<double> vecd; typedef vector<int> veci; typedef vector<ll> vecll; typedef vector<double> vecd; typedef vector<pii> vecpii; typedef vector<ppi> vecppi; typedef vector<veci> mati; typedef vector<vecll> matll; typedef vector<vecd> matd; #define PB(x) push_back(x) #define EB(x) emplace_back(x) #define ALL(x) x.begin(), x.end() #define SZ(x) (x).size() #define CLR(x) memset(x, 0, sizeof x) #define pdebug() printf("%d\n", __LINE__) #define REP(i, a, b) for (int i = (a); i <= (b); i++) #define FORO(i, n) REP(i, 0, (int)n - 1) #define FORI(i, n) REP(i, 1, (int)n) #define FORIT(i, t) for (auto i = t.begin(); i != t.end(); i++) #define eps 1e-6 #define sqr(x) ((x) * (x)) #define dist(_a, _b) sqrt(sqr(_a.A - _b.A) + sqr(_a.B - _b.B)) #define norm(_a) sqrt(sqr(_a.A) + sqr(_a.B)) #define DEBUG 1 #if DEBUG #define DUMP(a) \ do { \ std::cout << #a " = " << (a) << ", "; \ } while (false) #define DUMPLN(a) \ do { \ std::cout << #a " = " << (a) << std::endl; \ } while (false) #else #define DUMP(a) #define DUMPLN(a) #endif template <typename T, typename U> inline void getMin(T &a, U b) { if (a > b) a = b; } template <typename T, typename U> inline void getMax(T &a, U b) { if (a < b) a = b; } template <typename T> vector<T> getVector(const int n) { return vector<T>(n); } template <typename T> vector<T> getVector(const int n, const T a) { return vector<T>(n, a); } template <typename T> vector<T> getEmptyVector() { return vector<T>(); } template <typename T> void appendAll(vector<T> &a, vector<T> b) { a.insert(a.end(), b.begin(), b.end()); } template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; }; #define X first #define Y second const int dx[4] = {1, -1, 0, 0}; const int dy[4] = {0, 0, 1, -1}; const ll MOD = 1000000007; const int inf = 1 << 27; const ll llinf = 1LL << 50; const int NIL = -inf; int popcount(int x) { return __builtin_popcount(x); } const int MAXN = 1 << 20; const int MAXLOGN = 20; int pos[MAXN]; int tree[MAXN]; struct NODE { int v; int L, R; } dat[2 * MAXN * MAXLOGN]; int ndat; int build(int l, int r) { int idx = ndat++; if (r - l == 1) { dat[idx].v = 0; dat[idx].L = dat[idx].R = -1; } else { dat[idx].v = 0; dat[idx].L = build(l, (r + l) / 2); dat[idx].R = build((r + l) / 2, r); } return idx; } int update(int ix, int l, int r, int k, int v) { if (k == -1) return -1; int idx = ndat++; int mid = (l + r) / 2; if (ix < mid) { dat[idx].L = update(ix, l, (l + r) / 2, dat[k].L, v); dat[idx].R = dat[k].R; } else { dat[idx].L = dat[k].L; dat[idx].R = update(ix, (l + r) / 2, r, dat[k].R, v); } dat[idx].v = dat[k].v + v; return idx; } int query(int lo, int l, int r, int id) { if (r <= lo) return 0; if (lo <= l) { return dat[id].v; } else { return query(lo, l, (l + r) / 2, dat[id].L) + query(lo, (l + r) / 2, r, dat[id].R); } } int main() { ios::sync_with_stdio(false); cin.tie(0); int N, Q; cin >> N >> Q; tree[0] = build(1, N + 1); for (int i = 1; i <= N; i++) { int x; cin >> x; int posx = pos[x]; if (posx != 0) { tree[i] = update(i, 1, N + 1, update(posx, 1, N + 1, tree[i - 1], -1), 1); } else { tree[i] = update(i, 1, N + 1, tree[i - 1], 1); } pos[x] = i; } for (int qq = 0; qq < Q; qq++) { int l, r; cin >> l >> r; cout << query(l, 1, N + 1, tree[r]) << endl; } return 0; }
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-11
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> int main() { using namespace std; unsigned long N, Q; cin >> N >> Q; vector<unsigned long> c(N); for (auto &&i : c) { cin >> i; --i; } vector<tuple<unsigned long, unsigned long, unsigned long>> queries(Q); { unsigned long cnt{0}; for (auto &&[i, l, r] : queries) { cin >> l >> r; --l; i = cnt++; } } constexpr unsigned long B{3000}; sort(begin(queries), end(queries), [&B](const auto &lhs, const auto &rhs) { const auto &[i, li, ri] = lhs; const auto &[j, lj, rj] = rhs; return li / B == lj / B ? (li / B) & 1 ? ri > rj : ri < rj : li < lj; }); unsigned long nl{0}, nr{0}, now{0}; vector<unsigned long> cnt(N), ans(Q); for (const auto &[i, l, r] : queries) { while (nr < r) now += !cnt[c[nr++]]++; while (nr > r) now -= !--cnt[c[--nr]]; while (nl < l) now -= !--cnt[c[nl++]]; while (nl > l) now += !cnt[c[--nl]]++; ans[i] = now; } for (const auto &i : ans) cout << i << endl; return 0; }
#include <bits/stdc++.h> int main() { using namespace std; unsigned long N, Q; cin >> N >> Q; vector<unsigned long> c(N); for (auto &&i : c) { cin >> i; --i; } vector<tuple<unsigned long, unsigned long, unsigned long>> queries(Q); { unsigned long cnt{0}; for (auto &&[i, l, r] : queries) { cin >> l >> r; --l; i = cnt++; } } constexpr unsigned long B{2000}; sort(begin(queries), end(queries), [&B](const auto &lhs, const auto &rhs) { const auto &[i, li, ri] = lhs; const auto &[j, lj, rj] = rhs; return li / B == lj / B ? (li / B) & 1 ? ri > rj : ri < rj : li < lj; }); unsigned long nl{0}, nr{0}, now{0}; vector<unsigned long> cnt(N), ans(Q); for (const auto &[i, l, r] : queries) { while (nr < r) now += !cnt[c[nr++]]++; while (nr > r) now -= !--cnt[c[--nr]]; while (nl < l) now -= !--cnt[c[nl++]]; while (nl > l) now += !cnt[c[--nl]]++; ans[i] = now; } for (const auto &i : ans) cout << i << endl; return 0; }
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TLE
p02599
C++
Runtime Error
#include <bits/stdc++.h> #pragma GCC optimize(2) using namespace std; const int N = 6e6 + 10; inline int read() { int x = 0; char c = getchar(); while (c < '0' || c > '9') c = getchar(); while (c >= '0' && c <= '9') x = (x << 3) + (x << 1) + (c ^ 48), c = getchar(); return x; } void write(int x) { if (x >= 10) write(x / 10); putchar(x % 10 + 48); } struct Node { int sum, lc, rc; }; Node dat[N]; int tot; int insert(int pos, int v, int rt, int l, int r) { int p = ++tot; dat[p] = dat[rt]; if (r - l == 1) { dat[p].sum += v; return p; } int m = (l + r) >> 1; if (pos < m) dat[p].lc = insert(pos, v, dat[rt].lc, l, m); else dat[p].rc = insert(pos, v, dat[rt].rc, m, r); dat[p].sum = dat[dat[p].lc].sum + dat[dat[p].rc].sum; return p; } int query(int left, int rt, int l, int r) { if (left <= l) return dat[rt].sum; int m = (l + r) >> 1, sum = 0; if (left < m) sum += query(left, dat[rt].lc, l, m); sum += query(left, dat[rt].rc, m, r); return sum; } int last[N], root[N]; int main() { int n, q; n = read(); q = read(); for (int i = 1; i <= n; ++i) { int x = read(); if (last[x]) { root[i] = insert(last[x], -1, root[i - 1], 1, n + 1); root[i] = insert(i, 1, root[i], 1, n + 1); } else root[i] = insert(i, 1, root[i - 1], 1, n + 1); last[x] = i; } while (q--) { int x, y; x = read(); y = read(); write(query(x, root[y], 1, n + 1)); putchar('\n'); } return 0; }
#include <bits/stdc++.h> #pragma GCC optimize(2) using namespace std; const int N = 3e7 + 10; inline int read() { int x = 0; char c = getchar(); while (c < '0' || c > '9') c = getchar(); while (c >= '0' && c <= '9') x = (x << 3) + (x << 1) + (c ^ 48), c = getchar(); return x; } void write(int x) { if (x >= 10) write(x / 10); putchar(x % 10 + 48); } struct Node { int sum, lc, rc; }; Node dat[N]; int tot; int insert(int pos, int v, int rt, int l, int r) { int p = ++tot; dat[p] = dat[rt]; if (r - l == 1) { dat[p].sum += v; return p; } int m = (l + r) >> 1; if (pos < m) dat[p].lc = insert(pos, v, dat[rt].lc, l, m); else dat[p].rc = insert(pos, v, dat[rt].rc, m, r); dat[p].sum = dat[dat[p].lc].sum + dat[dat[p].rc].sum; return p; } int query(int left, int rt, int l, int r) { if (left <= l) return dat[rt].sum; int m = (l + r) >> 1, sum = 0; if (left < m) sum += query(left, dat[rt].lc, l, m); sum += query(left, dat[rt].rc, m, r); return sum; } int last[N], root[N]; int main() { int n, q; n = read(); q = read(); for (int i = 1; i <= n; ++i) { int x = read(); if (last[x]) { root[i] = insert(last[x], -1, root[i - 1], 1, n + 1); root[i] = insert(i, 1, root[i], 1, n + 1); } else root[i] = insert(i, 1, root[i - 1], 1, n + 1); last[x] = i; } while (q--) { int x, y; x = read(); y = read(); write(query(x, root[y], 1, n + 1)); putchar('\n'); } return 0; }
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-11
p02599
C++
Runtime Error
