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p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define int long long #define REP(i, m, n) for (int i = (m); i < (n); i++) #define rep(i, n) REP(i, 0, n) #define pb push_back #define all(a) a.begin(), a.end() #define rall(c) (c).rbegin(), (c).rend() #define mp make_pair #define endl '\n' #define vec vector<ll> #define mat vector<vector<ll>> #define fi first #define se second typedef long long ll; typedef pair<ll, ll> pll; typedef long double ld; const ll inf = 1e9 + 7; const ll mod = 998244353; signed main() { ll k; cin >> k; ll ans = -1; vector<ll> a(k + 1); a[0] = 7 % k; rep(i, k + 1) { if (a[i] % k == 0) { ans = i + 1; break; } if (i < k + 1) a[i + 1] = (a[i] * 10 + 7) % k; } cout << ans << endl; }
#include <bits/stdc++.h> using namespace std; #define int long long #define REP(i, m, n) for (int i = (m); i < (n); i++) #define rep(i, n) REP(i, 0, n) #define pb push_back #define all(a) a.begin(), a.end() #define rall(c) (c).rbegin(), (c).rend() #define mp make_pair #define endl '\n' #define vec vector<ll> #define mat vector<vector<ll>> #define fi first #define se second typedef long long ll; typedef pair<ll, ll> pll; typedef long double ld; const ll inf = 1e9 + 7; const ll mod = 998244353; signed main() { ll k; cin >> k; ll ans = -1; vector<ll> a(k + 1); a[0] = 7 % k; rep(i, k + 1) { if (a[i] % k == 0) { ans = i + 1; break; } if (i < k) a[i + 1] = (a[i] * 10 + 7) % k; } cout << ans << endl; }
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0
p02596
C++
Runtime Error
#include <algorithm> #include <iostream> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <sstream> #include <stack> #include <utility> #include <vector> typedef long long ll; 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 dr[4] = {-1, 0, 1, 0}; const int dc[4] = {0, 1, 0, -1}; const int INF = 1e9; #define FOR(i, a, n) for (int i = (int)(a); i < (int)(n); ++i) #define REP(i, n) FOR(i, 0, n) #define SORT(a) sort(a.begin(), a.end()) #define REVERSE(a) reverse(a.begin(), a.end()) int guki(int a) { if (a % 2 == 0) return 0; else return 1; } int gcd(int a, int b) { if (a % b == 0) { return b; } else { return (gcd(b, a % b)); } } int lcm(int a, int b) { int x = gcd(a, b); return (a * b / x); } using namespace std; // now struct UnionFind { vector<int> d; UnionFind(int n = 0) : d(n, -1) {} int Find(int x) { // 根の番号を探す if (d[x] < 0) return x; return d[x] = Find(d[x]); } bool unite(int x, int y) { x = Find(x); y = Find(y); if (x == y) return false; if (d[x] < d[y]) { swap(x, y); } d[x] += d[y]; d[y] = x; return true; } bool same(int x, int y) { return Find(x) == Find(y); } int size(int x) { return (-d[Find(x)]); } }; ll nCr(ll n, ll r) { ll ans = 1; for (ll i = n; i > n - r; i--) { ans *= i; } for (ll i = 1; i <= r; i++) { ans /= i; } return ans; } int nPr(int n, int r) { int ans = 1; for (int i = n; i > n - r; i--) { ans *= i; } return ans; } ll modd = 1e9 + 7; ll wa(ll n, ll mi, ll ma) { ll ans = n * (mi + ma) / 2; return ans; } ll kw(ll k, ll n) { ll ans = 0; ll mi, ma; mi = wa(k, 0, k - 1); ma = wa(k, n - k + 1, n); return (ma - mi + 1) % modd; } int main() { int a[100000001]; int k; cin >> k; a[1] = 7 % k; for (int i = 2; i <= k; i++) { a[i] = (a[i - 1] * 10 + 7) % k; } for (int i = 1; i <= k; i++) { if (a[i] == 0) { cout << i << endl; return 0; } } cout << -1 << endl; }