#include <algorithm> #include <iostream> #include <numeric> #include <string> #include <tuple> #include <utility> #include <vector> #define REP(i, a, b) for (int i = int(a); i < int(b); i++) using namespace std; using ll = long long int; using P = pair<ll, ll>; // clang-format off #ifdef _DEBUG_ #define dump(...) do{ cerr << __LINE__ << ":\t" << #__VA_ARGS__ << " = "; PPPPP(__VA_ARGS__); cerr << endl; } while(false) template<typename T> void PPPPP(T t) { cerr << t; } template<typename T, typename... S> void PPPPP(T t, S... s) { cerr << t << ", "; PPPPP(s...); } #else #define dump(...) do{ } while(false) #endif template<typename T> vector<T> make_v(size_t a, T b) { return vector<T>(a, b); } template<typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v(ts...))>(a, make_v(ts...)); } template<typename T> bool chmin(T &a, T b) { if (a > b) {a = b; return true; } return false; } template<typename T> bool chmax(T &a, T b) { if (a < b) {a = b; return true; } return false; } template<typename T> void print(T a) { cout << a << endl; } template<typename T, typename... Ts> void print(T a, Ts... ts) { cout << a << ' '; print(ts...); } template<typename T> istream &operator,(istream &in, T &t) { return in >> t; } // clang-format on #include <functional> template <typename T> class SegmentTreeOneAll { using Func = function<T(T, T)>; public: vector<T> data; int n; T init; Func update_func; Func query_func; SegmentTreeOneAll(int _n, T _init, Func up, Func qu) { init = _init; update_func = up; query_func = qu; for (n = 1; n < _n; n *= 2) ; data.resize(2 * n - 1, init); } void update(int pos, T val) { pos += n - 1; data[pos] = update_func(data[pos], val); while (pos > 0) { pos = (pos - 1) / 2; data[pos] = query_func(data[2 * pos + 1], data[2 * pos + 2]); } } T query(int l, int r) { T resL = init, resR = init; for (l += n - 1, r += n - 1; l < r; l = l / 2, r = (r - 1) / 2) { if (!(l & 1)) { resL = query_func(resL, data[l]); } if (!(r & 1)) { resR = query_func(data[r - 1], resR); } } return query_func(resL, resR); } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n, q; cin, n, q; vector<int> c(n); REP(i, 0, n) { cin, c[i]; c[i]--; } vector<vector<P>> Q(n); REP(i, 0, q) { int l, r; cin, l, r; Q[r - 1].emplace_back(l - 1, i); } vector<int> ans(n); auto add = [](ll a, ll b) { return a + b; }; auto update = [](ll a, ll b) { return b; }; SegmentTreeOneAll<ll> seg(n, 0LL, update, add); vector<int> last(n, -1); REP(i, 0, n) { if (last[c[i]] != -1) { seg.update(last[c[i]], 0); } seg.update(i, 1); last[c[i]] = i; for (auto [l, pos] : Q[i]) { ans[pos] = seg.query(l, i + 1); } } REP(i, 0, q) { print(ans[i]); } return 0; }
#include <algorithm> #include <iostream> #include <numeric> #include <string> #include <tuple> #include <utility> #include <vector> #define REP(i, a, b) for (int i = int(a); i < int(b); i++) using namespace std; using ll = long long int; using P = pair<ll, ll>; // clang-format off #ifdef _DEBUG_ #define dump(...) do{ cerr << __LINE__ << ":\t" << #__VA_ARGS__ << " = "; PPPPP(__VA_ARGS__); cerr << endl; } while(false) template<typename T> void PPPPP(T t) { cerr << t; } template<typename T, typename... S> void PPPPP(T t, S... s) { cerr << t << ", "; PPPPP(s...); } #else #define dump(...) do{ } while(false) #endif template<typename T> vector<T> make_v(size_t a, T b) { return vector<T>(a, b); } template<typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v(ts...))>(a, make_v(ts...)); } template<typename T> bool chmin(T &a, T b) { if (a > b) {a = b; return true; } return false; } template<typename T> bool chmax(T &a, T b) { if (a < b) {a = b; return true; } return false; } template<typename T> void print(T a) { cout << a << endl; } template<typename T, typename... Ts> void print(T a, Ts... ts) { cout << a << ' '; print(ts...); } template<typename T> istream &operator,(istream &in, T &t) { return in >> t; } // clang-format on #include <functional> template <typename T> class SegmentTreeOneAll { using Func = function<T(T, T)>; public: vector<T> data; int n; T init; Func update_func; Func query_func; SegmentTreeOneAll(int _n, T _init, Func up, Func qu) { init = _init; update_func = up; query_func = qu; for (n = 1; n < _n; n *= 2) ; data.resize(2 * n - 1, init); } void update(int pos, T val) { pos += n - 1; data[pos] = update_func(data[pos], val); while (pos > 0) { pos = (pos - 1) / 2; data[pos] = query_func(data[2 * pos + 1], data[2 * pos + 2]); } } T query(int l, int r) { T resL = init, resR = init; for (l += n - 1, r += n - 1; l < r; l = l / 2, r = (r - 1) / 2) { if (!(l & 1)) { resL = query_func(resL, data[l]); } if (!(r & 1)) { resR = query_func(data[r - 1], resR); } } return query_func(resL, resR); } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n, q; cin, n, q; vector<int> c(n); REP(i, 0, n) { cin, c[i]; c[i]--; } vector<vector<P>> Q(n); REP(i, 0, q) { int l, r; cin, l, r; Q[r - 1].emplace_back(l - 1, i); } vector<int> ans(q); auto add = [](ll a, ll b) { return a + b; }; auto update = [](ll a, ll b) { return b; }; SegmentTreeOneAll<ll> seg(n, 0LL, update, add); vector<int> last(n, -1); REP(i, 0, n) { if (last[c[i]] != -1) { seg.update(last[c[i]], 0); } seg.update(i, 1); last[c[i]] = i; for (auto [l, pos] : Q[i]) { ans[pos] = seg.query(l, i + 1); } } REP(i, 0, q) { print(ans[i]); } return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define LL long long #define sc(a) scanf("%d", &a) #define sc2(a, b) scanf("%d%d", &a, &b) #define sc3(a, b, c) scanf("%d%d%d", &a, &b, &c) #define scl(a) scanf("%lld", &a) #define scl2(a, b) scanf("%lld%lld", &a, &b) #define ss(a) scanf("%s", a) #define mem(a, b) memset(a, b, sizeof(a)) #define PII pair<int, int> using namespace std; const int N = 5e5 + 5; int a[N], rt[N]; int lc[N * 4], rc[N * 4], tot; LL sum[N * 4]; map<int, int> vis; void update(int &u, int x, int y, int p, LL v) { sum[tot] = sum[u] + v; lc[tot] = lc[u]; rc[tot] = rc[u]; u = tot++; if (x == y) return; int m = x + y >> 1; if (p <= m) update(lc[u], x, m, p, v); else update(rc[u], m + 1, y, p, v); } LL query(int u, int x, int y, int ql, int qr) { if (ql <= x && y <= qr) return sum[u]; int m = (x + y) >> 1; LL ans = 0; if (ql <= m) ans += query(lc[u], x, m, ql, qr); if (qr > m) ans += query(rc[u], m + 1, y, ql, qr); return ans; } int main() { int n, q; tot++; vis.clear(); scanf("%d%d", &n, &q); for (int i = 1; i <= n; i++) scanf("%lld", &a[i]); for (int i = 1; i <= n; i++) { rt[i] = rt[i - 1]; if (vis.find(a[i]) != vis.end()) { int tmp = rt[i - 1]; update(tmp, 1, n, vis[a[i]], -1); rt[i] = tmp; update(rt[i], 1, n, i, 1); } else { rt[i] = rt[i - 1]; update(rt[i], 1, n, i, 1); } vis[a[i]] = i; } while (q--) { int l, r; scanf("%d%d", &l, &r); printf("%lld\n", query(rt[r], 1, n, l, r)); } system("pause"); return 0; }
#include <bits/stdc++.h> using namespace std; #define LL long long #define sc(a) scanf("%d", &a) #define sc2(a, b) scanf("%d%d", &a, &b) #define sc3(a, b, c) scanf("%d%d%d", &a, &b, &c) #define scl(a) scanf("%lld", &a) #define scl2(a, b) scanf("%lld%lld", &a, &b) #define ss(a) scanf("%s", a) #define mem(a, b) memset(a, b, sizeof(a)) #define PII pair<int, int> using namespace std; const int N = 5e5 + 5; int a[N], rt[N]; int lc[N * 40], rc[N * 40], tot; LL sum[N * 40]; map<int, int> vis; void update(int &u, int x, int y, int p, LL v) { sum[tot] = sum[u] + v; lc[tot] = lc[u]; rc[tot] = rc[u]; u = tot++; if (x == y) return; int m = x + y >> 1; if (p <= m) update(lc[u], x, m, p, v); else update(rc[u], m + 1, y, p, v); } LL query(int u, int x, int y, int ql, int qr) { if (ql <= x && y <= qr) return sum[u]; int m = (x + y) >> 1; LL ans = 0; if (ql <= m) ans += query(lc[u], x, m, ql, qr); if (qr > m) ans += query(rc[u], m + 1, y, ql, qr); return ans; } int main() { int n, q; tot++; vis.clear(); scanf("%d%d", &n, &q); for (int i = 1; i <= n; i++) scanf("%lld", &a[i]); for (int i = 1; i <= n; i++) { rt[i] = rt[i - 1]; if (vis.find(a[i]) != vis.end()) { int tmp = rt[i - 1]; update(tmp, 1, n, vis[a[i]], -1); rt[i] = tmp; update(rt[i], 1, n, i, 1); } else { rt[i] = rt[i - 1]; update(rt[i], 1, n, i, 1); } vis[a[i]] = i; } while (q--) { int l, r; scanf("%d%d", &l, &r); printf("%lld\n", query(rt[r], 1, n, l, r)); } system("pause"); return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define REP(i, n) for (int i = 1; i <= n; i++) #define mod 1000000007 #define pb push_back #define ff first #define ss second #define ii pair<int, int> #define vi vector<int> #define vii vector<ii> #define lli long long int #define INF 1000000000 #define endl '\n' #define BLOCK 555 const double PI = 3.141592653589793238460; typedef std::complex<double> Complex; typedef std::valarray<Complex> CArray; using namespace std; struct query { int l; int r; int i; }; query Q[500001]; int ar[500001], ans[500001]; int fre[500001]; int cnt = 0; bool comp(query a, query b) { if (a.l / BLOCK != b.l / BLOCK) return a.l / BLOCK < b.l / BLOCK; return a.r < b.r; } void add(int pos) { fre[ar[pos]]++; if (fre[ar[pos]] == 1) cnt++; } void remove(int pos) { fre[ar[pos]]--; if (fre[ar[pos]] == 0) cnt--; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, q; cin >> n >> q; for (int i = 0; i < n; i++) cin >> ar[i]; for (int i = 0; i < q; i++) { cin >> Q[i].l >> Q[i].r; Q[i].i = i, Q[i].l--, Q[i].r--; } sort(Q, Q + q, comp); // why ML = 0 , and MR = -1? int ML = 0, MR = -1; for (int i = 0; i < q; i++) { int L = Q[i].l; int R = Q[i].r; while (ML > L) ML--, add(ML); while (MR < R) MR++, add(MR); while (ML < L) remove(ML), ML++; while (MR > R) remove(MR), MR--; ans[Q[i].i] = cnt; } for (int i = 0; i < q; i++) cout << ans[i] << '\n'; }
#include <bits/stdc++.h> #define REP(i, n) for (int i = 1; i <= n; i++) #define mod 1000000007 #define pb push_back #define ff first #define ss second #define ii pair<int, int> #define vi vector<int> #define vii vector<ii> #define lli long long int #define INF 1000000000 #define endl '\n' #define BLOCK 710 const double PI = 3.141592653589793238460; typedef std::complex<double> Complex; typedef std::valarray<Complex> CArray; using namespace std; struct query { int l; int r; int i; }; query Q[500001]; int ar[500001], ans[500001]; int fre[500001]; int cnt = 0; bool comp(query a, query b) { if (a.l / BLOCK != b.l / BLOCK) return a.l / BLOCK < b.l / BLOCK; return a.r < b.r; } void add(int pos) { fre[ar[pos]]++; if (fre[ar[pos]] == 1) cnt++; } void remove(int pos) { fre[ar[pos]]--; if (fre[ar[pos]] == 0) cnt--; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, q; cin >> n >> q; for (int i = 0; i < n; i++) cin >> ar[i]; for (int i = 0; i < q; i++) { cin >> Q[i].l >> Q[i].r; Q[i].i = i, Q[i].l--, Q[i].r--; } sort(Q, Q + q, comp); // why ML = 0 , and MR = -1? int ML = 0, MR = -1; for (int i = 0; i < q; i++) { int L = Q[i].l; int R = Q[i].r; while (ML > L) ML--, add(ML); while (MR < R) MR++, add(MR); while (ML < L) remove(ML), ML++; while (MR > R) remove(MR), MR--; ans[Q[i].i] = cnt; } for (int i = 0; i < q; i++) cout << ans[i] << '\n'; }