#include <algorithm> #include <iostream> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <sstream> #include <stack> #include <utility> #include <vector> typedef long long ll; 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 dr[4] = {-1, 0, 1, 0}; const int dc[4] = {0, 1, 0, -1}; const int INF = 1e9; #define FOR(i, a, n) for (int i = (int)(a); i < (int)(n); ++i) #define REP(i, n) FOR(i, 0, n) #define SORT(a) sort(a.begin(), a.end()) #define REVERSE(a) reverse(a.begin(), a.end()) int guki(int a) { if (a % 2 == 0) return 0; else return 1; } int gcd(int a, int b) { if (a % b == 0) { return b; } else { return (gcd(b, a % b)); } } int lcm(int a, int b) { int x = gcd(a, b); return (a * b / x); } using namespace std; // now struct UnionFind { vector<int> d; UnionFind(int n = 0) : d(n, -1) {} int Find(int x) { // 根の番号を探す if (d[x] < 0) return x; return d[x] = Find(d[x]); } bool unite(int x, int y) { x = Find(x); y = Find(y); if (x == y) return false; if (d[x] < d[y]) { swap(x, y); } d[x] += d[y]; d[y] = x; return true; } bool same(int x, int y) { return Find(x) == Find(y); } int size(int x) { return (-d[Find(x)]); } }; ll nCr(ll n, ll r) { ll ans = 1; for (ll i = n; i > n - r; i--) { ans *= i; } for (ll i = 1; i <= r; i++) { ans /= i; } return ans; } int nPr(int n, int r) { int ans = 1; for (int i = n; i > n - r; i--) { ans *= i; } return ans; } ll modd = 1e9 + 7; ll wa(ll n, ll mi, ll ma) { ll ans = n * (mi + ma) / 2; return ans; } ll kw(ll k, ll n) { ll ans = 0; ll mi, ma; mi = wa(k, 0, k - 1); ma = wa(k, n - k + 1, n); return (ma - mi + 1) % modd; } int main() { int a[1000001]; int k; cin >> k; a[1] = 7 % k; for (int i = 2; i <= k; i++) { a[i] = (a[i - 1] * 10 + 7) % k; } for (int i = 1; i <= k; i++) { if (a[i] == 0) { cout << i << endl; return 0; } } cout << -1 << endl; }
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p02596
C++
Time Limit Exceeded
#include <algorithm> #include <bits/stdc++.h> #include <iomanip> #include <iostream> #include <math.h> #include <set> #include <sstream> #include <stdio.h> #include <string> #include <vector> using namespace std; int main(void) { long long int k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; } else { long long int now = 7; long long int count = 1; while (true) { if (now % k == 0) { cout << count << endl; break; } else { now *= 10; now += 7; now %= k; count++; } } } }
#include <algorithm> #include <bits/stdc++.h> #include <iomanip> #include <iostream> #include <math.h> #include <set> #include <sstream> #include <stdio.h> #include <string> #include <vector> using namespace std; int main(void) { long long int k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; } else { long long int now = 7; long long int count = 1; while (true) { if (now % k == 0) { cout << count << endl; break; } else { now *= 10; now += 7; now %= k; count++; } } } }
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TLE
p02596
C++
Time Limit Exceeded
#include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <stack> #include <string.h> #include <unordered_map> #include <vector> using namespace std; #define COUT(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << endl template <class T> void printvec(const vector<T> &v) { for (auto x : v) { cout << x << " "; } cout << endl; } template <class T> void printtree(const vector<vector<T>> &tree) { for (long long i = 0; i < tree.size(); ++i) { cout << i + 1 << ": "; printvec(tree[i]); } } template <class T, class U> void printmap(const map<T, U> &mp) { for (auto x : mp) { cout << x.first << "=>" << x.second << endl; } } 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; } #define rep(i, n) for (ll i = 0; i < n; ++i) #define all(s) s.begin(), s.end() #define sz(x) (ll)(x).size() #define fr first #define sc second #define mp make_pair #define pb push_back #define eb emplace_back typedef long long ll; typedef unsigned long long ull; typedef pair<ll, ll> P; typedef tuple<ll, ll, ll> triple; typedef double D; typedef vector<ll> vl; typedef vector<P> vp; const ll INF = 1e9; ll MOD; // Mod int // cf. https://www.youtube.com/watch?v=1Z6ofKN03_Y struct mint { ll x; mint(ll x = 0) : x((x + MOD) % MOD) {} mint &operator+=(const mint a) { if ((x += a.x) >= MOD) x %= MOD; return *this; } mint operator+(const mint a) const { mint res(*this); return res += a; } mint &operator-=(const mint a) { if ((x += MOD - a.x) >= MOD) x %= MOD; return *this; } mint operator-(const mint a) const { mint res(*this); return res -= a; } mint &operator*=(const mint a) { (x *= a.x) %= MOD; return *this; } mint operator*(const mint a) const { mint res(*this); return res *= a; } mint pow(ll t) const { if (!t) { return 1; } mint a = pow(t >> 1); a *= a; if (t & 1) a *= *this; return a; } // ref. https://qiita.com/drken/items/3b4fdf0a78e7a138cd9a mint invWithGcd() const { ll a = x, b = MOD, u = 1, v = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= MOD; if (u < 0) { u += MOD; } return mint(u); } // for prime mod mint inv() const { return pow(MOD - 2); } mint &operator/=(const mint a) { return (*this) *= a.inv(); } mint operator/(const mint a) const { mint res(*this); return res /= a; } }; istream &operator>>(istream &is, const mint &a) { return is >> a.x; } ostream &operator<<(ostream &os, const mint &a) { return os << a.x; } // int main(int argc, char** argv) { // // int p; // // cin >> p; // // MOD = 13; // mint p(10); // cout << (p + 15).x << endl; // 12 (25 % 13) // cout << (p - 15).x << endl; // 8 (-5 % 13) // cout << (p * 2).x << endl; // 7 (20 % 13) // cout << (p.pow(3)).x << endl; // 12 (1000 % 13) // cout << (p / 3).x << endl; // 12 (12 * 3 = 10 (36 % 13)) // cout << p * mint(3).invWithGcd().x << endl; // 12 (12 * 3 = 10 (36 % 13)) // // mint p2(-3); // cout << p2.x << endl; // 10 (-3 % 13) // } int main(int argc, char **argv) { cin.tie(NULL); cout.tie(NULL); ios_base::sync_with_stdio(false); // cout << setprecision(10) << fixed; ll k; cin >> k; MOD = k; if (k % 2 == 0) { // even cout << -1 << endl; return 0; } mint now = 0; rep(i, k * 10) { now += mint(10).pow(i) * 7; if (now.x == 0) { cout << i + 1 << endl; return 0; } } cout << -1 << endl; return 0; }
#include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <stack> #include <string.h> #include <unordered_map> #include <vector> using namespace std; #define COUT(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << endl template <class T> void printvec(const vector<T> &v) { for (auto x : v) { cout << x << " "; } cout << endl; } template <class T> void printtree(const vector<vector<T>> &tree) { for (long long i = 0; i < tree.size(); ++i) { cout << i + 1 << ": "; printvec(tree[i]); } } template <class T, class U> void printmap(const map<T, U> &mp) { for (auto x : mp) { cout << x.first << "=>" << x.second << endl; } } 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; } #define rep(i, n) for (ll i = 0; i < n; ++i) #define all(s) s.begin(), s.end() #define sz(x) (ll)(x).size() #define fr first #define sc second #define mp make_pair #define pb push_back #define eb emplace_back typedef long long ll; typedef unsigned long long ull; typedef pair<ll, ll> P; typedef tuple<ll, ll, ll> triple; typedef double D; typedef vector<ll> vl; typedef vector<P> vp; const ll INF = 1e9; ll MOD; // Mod int // cf. https://www.youtube.com/watch?v=1Z6ofKN03_Y