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TLE
p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int blk; struct node { int left, right; int index; }; static bool compare(node &p1, node &p2) { if (p1.left / blk == p2.left / blk) return p1.right < p2.right; return p1.left < p2.left; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n, m; cin >> n >> m; blk = sqrt(n); vector<int> a(n, 0); for (int i = 0; i < n; i++) cin >> a[i]; vector<node> q; q.resize(m); for (int i = 0; i < m; i++) { int l, r; cin >> l >> r; node p; p.left = l, p.right = r, p.index = i; q[i] = p; } sort(q.begin(), q.end(), compare); unordered_map<int, int> freq; vector<int> ans(m, 0); int ml = 0, mr = -1, count = 0; for (int i = 0; i < m; i++) { int l = q[i].left - 1, r = q[i].right - 1; int ind = q[i].index; while (ml > l) if (++freq[a[--ml]] == 1) count++; while (mr < r) if (++freq[a[++mr]] == 1) count++; while (ml < l) if (--freq[a[ml++]] == 0) count--; while (mr > r) if (--freq[a[mr--]] == 0) count--; ans[ind] = count; } for (auto &i : ans) cout << i << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int blk; struct node { int left, right; int index; }; static bool compare(node &p1, node &p2) { if (p1.left / blk == p2.left / blk) return p1.right < p2.right; return p1.left < p2.left; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n, m; cin >> n >> m; blk = sqrt(n); vector<int> a(n, 0); for (int i = 0; i < n; i++) cin >> a[i]; vector<node> q; q.resize(m); for (int i = 0; i < m; i++) { int l, r; cin >> l >> r; node p; p.left = l, p.right = r, p.index = i; q[i] = p; } sort(q.begin(), q.end(), compare); vector<int> freq(500001, 0); vector<int> ans(m, 0); int ml = 0, mr = -1, count = 0; for (int i = 0; i < m; i++) { int l = q[i].left - 1, r = q[i].right - 1; int ind = q[i].index; while (ml > l) if (++freq[a[--ml]] == 1) count++; while (mr < r) if (++freq[a[++mr]] == 1) count++; while (ml < l) if (--freq[a[ml++]] == 0) count--; while (mr > r) if (--freq[a[mr--]] == 0) count--; ans[ind] = count; } for (auto &i : ans) cout << i << endl; return 0; }
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TLE
p02599
C++
Time Limit Exceeded
#include <algorithm> #include <bitset> #include <cmath> #include <complex> #include <cstdio> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <string.h> #include <string> #include <sys/time.h> #include <tuple> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; #define endl '\n' #define ALL(v) (v).begin(), (v).end() #define RALL(v) (v).rbegin(), (v).rend() #define UNIQ(v) (v).erase(unique((v).begin(), (v).end()), (v).end()) typedef long long ll; typedef long double ld; typedef pair<int, int> P; typedef tuple<int, int, int> T; typedef complex<double> comp; typedef vector<vector<ld>> matrix; struct pairhash { public: template <typename T, typename U> size_t operator()(const pair<T, U> &x) const { size_t seed = hash<T>()(x.first); return hash<U>()(x.second) + 0x9e3779b9 + (seed << 6) + (seed >> 2); } }; const ll inf = 1e18 + 9; const ll mod = 998244353; const double eps = 1e-8; const double pi = acos(-1); int n, q; int c[500001]; int l[500001], r[500001]; int m[500001]; int k = 0; void add(int v) { if (m[c[v]] == 0) k++; m[c[v]]++; } void del(int v) { m[c[v]]--; if (m[c[v]] == 0) { k--; } } void solve() { int sq = max(1, n / (int)sqrt(q)); sq = max(1, sq - 10); vector<T> qi(q); for (int i = 0; i < q; i++) { qi[i] = T(l[i] / sq, r[i], i); } sort(ALL(qi)); int nl = 0, nr = 0; int res[q]; for (T &t : qi) { int i = get<2>(t); while (nr < r[i]) { add(nr); nr++; } while (nl > l[i]) { nl--; add(nl); } while (nl < l[i]) { del(nl); nl++; } while (nr > r[i]) { nr--; del(nr); } res[i] = k; } for (int i = 0; i < q; i++) { printf("%d\n", res[i]); } } void input() { scanf("%d%d", &n, &q); for (int i = 0; i < n; i++) scanf("%d", c + i); for (int i = 0; i < q; i++) { scanf("%d%d", l + i, r + i); l[i]--; } } int main() { input(); solve(); }
#include <algorithm> #include <bitset> #include <cmath> #include <complex> #include <cstdio> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <string.h> #include <string> #include <sys/time.h> #include <tuple> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; #define endl '\n' #define ALL(v) (v).begin(), (v).end() #define RALL(v) (v).rbegin(), (v).rend() #define UNIQ(v) (v).erase(unique((v).begin(), (v).end()), (v).end()) typedef long long ll; typedef long double ld; typedef pair<int, int> P; typedef tuple<int, int, int> T; typedef complex<double> comp; typedef vector<vector<ld>> matrix; struct pairhash { public: template <typename T, typename U> size_t operator()(const pair<T, U> &x) const { size_t seed = hash<T>()(x.first); return hash<U>()(x.second) + 0x9e3779b9 + (seed << 6) + (seed >> 2); } }; const ll inf = 1e18 + 9; const ll mod = 998244353; const double eps = 1e-8; const double pi = acos(-1); int n, q; int c[500001]; int l[500001], r[500001]; int m[500001]; int k = 0; void add(int v) { if (m[c[v]] == 0) k++; m[c[v]]++; } void del(int v) { m[c[v]]--; if (m[c[v]] == 0) { k--; } } void solve() { int sq = (int)sqrt(n); vector<T> qi(q); for (int i = 0; i < q; i++) { qi[i] = T(l[i] / sq, r[i], i); } sort(ALL(qi)); int nl = 0, nr = 0; int res[q]; for (T &t : qi) { int i = get<2>(t); while (nr < r[i]) { add(nr); nr++; } while (nl > l[i]) { nl--; add(nl); } while (nl < l[i]) { del(nl); nl++; } while (nr > r[i]) { nr--; del(nr); } res[i] = k; } for (int i = 0; i < q; i++) { printf("%d\n", res[i]); } } void input() { scanf("%d%d", &n, &q); for (int i = 0; i < n; i++) scanf("%d", c + i); for (int i = 0; i < q; i++) { scanf("%d%d", l + i, r + i); l[i]--; } } int main() { input(); solve(); }
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TLE
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> #include <cstring> #include <iostream> #include <map> using namespace std; const int MAXN = 5e5 + 5; const int M = MAXN * 20; int n, q, tot; int a[MAXN]; int T[MAXN * 4], lson[M], rson[M], c[M]; int build(int l, int r) { int root = tot++; c[root] = 0; if (l != r) { int mid = (l + r) >> 1; lson[root] = build(l, mid); rson[root] = build(mid + 1, r); } return root; } int update(int root, int pos, int val) { int newroot = tot++, tmp = newroot; c[newroot] = c[root] + val; int l = 1, r = n; while (l < r) { int mid = (l + r) >> 1; if (pos <= mid) { lson[newroot] = tot++; rson[newroot] = rson[root]; newroot = lson[newroot]; root = lson[root]; r = mid; } else { rson[newroot] = tot++; lson[newroot] = lson[root]; newroot = rson[newroot]; root = rson[root]; l = mid + 1; } c[newroot] = c[root] + val; } return tmp; } int query(int root, int pos) { int ret = 0; int l = 1, r = n; while (pos < r) { int mid = (l + r) >> 1; if (pos <= mid) { r = mid; root = lson[root]; } else { ret += c[lson[root]]; root = rson[root]; l = mid + 1; } } return ret + c[root]; } int main() { cin >> n >> q; tot = 0; for (int i = 1; i <= n; i++) scanf("%d", &a[i]); T[n + 1] = build(1, n); map<int, int> mp; for (int i = n; i >= 1; i--) { if (mp.find(a[i]) == mp.end()) { T[i] = update(T[i + 1], i, 1); } else { int tmp = update(T[i + 1], mp[a[i]], -1); T[i] = update(tmp, i, 1); } mp[a[i]] = i; } while (q--) { int l, r; scanf("%d%d", &l, &r); printf("%d\n", query(T[l], r)); } return 0; }
#include <algorithm> #include <cstdio> #include <cstring> #include <iostream> #include <map> using namespace std; const int MAXN = 5e5 + 5; const int M = MAXN * 100; int n, q, tot; int a[MAXN]; int T[MAXN * 4], lson[M], rson[M], c[M]; int build(int l, int r) { int root = tot++; c[root] = 0; if (l != r) { int mid = (l + r) >> 1; lson[root] = build(l, mid); rson[root] = build(mid + 1, r); } return root; } int update(int root, int pos, int val) { int newroot = tot++, tmp = newroot; c[newroot] = c[root] + val; int l = 1, r = n; while (l < r) { int mid = (l + r) >> 1; if (pos <= mid) { lson[newroot] = tot++; rson[newroot] = rson[root]; newroot = lson[newroot]; root = lson[root]; r = mid; } else { rson[newroot] = tot++; lson[newroot] = lson[root]; newroot = rson[newroot]; root = rson[root]; l = mid + 1; } c[newroot] = c[root] + val; } return tmp; } int query(int root, int pos) { int ret = 0; int l = 1, r = n; while (pos < r) { int mid = (l + r) >> 1; if (pos <= mid) { r = mid; root = lson[root]; } else { ret += c[lson[root]]; root = rson[root]; l = mid + 1; } } return ret + c[root]; } int main() { cin >> n >> q; tot = 0; for (int i = 1; i <= n; i++) scanf("%d", &a[i]); T[n + 1] = build(1, n); map<int, int> mp; for (int i = n; i >= 1; i--) { if (mp.find(a[i]) == mp.end()) { T[i] = update(T[i + 1], i, 1); } else { int tmp = update(T[i + 1], mp[a[i]], -1); T[i] = update(tmp, i, 1); } mp[a[i]] = i; } while (q--) { int l, r; scanf("%d%d", &l, &r); printf("%d\n", query(T[l], r)); } return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> #include <map> using std::map; const int MAXN = 40000, MAXLGN = 16; int N, Q; map<int, int> pos; int tree[MAXN]; int cant; struct node { int val, L, R, size; } buff[2 * MAXN * MAXLGN]; int build(int lo, int hi) { if (lo > hi) return 0; int idx = ++cant; int mid = (lo + hi) / 2; buff[idx] = (node){mid, build(lo, mid - 1), build(mid + 1, hi), 0}; return idx; } int update(int x, int val, int amount) { if (x == 0) return 0; int idx = ++cant; int L = buff[x].L; int R = buff[x].R; if (val < buff[x].val) L = update(L, val, amount); if (val > buff[x].val) R = update(R, val, amount); buff[idx] = (node){buff[x].val, L, R, buff[x].size + amount}; return idx; } int query(int x, int val) { if (val < buff[x].val) return query(buff[x].L, val) + buff[x].size - buff[buff[x].L].size; if (val > buff[x].val) return query(buff[x].R, val); return buff[x].size - buff[buff[x].L].size; } int main() { scanf("%d", &N), scanf("%d", &Q); tree[0] = build(1, N); for (int i = 1; i <= N; i++) { int x, posx; scanf("%d", &x); posx = pos[x]; if (posx != 0) tree[i] = update(update(tree[i - 1], posx, -1), i, +1); else tree[i] = update(tree[i - 1], i, +1); pos[x] = i; } while (Q--) { int lo, hi; scanf("%d %d", &lo, &hi); printf("%d\n", query(tree[hi], lo)); } return 0; }
#include <bits/stdc++.h> #include <map> using std::map; const int MAXN = 500005, MAXLGN = 20; int N, Q; map<int, int> pos; int tree[MAXN]; int cant; struct node { int val, L, R, size; } buff[2 * MAXN * MAXLGN]; int build(int lo, int hi) { if (lo > hi) return 0; int idx = ++cant; int mid = (lo + hi) / 2; buff[idx] = (node){mid, build(lo, mid - 1), build(mid + 1, hi), 0}; return idx; } int update(int x, int val, int amount) { if (x == 0) return 0; int idx = ++cant; int L = buff[x].L; int R = buff[x].R; if (val < buff[x].val) L = update(L, val, amount); if (val > buff[x].val) R = update(R, val, amount); buff[idx] = (node){buff[x].val, L, R, buff[x].size + amount}; return idx; } int query(int x, int val) { if (val < buff[x].val) return query(buff[x].L, val) + buff[x].size - buff[buff[x].L].size; if (val > buff[x].val) return query(buff[x].R, val); return buff[x].size - buff[buff[x].L].size; } int main() { scanf("%d", &N), scanf("%d", &Q); tree[0] = build(1, N); for (int i = 1; i <= N; i++) { int x, posx; scanf("%d", &x); posx = pos[x]; if (posx != 0) tree[i] = update(update(tree[i - 1], posx, -1), i, +1); else tree[i] = update(tree[i - 1], i, +1); pos[x] = i; } while (Q--) { int lo, hi; scanf("%d %d", &lo, &hi); printf("%d\n", query(tree[hi], lo)); } return 0; }
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p02599
C++
Runtime Error
#include <algorithm> #include <cmath> #include <cstdio> #include <iostream> using namespace std; const int N = 50010; int n, m, B, re, col[N], cnt[N], ans[N]; void add(int x) { re += !(cnt[x]++); } void del(int x) { re -= !(--cnt[x]); } struct Query { int l, r, id; bool operator<(Query &b) { return l / B == b.l / B ? r < b.r : l < b.l; } } q[N]; int main() { int i, l = 1, r = 0; cin >> n >> m; B = n / sqrt(m); for (i = 1; i <= n; ++i) { cin >> col[i]; } for (i = 0; i < m; ++i) { cin >> q[i].l >> q[i].r; q[i].id = i; } sort(q, q + m); for (i = 0; i < m; ++i) { if (q[i].l == q[i].r) { ans[q[i].id] = 1; continue; } while (l > q[i].l) add(col[--l]); while (r < q[i].r) add(col[++r]); while (l < q[i].l) del(col[l++]); while (r > q[i].r) del(col[r--]); ans[q[i].id] = re; } for (i = 0; i < m; ++i) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cmath> #include <cstdio> #include <iostream> using namespace std; const int N = 5e5 + 10; int n, m, B, re, col[N], cnt[N], ans[N]; void add(int x) { re += !(cnt[x]++); } void del(int x) { re -= !(--cnt[x]); } struct Query { int l, r, id; bool operator<(Query &b) { return l / B == b.l / B ? r < b.r : l < b.l; } } q[N]; int main() { int i, l = 1, r = 0; cin >> n >> m; B = n / sqrt(m); for (i = 1; i <= n; ++i) { cin >> col[i]; } for (i = 0; i < m; ++i) { cin >> q[i].l >> q[i].r; q[i].id = i; } sort(q, q + m); for (i = 0; i < m; ++i) { if (q[i].l == q[i].r) { ans[q[i].id] = 1; continue; } while (l > q[i].l) add(col[--l]); while (r < q[i].r) add(col[++r]); while (l < q[i].l) del(col[l++]); while (r > q[i].r) del(col[r--]); ans[q[i].id] = re; } for (i = 0; i < m; ++i) printf("%d\n", ans[i]); return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> #define ll long long using namespace std; const int e = 5e5 + 6; const int e1 = 5e5 + 2; struct kien { ll i, j, id, type; }; kien a[e + e1]; ll n, q; ll Bit[e]; ll res[e1]; bool lf(kien u, kien v) { return (u.j < v.j || (u.j == v.j && u.type < v.type)); } ll bit(ll vitri, ll val) { for (int i = vitri; i <= n; i += i & -i) Bit[i] += val; } ll getbit(ll vitri) { ll ans = 0; for (int i = vitri; i > 0; i -= i & -i) { ans += Bit[i]; } return ans; } int main() { cin >> n >> q; for (int i = 1; i <= n; i++) { cin >> a[i].i; a[i].j = i; a[i].type = -1; } map<ll, ll> last; for (int i = 1; i <= q; i++) { cin >> a[i + n].i >> a[i + n].j; a[i + n].id = i; } sort(a + 1, a + n + q + 1, lf); for (int i = 1; i <= q + n; i++) { if (a[i].type == -1) { bit(a[i].j, 1); if (last[a[i].i] > 0) { bit(last[a[i].i], -1); } last[a[i].i] = a[i].j; } else { res[a[i].id] = getbit(a[i].j) - getbit(a[i].i - 1); } } for (int i = 1; i <= q; i++) cout << res[i] << "\n"; }
#include <bits/stdc++.h> #define ll long long using namespace std; const int e = 5e5 + 6; const int e1 = 5e5 + 2; struct kien { ll i, j, id, type; }; kien a[e + e1]; ll n, q; ll Bit[e]; ll res[e1]; bool lf(kien u, kien v) { return (u.j < v.j || (u.j == v.j && u.type < v.type)); } void bit(ll vitri, ll val) { for (int i = vitri; i <= n; i += i & -i) Bit[i] += val; } ll getbit(ll vitri) { ll ans = 0; for (int i = vitri; i > 0; i -= i & -i) { ans += Bit[i]; } return ans; } int main() { cin >> n >> q; for (int i = 1; i <= n; i++) { cin >> a[i].i; a[i].j = i; a[i].type = -1; } map<ll, ll> last; for (int i = 1; i <= q; i++) { cin >> a[i + n].i >> a[i + n].j; a[i + n].id = i; } sort(a + 1, a + n + q + 1, lf); for (int i = 1; i <= q + n; i++) { if (a[i].type == -1) { bit(a[i].j, 1); if (last[a[i].i] > 0) { bit(last[a[i].i], -1); } last[a[i].i] = a[i].j; } else { res[a[i].id] = getbit(a[i].j) - getbit(a[i].i - 1); } } for (int i = 1; i <= q; i++) cout << res[i] << "\n"; }
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p02599
C++
Runtime Error
// main.cpp // ABC174F2 #include <algorithm> #include <iostream> #include <map> #include <tuple> #include <vector> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; using ll = long long; using P = pair<int, int>; // Binary Indexed Tree (Fenwick Tree) // 使い方 : BIT<int>bit // BIT<int> bt(n + 1); BITを初期化して // bt.add(x, 1); xに1を加算 // bt.sum(x); 0~xの累積和 template <typename T> // T: type of cost struct BIT { private: vector<T> array; const int n; public: BIT(int _n) : array(_n + 1, 0), n(_n) {} // iまでの累積和 T sum(int i) { T x = 0; while (i > 0) { x += array[i]; i -= i & -i; // LSBからの減算 } return x; } // iからjの区間和 T sum(int i, int j) { T ret_i = sum(i - 1); T ret_j = sum(j); return ret_j - ret_i; } // i番目にxを追加 void add(int i, T x) { while (i <= n) { array[i] += x; i += i & -i; // LSBへの加算 } } }; int main(int argc, const char *argv[]) { int n, q; cin >> n >> q; vector<int> c(n + 1); vector<int> p(n + 1, -1); // -1で初期化しておく vector<int> st(n + 1, 0); // st(s)=t 左がsで右がtの矢印 // 2回目の登場以降ならiをtとして登録 for (int i = 1; i <= n; i++) { cin >> c.at(i); if (p.at(c.at(i)) != -1) { st.at(p.at(c.at(i))) = i; } p.at(c.at(i)) = i; } /*rep(i,n){ cout<<i<<" "<<st.at(i)<<endl; }*/ // クエリを整理する // q(l)=(r,i) q(左端)=(右端、読み込みの順番) int l, r; vector<int> len(q); vector<vector<P>> query(n, vector<P>()); rep(i, q) { cin >> l >> r; query.at(l).emplace_back(r, i); len.at(i) = r - l + 1; } /*for(int i=n-1;i>=0;i--){ for(auto& x:query.at(i)){ cout<<i<<" "<<x.first<<" "<<x.second<<endl; } }*/ // BITを使う vector<int> cnt(q); BIT<int> bt(n + 1); // BITを初期化 for (int s = n; s >= 1; s--) { if (st.at(s) > 0) { bt.add(st.at(s), 1); } for (auto &x : query.at(s)) { cnt.at(x.second) = bt.sum(x.first); } } rep(i, q) { cout << len.at(i) - cnt.at(i) << endl; } return 0; }
// main.cpp // ABC174F2 #include <algorithm> #include <iostream> #include <map> #include <tuple> #include <vector> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; using ll = long long; using P = pair<int, int>; // Binary Indexed Tree (Fenwick Tree) // 使い方 : BIT<int>bit // BIT<int> bt(n + 1); BITを初期化して // bt.add(x, 1); xに1を加算 // bt.sum(x); 0~xの累積和 template <typename T> // T: type of cost struct BIT { private: vector<T> array; const int n; public: BIT(int _n) : array(_n + 1, 0), n(_n) {} // iまでの累積和 T sum(int i) { T x = 0; while (i > 0) { x += array[i]; i -= i & -i; // LSBからの減算 } return x; } // iからjの区間和 T sum(int i, int j) { T ret_i = sum(i - 1); T ret_j = sum(j); return ret_j - ret_i; } // i番目にxを追加 void add(int i, T x) { while (i <= n) { array[i] += x; i += i & -i; // LSBへの加算 } } }; int main(int argc, const char *argv[]) { int n, q; cin >> n >> q; vector<int> c(n + 1); vector<int> p(n + 1, -1); // -1で初期化しておく vector<int> st(n + 1, 0); // st(s)=t 左がsで右がtの矢印 // 2回目の登場以降ならiをtとして登録 for (int i = 1; i <= n; i++) { cin >> c.at(i); if (p.at(c.at(i)) != -1) { st.at(p.at(c.at(i))) = i; } p.at(c.at(i)) = i; } /*rep(i,n){ cout<<i<<" "<<st.at(i)<<endl; }*/ // クエリを整理する // q(l)=(r,i) q(左端)=(右端、読み込みの順番) int l, r; vector<int> len(q); vector<vector<P>> query(n + 1, vector<P>()); // lの値によってクエリを整理する rep(i, q) { cin >> l >> r; query.at(l).emplace_back(r, i); len.at(i) = r - l + 1; } /*for(int i=n-1;i>=0;i--){ for(auto& x:query.at(i)){ cout<<i<<" "<<x.first<<" "<<x.second<<endl; } }*/ // BITを使う vector<int> cnt(q); BIT<int> bt(n + 1); // BITを初期化 for (int s = n; s >= 1; s--) { if (st.at(s) > 0) { bt.add(st.at(s), 1); } for (auto &x : query.at(s)) { cnt.at(x.second) = bt.sum(x.first); } } rep(i, q) { cout << len.at(i) - cnt.at(i) << endl; } return 0; }
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terminate called after throwing an instance of 'std::out_of_range' what(): vector::_M_range_check: __n (which is 4) >= this->size() (which is 4)
p02599
C++
Runtime Error
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[200001]; int n, m, a[100001], ans[200001]; int st[5 * 100001], used[1000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cstdio> #include <iostream> #define f first #define s second using namespace std; pair<int, pair<int, int>> q[500001]; int n, m, a[500001], ans[500001]; int st[25 * 100001], used[5000001]; int cmp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b) { if (a.s.f != b.s.f) return a.s.f < b.s.f; return a.f < b.f; } void update(int v, int l, int r, int x, int d) { if (l == r) { st[v] = d; return; } int mid = (l + r) / 2; if (x <= mid) update(v * 2, l, mid, x, d); else update(v * 2 + 1, mid + 1, r, x, d); st[v] = st[v * 2] + st[v * 2 + 1]; } int Find(int v, int A, int B, int l, int r) { if (l > B || r < A) return 0; if (A == l && B == r) return st[v]; int mid = (A + B) / 2; return Find(v * 2, A, mid, l, min(mid, r)) + Find(v * 2 + 1, mid + 1, B, max(mid + 1, l), r); } int main() { scanf("%d", &n); scanf("%d", &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= m; i++) scanf("%d %d", &q[i].f, &q[i].s.f), q[i].s.s = i; sort(q + 1, q + m + 1, cmp); int j = 1; for (int i = 1; i <= m; i++) { while (j <= q[i].s.f) { if (!used[a[j]]) { update(1, 1, n, j, 1); used[a[j]] = j; } else { update(1, 1, n, used[a[j]], 0); update(1, 1, n, j, 1); used[a[j]] = j; } j++; } ans[q[i].s.s] = Find(1, 1, n, q[i].f, q[i].s.f); } for (int i = 1; i <= m; i++) printf("%d\n", ans[i]); return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define REP(i, a, n) for (int i = (a); i < (int)(n); i++) #define rep(i, n) REP(i, 0, n) #define FOR(it, c) \ for (__typeof((c).begin()) it = (c).begin(); it != (c).end(); ++it) #define ALLOF(c) (c).begin(), (c).end() typedef long long ll; typedef unsigned long long ull; struct Query { int i; int l, r; }; bool operator<(const Query &a, const Query &b) { return a.r < b.r; } struct FenwickTree { int n; vector<int> tree; public: FenwickTree(int n_) : tree((1 << 21) + 1, 0) { n = n_; } void add(int i, int value) { for (; i < n; i |= i + 1) tree[i] += value; } int sum(int i) { int s = 0; for (; i >= 0; i = (i & i + 1) - 1) s += tree[i]; return s; } }; int lst[500005]; int main() { int N, Q; cin >> N >> Q; vector<int> v; rep(i, N) { int a; cin >> a; v.push_back(a); } rep(i, 500005) lst[i] = -1; vector<Query> w; rep(q, Q) { Query query; query.i = q; cin >> query.l >> query.r; query.l--; query.r--; w.push_back(query); } sort(ALLOF(w)); vector<int> ret(Q, -1); FenwickTree ft(N + 5); int L = -1, R = -1; rep(i, Q) { Query query = w[i]; if (R < query.r) { REP(j, R + 1, query.r + 1) { if (lst[v[j]] != -1) { ft.add(lst[v[j]], -1); } lst[v[j]] = j; ft.add(j, 1); } } ret[query.i] = ft.sum(query.r) - ft.sum(query.l - 1); } rep(i, ret.size()) { cout << ret[i] << endl; } return 0; }
#include <bits/stdc++.h> using namespace std; #define REP(i, a, n) for (int i = (a); i < (int)(n); i++) #define rep(i, n) REP(i, 0, n) #define FOR(it, c) \ for (__typeof((c).begin()) it = (c).begin(); it != (c).end(); ++it) #define ALLOF(c) (c).begin(), (c).end() typedef long long ll; typedef unsigned long long ull; struct Query { int i; int l, r; }; bool operator<(const Query &a, const Query &b) { return a.r < b.r; } struct FenwickTree { int n; vector<int> tree; public: FenwickTree(int n_) : tree((1 << 21) + 1, 0) { n = n_; } void add(int i, int value) { for (; i < n; i |= i + 1) tree[i] += value; } int sum(int i) { int s = 0; for (; i >= 0; i = (i & i + 1) - 1) s += tree[i]; return s; } }; int lst[500005]; int main() { int N, Q; cin >> N >> Q; vector<int> v; rep(i, N) { int a; cin >> a; v.push_back(a); } rep(i, 500005) lst[i] = -1; vector<Query> w; rep(q, Q) { Query query; query.i = q; cin >> query.l >> query.r; query.l--; query.r--; w.push_back(query); } sort(ALLOF(w)); vector<int> ret(Q, -1); FenwickTree ft(N + 5); int L = -1, R = -1; rep(i, Q) { Query query = w[i]; if (R < query.r) { REP(j, R + 1, query.r + 1) { if (lst[v[j]] != -1) { ft.add(lst[v[j]], -1); } lst[v[j]] = j; ft.add(j, 1); } R = query.r; } ret[query.i] = ft.sum(query.r) - ft.sum(query.l - 1); } rep(i, ret.size()) { cout << ret[i] << endl; } return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; int block_size; struct Query { int l, r, idx; bool operator<(Query other) const { return make_pair(l / block_size, r) < make_pair(other.l / block_size, other.r); } }; int main() { ios_base::sync_with_stdio(false); cin.tie(0); int n, q; cin >> n >> q; block_size = sqrt(n); vector<int> v(n); for (int i = 0; i < n; i++) { cin >> v[i]; } vector<Query> vq; for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--; r--; vq.push_back((Query){l, r, i}); } vector<int> answers(q); int ans = 0; unordered_map<int, int> mp; auto add = [&](int idx) { if (mp[v[idx]] == 0) { ans++; } mp[v[idx]]++; }; auto remove = [&](int idx) { if (mp[v[idx]] == 1) { ans--; } mp[v[idx]]--; }; sort(vq.begin(), vq.end()); int cur_l = 0; int cur_r = -1; for (Query qu : vq) { while (cur_l > qu.l) { cur_l--; add(cur_l); } while (cur_r < qu.r) { cur_r++; add(cur_r); } while (cur_l < qu.l) { remove(cur_l); cur_l++; } while (cur_r > qu.r) { remove(cur_r); cur_r--; } answers[qu.idx] = ans; } for (int x : answers) { cout << x << "\n"; } return 0; }
#include <bits/stdc++.h> using namespace std; using ll = long long; int block_size; struct Query { int l, r, idx; bool operator<(Query other) const { return make_pair(l / block_size, r) < make_pair(other.l / block_size, other.r); } }; int main() { ios_base::sync_with_stdio(false); cin.tie(0); int n, q; cin >> n >> q; block_size = sqrt(n); vector<int> v(n); for (int i = 0; i < n; i++) { cin >> v[i]; } vector<Query> vq; for (int i = 0; i < q; i++) { int l, r; cin >> l >> r; l--; r--; vq.push_back((Query){l, r, i}); } vector<int> answers(q); int ans = 0; vector<int> mp(n + 1, 0); auto add = [&](int idx) { if (mp[v[idx]] == 0) { ans++; } mp[v[idx]]++; }; auto remove = [&](int idx) { if (mp[v[idx]] == 1) { ans--; } mp[v[idx]]--; }; sort(vq.begin(), vq.end()); int cur_l = 0; int cur_r = -1; for (Query qu : vq) { while (cur_l > qu.l) { cur_l--; add(cur_l); } while (cur_r < qu.r) { cur_r++; add(cur_r); } while (cur_l < qu.l) { remove(cur_l); cur_l++; } while (cur_r > qu.r) { remove(cur_r); cur_r--; } answers[qu.idx] = ans; } for (int x : answers) { cout << x << "\n"; } return 0; }
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p02599
C++
Runtime Error
#include <algorithm> #include <bitset> #include <cmath> #include <cstdio> #include <cstdlib> #include <cstring> #include <deque> #include <iostream> #include <list> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <vector> using namespace std; int read() { char x; while ((x = getchar()) > '9' || x < '0') ; int u = x - '0'; while ((x = getchar()) <= '9' && x >= '0') u = (u << 3) + (u << 1) + x - '0'; return u; } int buf[105]; inline void write(int i) { int p = 0; if (i == 0) p++; else while (i) { buf[p++] = i % 10; i /= 10; } for (int j = p - 1; j >= 0; j--) putchar('0' + buf[j]); } int a[500005], ans[500005], cnt[500005], res = 0, n, q, bl; struct node { int l, r, id; int block; } e[500005]; inline bool cmp(node a, node b) { if (a.block ^ b.block) { if (a.block & 1) return a.r < b.r; return a.r > b.r; } return a.l < b.l; } inline void del(int x) { --cnt[a[x]]; if (!cnt[a[x]]) --res; } inline void add(int x) { if (!cnt[a[x]]) ++res; ++cnt[a[x]]; } int main() { n = read(); q = read(); bl = n / sqrt(q * 2 / 3); for (int i = 1; i <= n; ++i) a[i] = read(); for (int i = 1; i <= q; ++i) { e[i].l = read(); e[i].r = read(); e[i].id = i; e[i].block = e[i].l / bl; } sort(e + 1, e + 1 + q, cmp); int l = e[1].l, r = e[1].l - 1; for (int i = 1; i <= q; ++i) { int stdl = e[i].l, stdr = e[i].r; while (l < stdl) del(l++); while (l > stdl) add(--l); while (r < stdr) add(++r); while (r > stdr) del(r--); ans[e[i].id] = res; } for (int i = 1; i <= q; ++i) write(ans[i]), printf("\n"); return 0; }
#include <algorithm> #include <bitset> #include <cmath> #include <cstdio> #include <cstdlib> #include <cstring> #include <deque> #include <iostream> #include <list> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <vector> using namespace std; int read() { char x; while ((x = getchar()) > '9' || x < '0') ; int u = x - '0'; while ((x = getchar()) <= '9' && x >= '0') u = (u << 3) + (u << 1) + x - '0'; return u; } int buf[105]; inline void write(int i) { int p = 0; if (i == 0) p++; else while (i) { buf[p++] = i % 10; i /= 10; } for (int j = p - 1; j >= 0; j--) putchar('0' + buf[j]); } int a[500005], ans[500005], cnt[500005], res = 0, n, q, bl; struct node { int l, r, id; int block; } e[500005]; inline bool cmp(const node &a, const node &b) { if (a.block ^ b.block) return a.l < b.l; if (a.block & 1) return a.r < b.r; return a.r > b.r; } inline void del(int x) { --cnt[a[x]]; if (!cnt[a[x]]) --res; } inline void add(int x) { if (!cnt[a[x]]) ++res; ++cnt[a[x]]; } int main() { n = read(); q = read(); bl = n / sqrt(q * 2 / 3); for (int i = 1; i <= n; ++i) a[i] = read(); for (int i = 1; i <= q; ++i) { e[i].l = read(); e[i].r = read(); e[i].id = i; e[i].block = e[i].l / bl; } sort(e + 1, e + 1 + q, cmp); int l = e[1].l, r = e[1].l - 1; for (int i = 1; i <= q; ++i) { int stdl = e[i].l, stdr = e[i].r; while (l < stdl) del(l++); while (l > stdl) add(--l); while (r < stdr) add(++r); while (r > stdr) del(r--); ans[e[i].id] = res; } for (int i = 1; i <= q; ++i) write(ans[i]), printf("\n"); return 0; }
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p02599
C++
Time Limit Exceeded
#include <bits/stdc++.h> typedef long long ll; typedef std::pair<ll, ll> P; #define rep(i, n) for (int i = 0; i < int(n); i++) using namespace std; template <class T> inline bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } struct BIT { typedef ll input_t; vector<input_t> bit_; const long long n_; BIT(long long n) : n_(n) { bit_.resize(n + 1LL, 0); } input_t sum(int i) { input_t s = 0; while (i > 0) { s += bit_[i]; i -= i & (-i); } return s; } void add(int i, input_t x) { while (i <= n_) { bit_[i] += x; i += (i & (-i)); } } }; int main() { ll n, q; cin >> n >> q; vector<ll> cs(n + 1); rep(i, n) cin >> cs[i + 1]; vector<ll> pos(n, -1); vector<P> range(q); rep(i, q) { cin >> range[i].first >> range[i].second; } vector<vector<int>> qs(n + 1); rep(i, q) { qs[range[i].second].push_back(i); } BIT bit(n + 10); vector<ll> ans(q); ll rightSum = 0; for (int i = 1; i <= n; i++) { auto c = cs[i]; if (pos[c] >= 0) { bit.add(pos[c], -1); rightSum--; } pos[c] = i; bit.add(i, 1); rightSum++; ll sum = rightSum; for (auto query : qs[i]) { auto index = query; auto left = range[index].first; if (left > 1) { ans[index] = sum - bit.sum(left - 1); } else { ans[index] = sum; } } } rep(i, q) { cout << ans[i] << endl; } return 0; }
#include <bits/stdc++.h> typedef long long ll; typedef std::pair<ll, ll> P; #define rep(i, n) for (int i = 0; i < int(n); i++) using namespace std; template <class T> inline bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } struct BIT { typedef ll input_t; vector<input_t> bit_; const long long n_; BIT(long long n) : n_(n) { bit_.resize(n + 1LL, 0); } input_t sum(int i) { input_t s = 0; while (i > 0) { s += bit_[i]; i -= i & (-i); } return s; } void add(int i, input_t x) { while (i <= n_) { bit_[i] += x; i += (i & (-i)); } } }; int main() { ll n, q; cin >> n >> q; vector<ll> cs(n + 1); rep(i, n) cin >> cs[i + 1]; vector<ll> pos(n + 1, -1); vector<P> range(q); rep(i, q) { cin >> range[i].first >> range[i].second; } vector<vector<int>> qs(n + 1); rep(i, q) { qs[range[i].second].push_back(i); } BIT bit(n + 10); vector<ll> ans(q); ll rightSum = 0; for (int i = 1; i <= n; i++) { auto c = cs[i]; if (pos[c] >= 0) { bit.add(pos[c], -1); rightSum--; } pos[c] = i; bit.add(i, 1); rightSum++; ll sum = rightSum; for (auto query : qs[i]) { auto index = query; auto left = range[index].first; if (left > 1) { ans[index] = sum - bit.sum(left - 1); } else { ans[index] = sum; } } } rep(i, q) { cout << ans[i] << endl; } return 0; }
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p02599
C++
Runtime Error
// Author: Vinay Khilwani // Language: C++ // @vok8: Codeforces, AtCoder, LeetCode, HackerEarth, TopCoder, Google, FB, // CSES, Spoj, GitHub // @vok_8: CodeChef, GFG // @vok8_khilwani: HackerRank // Never Stop Trying. // Trying to be Better than Myself. // while(true) // { // if(AC) // { // break; // } // else if(Contest Over) // { // Try. // Check out Editorial. // Understand. // Find out your Mistake. // Learn the topic (if new). // Solve Problems on that topic (if new). // Upsolve that problem. // break; // } // else // { // Try. // Use Pen-Paper. // Find errors, edge cases, etc. // continue; // } // } // Optimizations #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #pragma GCC optimize("Os") // Libraries #include <bits/stdc++.h> using namespace std; // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; // Debugging #define dbg(a) cerr << a << "\n"; #define debug_a(a) \ for (auto x : a) { \ cerr << x << " "; \ } \ cerr << "\n"; #define debug_b(a) \ for (auto x : a) { \ cerr << "[" << x.first << ", " << x.second << "]" \ << "\n"; \ } \ cerr << "\n"; #define debug_c(a) \ for (auto x : a) { \ debug_a(x) \ } \ cerr << "\n"; #define debug_d(a) \ for (auto x : a) { \ debug_b(x) \ } \ cerr << "\n"; #define debug_e(a) \ cerr << "[" << a.first << ", " << a.second << "]" \ << "\n"; // Defines #define fast \ ios_base::sync_with_stdio(false); \ cout.tie(NULL); \ cin.tie(NULL); #define loop(i, a, n) for (int i = a; i < n; i++) #define rloop(i, a, n) for (int i = a; i >= n; i--) #define fr(i, a, n, b) for (int i = a; i < n; i += b) #define rfr(i, a, n, b) for (int i = a; i >= n; i -= b) #define IN cin >> #define OUT cout << #define nl "\n" #define sz(a) int(a.size()) #define all(a) (a).begin(), (a).end() #define each(a, b) for (auto &a : b) #define pb push_back #define set_bits(a) __builtin_popcountll(a) #define ar array #define write(a) \ for (auto x : a) { \ OUT x << " "; \ } \ OUT nl; #define read(a) \ for (auto &x : a) { \ IN x; \ } // #define oset // tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> using ll = long long int; using ld = long double; using pll = pair<ll, ll>; using pii = pair<int, int>; using vll = vector<ll>; using vi = vector<int>; const ll mod = (ll)(1e9) + 7LL; const ll M = 988244353LL; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, 1, 0, -1}; const ld pi = acos(-1); // General Functions ll gcd(ll a, ll b) { return (b ? gcd(b, a % b) : a); } ll P(ll B, ll power, ll modulo) // Fast Power { ll ans = 1LL; while (power > 0LL) { if (power % 2LL == 1LL) { ans = (ans * B) % modulo; } B = (B * B) % modulo; power /= 2LL; } return ans; } bool isPrime(ll n) { if (n <= 1LL) { return false; } if (n <= 3LL) { return true; } if (n % 2 == 0LL || n % 3 == 0LL) { return false; } for (ll i = 5LL; (i * i) <= n; i += 6LL) { if (n % i == 0LL || n % (i + 2LL) == 0LL) { return false; } } return true; } void vok() { fast #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); freopen("error.txt", "w", stderr); #endif } // Global Variables const int mxN = int(1e5) + 100; set<int> *seg; // Solver Function(s) void update(int idx, int val, int bit[], int n) { for (; idx <= n; idx += idx & -idx) { bit[idx] += val; } } int query(int idx, int bit[], int n) { int sum = 0; for (; idx > 0; idx -= idx & -idx) { sum += bit[idx]; } return sum; } void run(int arr[], int n, vector<ar<int, 3>> v, int q) { int bit[n + 1]; memset(bit, 0, sizeof(bit)); int last_visit[mxN]; memset(last_visit, -1, sizeof(last_visit)); int ans[q]; int query_counter = 0; for (int i = 0; i < n; i++) { if (last_visit[arr[i]] != -1) { update(last_visit[arr[i]] + 1, -1, bit, n); } last_visit[arr[i]] = i; update(i + 1, 1, bit, n); while (query_counter < q && v[query_counter][0] == i) { ans[v[query_counter][2]] = query(v[query_counter][0] + 1, bit, n) - query(v[query_counter][1], bit, n); query_counter++; } } loop(i, 0, q) { OUT ans[i] << nl; } } void solve() { int n, q; IN n >> q; int v[n]; loop(i, 0, n) { IN v[i]; } vector<ar<int, 3>> vv(q); loop(i, 0, q) { IN vv[i][1] >> vv[i][0]; vv[i][2] = i; vv[i][0]--, vv[i][1]--; } sort(all(vv)); run(v, n, vv, q); } // Main Function int main() { vok(); int t = 1; // IN t; while (t--) { solve(); } return 0; }
// Author: Vinay Khilwani // Language: C++ // @vok8: Codeforces, AtCoder, LeetCode, HackerEarth, TopCoder, Google, FB, // CSES, Spoj, GitHub // @vok_8: CodeChef, GFG // @vok8_khilwani: HackerRank // Never Stop Trying. // Trying to be Better than Myself. // while(true) // { // if(AC) // { // break; // } // else if(Contest Over) // { // Try. // Check out Editorial. // Understand. // Find out your Mistake. // Learn the topic (if new). // Solve Problems on that topic (if new). // Upsolve that problem. // break; // } // else // { // Try. // Use Pen-Paper. // Find errors, edge cases, etc. // continue; // } // } // Optimizations #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #pragma GCC optimize("Os") // Libraries #include <bits/stdc++.h> using namespace std; // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; // Debugging #define dbg(a) cerr << a << "\n"; #define debug_a(a) \ for (auto x : a) { \ cerr << x << " "; \ } \ cerr << "\n"; #define debug_b(a) \ for (auto x : a) { \ cerr << "[" << x.first << ", " << x.second << "]" \ << "\n"; \ } \ cerr << "\n"; #define debug_c(a) \ for (auto x : a) { \ debug_a(x) \ } \ cerr << "\n"; #define debug_d(a) \ for (auto x : a) { \ debug_b(x) \ } \ cerr << "\n"; #define debug_e(a) \ cerr << "[" << a.first << ", " << a.second << "]" \ << "\n"; // Defines #define fast \ ios_base::sync_with_stdio(false); \ cout.tie(NULL); \ cin.tie(NULL); #define loop(i, a, n) for (int i = a; i < n; i++) #define rloop(i, a, n) for (int i = a; i >= n; i--) #define fr(i, a, n, b) for (int i = a; i < n; i += b) #define rfr(i, a, n, b) for (int i = a; i >= n; i -= b) #define IN cin >> #define OUT cout << #define nl "\n" #define sz(a) int(a.size()) #define all(a) (a).begin(), (a).end() #define each(a, b) for (auto &a : b) #define pb push_back #define set_bits(a) __builtin_popcountll(a) #define ar array #define write(a) \ for (auto x : a) { \ OUT x << " "; \ } \ OUT nl; #define read(a) \ for (auto &x : a) { \ IN x; \ } // #define oset // tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> using ll = long long int; using ld = long double; using pll = pair<ll, ll>; using pii = pair<int, int>; using vll = vector<ll>; using vi = vector<int>; const ll mod = (ll)(1e9) + 7LL; const ll M = 988244353LL; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, 1, 0, -1}; const ld pi = acos(-1); // General Functions ll gcd(ll a, ll b) { return (b ? gcd(b, a % b) : a); } ll P(ll B, ll power, ll modulo) // Fast Power { ll ans = 1LL; while (power > 0LL) { if (power % 2LL == 1LL) { ans = (ans * B) % modulo; } B = (B * B) % modulo; power /= 2LL; } return ans; } bool isPrime(ll n) { if (n <= 1LL) { return false; } if (n <= 3LL) { return true; } if (n % 2 == 0LL || n % 3 == 0LL) { return false; } for (ll i = 5LL; (i * i) <= n; i += 6LL) { if (n % i == 0LL || n % (i + 2LL) == 0LL) { return false; } } return true; } void vok() { fast #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); freopen("error.txt", "w", stderr); #endif } // Global Variables const int mxN = int(5e5) + 100; set<int> *seg; // Solver Function(s) void update(int idx, int val, int bit[], int n) { for (; idx <= n; idx += idx & -idx) { bit[idx] += val; } } int query(int idx, int bit[], int n) { int sum = 0; for (; idx > 0; idx -= idx & -idx) { sum += bit[idx]; } return sum; } void run(int arr[], int n, vector<ar<int, 3>> v, int q) { int bit[n + 1]; memset(bit, 0, sizeof(bit)); int last_visit[mxN]; memset(last_visit, -1, sizeof(last_visit)); int ans[q]; int query_counter = 0; for (int i = 0; i < n; i++) { if (last_visit[arr[i]] != -1) { update(last_visit[arr[i]] + 1, -1, bit, n); } last_visit[arr[i]] = i; update(i + 1, 1, bit, n); while (query_counter < q && v[query_counter][0] == i) { ans[v[query_counter][2]] = query(v[query_counter][0] + 1, bit, n) - query(v[query_counter][1], bit, n); query_counter++; } } loop(i, 0, q) { OUT ans[i] << nl; } } void solve() { int n, q; IN n >> q; int v[n]; loop(i, 0, n) { IN v[i]; } vector<ar<int, 3>> vv(q); loop(i, 0, q) { IN vv[i][1] >> vv[i][0]; vv[i][2] = i; vv[i][0]--, vv[i][1]--; } sort(all(vv)); run(v, n, vv, q); } // Main Function int main() { vok(); int t = 1; // IN t; while (t--) { solve(); } return 0; }
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p02599
C++
Runtime Error
#include <algorithm> #include <cstring> #include <iostream> #include <string> #include <unordered_map> #include <vector> using namespace std; const int N = 200003; struct query { int l, r, id; query() {} query(int ll, int rr, int d) { l = ll, r = rr, id = d; } bool operator<(const query &x) { return r < x.r; } }; int n, k, Q, c[N], ans[N], s[N]; query q[N]; void add(int i, int a) { while (i <= n) { s[i] += a; i += i & -i; } } int getsum(int i) { int ret = 0; while (i) { ret += s[i]; i -= i & -i; } return ret; } int main() { cin >> n >> Q; for (int i = 1; i <= n; ++i) scanf("%d", &c[i]); for (int i = 0, l, r; i < Q; ++i) { scanf("%d %d", &l, &r); q[i] = query(l, r, i); } unordered_map<int, int> mp; sort(q, q + Q); for (int i = 0, pre = 1; i < Q; ++i) { for (int j = pre; j <= q[i].r; ++j) { add(j, 1); auto ptr = mp.find(c[j]); if (ptr != mp.end()) add(mp[c[j]], -1); mp[c[j]] = j; } ans[q[i].id] = getsum(q[i].r) - getsum(q[i].l - 1); pre = q[i].r + 1; } for (int i = 0; i < Q; ++i) printf("%d\n", ans[i]); return 0; }
#include <algorithm> #include <cstring> #include <iostream> #include <string> #include <unordered_map> #include <vector> using namespace std; const int N = 500003; struct query { int l, r, id; query() {} query(int ll, int rr, int d) { l = ll, r = rr, id = d; } bool operator<(const query &x) { return r < x.r; } }; int n, k, Q, c[N], ans[N], s[N]; query q[N]; void add(int i, int a) { while (i <= n) { s[i] += a; i += i & -i; } } int getsum(int i) { int ret = 0; while (i) { ret += s[i]; i -= i & -i; } return ret; } int main() { cin >> n >> Q; for (int i = 1; i <= n; ++i) scanf("%d", &c[i]); for (int i = 0, l, r; i < Q; ++i) { scanf("%d %d", &l, &r); q[i] = query(l, r, i); } unordered_map<int, int> mp; sort(q, q + Q); for (int i = 0, pre = 1; i < Q; ++i) { for (int j = pre; j <= q[i].r; ++j) { add(j, 1); auto ptr = mp.find(c[j]); if (ptr != mp.end()) add(mp[c[j]], -1); mp[c[j]] = j; } ans[q[i].id] = getsum(q[i].r) - getsum(q[i].l - 1); pre = q[i].r + 1; } for (int i = 0; i < Q; ++i) printf("%d\n", ans[i]); return 0; }
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p02599
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; using ll = long long; using vin = vector<int>; using vll = vector<long long>; using vvin = vector<vector<int>>; using vvll = vector<vector<long long>>; using vstr = vector<string>; using vvstr = vector<vector<string>>; using vch = vector<char>; using vvch = vector<vector<char>>; using vbo = vector<bool>; using vvbo = vector<vector<bool>>; using vpii = vector<pair<int, int>>; using pqsin = priority_queue<int, vector<int>, greater<int>>; #define mp make_pair #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep2(i, s, n) for (int i = (s); i < (int)(n); i++) #define all(v) v.begin(), v.end() #define decp(n) cout << fixed << setprecision((int)n) const int inf = 1e9 + 7; const ll INF = 1e18; const int DAT_SIZE = 1 << 18; const int MAX_N = 500050; int N; vll dat1(DAT_SIZE), dat2(DAT_SIZE); vll v(MAX_N); //[a,b)にxを加算 // 0-indexであることに注意 void add(int a, int b, ll x, int k = 0, int l = 0, int r = N) { if (a <= l && r <= b) dat1[k] += x; else if (l < b && a < r) { dat2[k] += (ll)(min(b, r) - max(a, l)) * x; add(a, b, x, 2 * k + 1, l, (l + r) / 2); add(a, b, x, 2 * k + 2, (l + r) / 2, r); } } // 初期化 void init(int n) { N = 1; while (N < n) N *= 2; // rep(i,n)add(i,i+1,v[i],0,0,n); } //[a,b)の和 // 0-indexであることに注意 ll getsum(int a, int b, int k = 0, int l = 0, int r = N) { if (b <= l || r <= a) return 0; else if (a <= l && r <= b) return dat1[k] * (ll)(r - l) + dat2[k]; else { ll res = (ll)(min(b, r) - max(a, l)) * dat1[k]; res += getsum(a, b, 2 * k + 1, l, (l + r) / 2); res += getsum(a, b, 2 * k + 2, (l + r) / 2, r); return res; } } int main() { int n, q; cin >> n >> q; vin c(n); rep(i, n) cin >> c[i]; vector<tuple<int, int, int>> query(q); int l, r; rep(i, q) { cin >> l >> r; l--; r--; query[i] = make_tuple(r, l, i); } sort(all(query)); init(n); int x, y, z; int tmp = 0; vin prev(n + 1, -1); vin ans(q); rep(i, q) { y = get<0>(query[i]); x = get<1>(query[i]); z = get<2>(query[i]); rep2(j, tmp, y + 1) { add(prev[c[j]] + 1, j + 1, 1); prev[c[j]] = j; } tmp = y; ans[z] = getsum(x, x + 1); } rep(i, q) cout << ans[i] << endl; }
#include <bits/stdc++.h> using namespace std; using ll = long long; using vin = vector<int>; using vll = vector<long long>; using vvin = vector<vector<int>>; using vvll = vector<vector<long long>>; using vstr = vector<string>; using vvstr = vector<vector<string>>; using vch = vector<char>; using vvch = vector<vector<char>>; using vbo = vector<bool>; using vvbo = vector<vector<bool>>; using vpii = vector<pair<int, int>>; using pqsin = priority_queue<int, vector<int>, greater<int>>; #define mp make_pair #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep2(i, s, n) for (int i = (s); i < (int)(n); i++) #define all(v) v.begin(), v.end() #define decp(n) cout << fixed << setprecision((int)n) const int inf = 1e9 + 7; const ll INF = 1e18; const int DAT_SIZE = 1 << 22; const int MAX_N = 500050; int N; vll dat1(DAT_SIZE), dat2(DAT_SIZE); vll v(MAX_N); //[a,b)にxを加算 // 0-indexであることに注意 void add(int a, int b, ll x, int k = 0, int l = 0, int r = N) { if (a <= l && r <= b) dat1[k] += x; else if (l < b && a < r) { dat2[k] += (ll)(min(b, r) - max(a, l)) * x; add(a, b, x, 2 * k + 1, l, (l + r) / 2); add(a, b, x, 2 * k + 2, (l + r) / 2, r); } } // 初期化 void init(int n) { N = 1; while (N < n) N *= 2; // rep(i,n)add(i,i+1,v[i],0,0,n); } //[a,b)の和 // 0-indexであることに注意 ll getsum(int a, int b, int k = 0, int l = 0, int r = N) { if (b <= l || r <= a) return 0; else if (a <= l && r <= b) return dat1[k] * (ll)(r - l) + dat2[k]; else { ll res = (ll)(min(b, r) - max(a, l)) * dat1[k]; res += getsum(a, b, 2 * k + 1, l, (l + r) / 2); res += getsum(a, b, 2 * k + 2, (l + r) / 2, r); return res; } } int main() { int n, q; cin >> n >> q; vin c(n); rep(i, n) cin >> c[i]; vector<tuple<int, int, int>> query(q); int l, r; rep(i, q) { cin >> l >> r; l--; r--; query[i] = make_tuple(r, l, i); } sort(all(query)); init(n); int x, y, z; int tmp = 0; vin prev(n + 1, -1); vin ans(q); rep(i, q) { y = get<0>(query[i]); x = get<1>(query[i]); z = get<2>(query[i]); rep2(j, tmp, y + 1) { add(prev[c[j]] + 1, j + 1, 1); prev[c[j]] = j; } tmp = y; ans[z] = getsum(x, x + 1); } rep(i, q) cout << ans[i] << endl; }
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p02599
C++
Time Limit Exceeded
#include <algorithm> #include <cmath> #include <cstdint> #include <cstdio> #include <iomanip> #include <iostream> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <vector> using namespace std; #define rep(i, n) for (int(i) = 0; (i) < (n); (i)++) #define FOR(i, m, n) for (int(i) = (m); (i) < (n); (i)++) #define All(v) (v).begin(), (v).end() #define pb push_back #define MP(a, b) make_pair((a), (b)) using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; // 参考:https://qiita.com/drken/items/1b7e6e459c24a83bb7fd // 1-indexed BIT // add:log(N),sum:log(N),get_k-th:log(N) // https://codeforces.com/contest/1354/problem/D struct BIT { vector<ll> dat; BIT(int n) { dat.resize(n + 1); for (int i = 0; i < (int)dat.size(); i++) dat[i] = 0; } // a is 1-indexed void add(int a, ll x) { for (int i = a; i < (int)dat.size(); i += i & -i) dat[i] = dat[i] + x; } // [1,a], a is 1-indexed ll sum(int a) { ll res = 0; for (int i = a; i > 0; i -= i & -i) { res = res + dat[i]; } return res; } // [a,b), a and b are 1-indexed ll sum(int a, int b) { return sum(b - 1) - sum(a - 1); } // k-th number (k is 1-indexed) // lower_bound int get(ll k) { if (k <= 0) return 0; int res = 0; int N = 1; while (N < (int)dat.size()) N *= 2; for (int i = N / 2; i > 0; i /= 2) { if (res + i < (int)dat.size() && dat[res + i] < k) { k = k - dat[res + i]; res = res + i; } } return res + 1; } }; int main() { int N, Q; cin >> N >> Q; vector<int> C(N); rep(i, N) cin >> C[i]; vector<int> last(N + 1, -1); vector<pair<pii, int>> query(Q); rep(i, Q) { int l, r; cin >> l >> r; query[i] = MP(MP(r, l), i); } vector<int> res(Q); sort(All(query)); int lastr = query[0].first.first; BIT bit(N + 1); rep(i, lastr) { last[C[i]] = i + 1; } rep(i, N + 1) { if (last[i] != -1) bit.add(last[i], 1); } rep(i, Q) { for (int j = lastr + 1; j <= query[i].first.first; j++) { int tmp = last[C[j - 1]]; last[C[j - 1]] = j; if (tmp > 0) bit.add(tmp, -1); bit.add(j, 1); } res[query[i].second] = bit.sum(query[i].first.second, query[i].first.first + 1); } rep(i, Q) { cout << res[i] << endl; } return 0; }
#include <algorithm> #include <cmath> #include <cstdint> #include <cstdio> #include <iomanip> #include <iostream> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <vector> using namespace std; #define rep(i, n) for (int(i) = 0; (i) < (n); (i)++) #define FOR(i, m, n) for (int(i) = (m); (i) < (n); (i)++) #define All(v) (v).begin(), (v).end() #define pb push_back #define MP(a, b) make_pair((a), (b)) using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; // 参考:https://qiita.com/drken/items/1b7e6e459c24a83bb7fd // 1-indexed BIT // add:log(N),sum:log(N),get_k-th:log(N) // https://codeforces.com/contest/1354/problem/D struct BIT { vector<ll> dat; BIT(int n) { dat.resize(n + 1); for (int i = 0; i < (int)dat.size(); i++) dat[i] = 0; } // a is 1-indexed void add(int a, ll x) { for (int i = a; i < (int)dat.size(); i += i & -i) dat[i] = dat[i] + x; } // [1,a], a is 1-indexed ll sum(int a) { ll res = 0; for (int i = a; i > 0; i -= i & -i) { res = res + dat[i]; } return res; } // [a,b), a and b are 1-indexed ll sum(int a, int b) { return sum(b - 1) - sum(a - 1); } // k-th number (k is 1-indexed) // lower_bound int get(ll k) { if (k <= 0) return 0; int res = 0; int N = 1; while (N < (int)dat.size()) N *= 2; for (int i = N / 2; i > 0; i /= 2) { if (res + i < (int)dat.size() && dat[res + i] < k) { k = k - dat[res + i]; res = res + i; } } return res + 1; } }; int main() { int N, Q; cin >> N >> Q; vector<int> C(N); rep(i, N) cin >> C[i]; vector<int> last(N + 1, -1); vector<pair<pii, int>> query(Q); rep(i, Q) { int l, r; cin >> l >> r; query[i] = MP(MP(r, l), i); } vector<int> res(Q); sort(All(query)); int lastr = query[0].first.first; BIT bit(N + 1); rep(i, lastr) { last[C[i]] = i + 1; } rep(i, N + 1) { if (last[i] != -1) bit.add(last[i], 1); } rep(i, Q) { for (int j = lastr + 1; j <= query[i].first.first; j++) { int tmp = last[C[j - 1]]; last[C[j - 1]] = j; if (tmp > 0) bit.add(tmp, -1); bit.add(j, 1); lastr = query[i].first.first; } res[query[i].second] = bit.sum(query[i].first.second, query[i].first.first + 1); } rep(i, Q) { cout << res[i] << endl; } return 0; }
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p02599
C++
Runtime Error
/**Which of the favors of your Lord will you deny ?**/ #include <bits/stdc++.h> using namespace std; #define LL long long #define PII pair<int, int> #define PLL pair<LL, LL> #define MP make_pair #define F first #define S second #define INF INT_MAX #define ALL(x) (x).begin(), (x).end() #define DBG(x) cerr << __LINE__ << " says: " << #x << " = " << (x) << endl #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; template <class TIn> using indexed_set = tree<TIn, null_type, less<TIn>, rb_tree_tag, tree_order_statistics_node_update>; /** PBDS ------------------------------------------------- 1) insert(value) 2) erase(value) 3) order_of_key(value) // 0 based indexing 4) *find_by_order(position) // 0 based indexing **/ inline void optimizeIO() { ios_base::sync_with_stdio(false); cin.tie(NULL); } const int nmax = 3e4 + 7; const int nmax2 = 1e6 + 7; const LL LINF = 1e17; string to_str(LL x) { stringstream ss; ss << x; return ss.str(); } int ara[nmax]; /** Mo's Algorithm **/ /*** 1 based indexing ***/ int block_size; struct Query { int l, r, idx; bool operator<(Query other) const { return make_pair(l / block_size, r) < make_pair(other.l / block_size, other.r); } }; int cnt[nmax2]; int max_cnt[nmax2]; /** this part is needed because when a value is removed , we need to check if this value was the only one with maximum freq **/ int st = 0; /** set size **/ inline void init(int n) { st = 0; fill(cnt, cnt + nmax2, 0); fill(max_cnt, max_cnt + nmax2, 0); block_size = sqrt(n); } void remov(int idx); // TODO: remove value at idx from data structure void add(int idx); // TODO: add value at idx from data structure int get_answer(); // TODO: extract the current answer of the data structure inline void add(int idx) { int val = ara[idx]; if (cnt[val] == 0) st++; cnt[val]++; } inline void remov(int idx) { int val = ara[idx]; cnt[val]--; if (cnt[val] == 0) st--; } inline int get_answer() { return st; } vector<int> mo_s_algorithm(vector<Query> queries) { vector<int> answers(queries.size() + 1); sort(queries.begin(), queries.end()); // TODO: initialize data structure int cur_l = 0; int cur_r = -1; // invariant: data structure will always reflect the range [cur_l, cur_r] for (Query q : queries) { while (cur_l > q.l) { cur_l--; add(cur_l); } while (cur_r < q.r) { cur_r++; add(cur_r); } while (cur_l < q.l) { remov(cur_l); cur_l++; } while (cur_r > q.r) { remov(cur_r); cur_r--; } answers[q.idx] = get_answer(); } return answers; } int main() { int n, q; scanf("%d %d", &n, &q); for (int i = 1; i <= n; i++) { scanf("%d", &ara[i]); } init(n); /** IMP **/ vector<Query> qv; for (int i = 1; i <= q; i++) { int l, r; scanf("%d %d", &l, &r); qv.push_back({l, r, i}); } auto ans = mo_s_algorithm(qv); for (int i = 1; i <= q; i++) { printf("%d\n", ans[i]); } return 0; } /** 10 10 2 5 6 5 2 1 7 9 7 2 5 5 2 4 6 7 2 2 7 8 7 9 1 8 6 9 8 10 6 8 1 2 2 1 2 2 6 3 3 3 **/
/**Which of the favors of your Lord will you deny ?**/ #include <bits/stdc++.h> using namespace std; #define LL long long #define PII pair<int, int> #define PLL pair<LL, LL> #define MP make_pair #define F first #define S second #define INF INT_MAX #define ALL(x) (x).begin(), (x).end() #define DBG(x) cerr << __LINE__ << " says: " << #x << " = " << (x) << endl #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; template <class TIn> using indexed_set = tree<TIn, null_type, less<TIn>, rb_tree_tag, tree_order_statistics_node_update>; /** PBDS ------------------------------------------------- 1) insert(value) 2) erase(value) 3) order_of_key(value) // 0 based indexing 4) *find_by_order(position) // 0 based indexing **/ inline void optimizeIO() { ios_base::sync_with_stdio(false); cin.tie(NULL); } const int nmax = 5e5 + 7; const int nmax2 = nmax; const LL LINF = 1e17; string to_str(LL x) { stringstream ss; ss << x; return ss.str(); } int ara[nmax]; /** Mo's Algorithm **/ /*** 1 based indexing ***/ int block_size; struct Query { int l, r, idx; bool operator<(Query other) const { return make_pair(l / block_size, r) < make_pair(other.l / block_size, other.r); } }; int cnt[nmax2]; int max_cnt[nmax2]; /** this part is needed because when a value is removed , we need to check if this value was the only one with maximum freq **/ int st = 0; /** set size **/ inline void init(int n) { st = 0; fill(cnt, cnt + nmax2, 0); fill(max_cnt, max_cnt + nmax2, 0); block_size = sqrt(n); } void remov(int idx); // TODO: remove value at idx from data structure void add(int idx); // TODO: add value at idx from data structure int get_answer(); // TODO: extract the current answer of the data structure inline void add(int idx) { int val = ara[idx]; if (cnt[val] == 0) st++; cnt[val]++; } inline void remov(int idx) { int val = ara[idx]; cnt[val]--; if (cnt[val] == 0) st--; } inline int get_answer() { return st; } vector<int> mo_s_algorithm(vector<Query> queries) { vector<int> answers(queries.size() + 1); sort(queries.begin(), queries.end()); // TODO: initialize data structure int cur_l = 0; int cur_r = -1; // invariant: data structure will always reflect the range [cur_l, cur_r] for (Query q : queries) { while (cur_l > q.l) { cur_l--; add(cur_l); } while (cur_r < q.r) { cur_r++; add(cur_r); } while (cur_l < q.l) { remov(cur_l); cur_l++; } while (cur_r > q.r) { remov(cur_r); cur_r--; } answers[q.idx] = get_answer(); } return answers; } int main() { int n, q; scanf("%d %d", &n, &q); for (int i = 1; i <= n; i++) { scanf("%d", &ara[i]); } init(n); /** IMP **/ vector<Query> qv; for (int i = 1; i <= q; i++) { int l, r; scanf("%d %d", &l, &r); qv.push_back({l, r, i}); } auto ans = mo_s_algorithm(qv); for (int i = 1; i <= q; i++) { printf("%d\n", ans[i]); } return 0; } /** 10 10 2 5 6 5 2 1 7 9 7 2 5 5 2 4 6 7 2 2 7 8 7 9 1 8 6 9 8 10 6 8 1 2 2 1 2 2 6 3 3 3 **/
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