struct mint { ll x; mint(ll x = 0) : x((x + MOD) % MOD) {} mint &operator+=(const mint a) { if ((x += a.x) >= MOD) x %= MOD; return *this; } mint operator+(const mint a) const { mint res(*this); return res += a; } mint &operator-=(const mint a) { if ((x += MOD - a.x) >= MOD) x %= MOD; return *this; } mint operator-(const mint a) const { mint res(*this); return res -= a; } mint &operator*=(const mint a) { (x *= a.x) %= MOD; return *this; } mint operator*(const mint a) const { mint res(*this); return res *= a; } mint pow(ll t) const { if (!t) { return 1; } mint a = pow(t >> 1); a *= a; if (t & 1) a *= *this; return a; } // ref. https://qiita.com/drken/items/3b4fdf0a78e7a138cd9a mint invWithGcd() const { ll a = x, b = MOD, u = 1, v = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= MOD; if (u < 0) { u += MOD; } return mint(u); } // for prime mod mint inv() const { return pow(MOD - 2); } mint &operator/=(const mint a) { return (*this) *= a.inv(); } mint operator/(const mint a) const { mint res(*this); return res /= a; } }; istream &operator>>(istream &is, const mint &a) { return is >> a.x; } ostream &operator<<(ostream &os, const mint &a) { return os << a.x; } // int main(int argc, char** argv) { // // int p; // // cin >> p; // // MOD = 13; // mint p(10); // cout << (p + 15).x << endl; // 12 (25 % 13) // cout << (p - 15).x << endl; // 8 (-5 % 13) // cout << (p * 2).x << endl; // 7 (20 % 13) // cout << (p.pow(3)).x << endl; // 12 (1000 % 13) // cout << (p / 3).x << endl; // 12 (12 * 3 = 10 (36 % 13)) // cout << p * mint(3).invWithGcd().x << endl; // 12 (12 * 3 = 10 (36 % 13)) // // mint p2(-3); // cout << p2.x << endl; // 10 (-3 % 13) // } int main(int argc, char **argv) { cin.tie(NULL); cout.tie(NULL); ios_base::sync_with_stdio(false); // cout << setprecision(10) << fixed; ll k; cin >> k; MOD = k; if (k % 2 == 0) { // even cout << -1 << endl; return 0; } mint now = 0; rep(i, k + 5) { now += mint(10).pow(i) * 7; if (now.x == 0) { cout << i + 1 << endl; return 0; } } cout << -1 << endl; return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long #define MM(arr, x) memset(arr, x, sizeof(arr)) #define INF 0x3f3f3f3f #define Maxn 1e5 + 10; using namespace std; int main() { ios::sync_with_stdio(0); ll ans = 0, k, now = 0; cin >> k; while (ans <= 999999999) { ans++; now = (now * 10 + 7) % k; if (now == 0) { cout << ans; return 0; } } cout << -1; return 0; }
#include <bits/stdc++.h> #define ll long long #define MM(arr, x) memset(arr, x, sizeof(arr)) #define INF 0x3f3f3f3f #define Maxn 1e5 + 10; using namespace std; int main() { ios::sync_with_stdio(0); ll ans = 0, k, now = 0; cin >> k; while (ans <= 99999999) { ans++; now = (now * 10 + 7) % k; if (now == 0) { cout << ans; return 0; } } cout << -1; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
/* このコード、と~おれ! Be accepted! ∧_∧  (。・ω・。)つ━☆・*。 ⊂   ノ    ・゜+.  しーJ   °。+ *´¨)          .· ´¸.·*´¨) ¸.·*¨)           (¸.·´ (¸.·'* ☆ */ #include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <complex> #include <cstdio> #include <cstring> #include <functional> #include <iomanip> #include <iostream> #include <list> #include <map> #include <numeric> #include <queue> #include <random> #include <regex> #include <set> #include <stack> #include <string> #include <unordered_map> #include <vector> ////多倍長整数, cpp_intで宣言 // #include <boost/multiprecision/cpp_int.hpp> // using namespace boost::multiprecision; // #pragma gcc target ("avx2") // #pragma gcc optimization ("Ofast") // #pragma gcc optimization ("unroll-loops") #define rep(i, n) for (int i = 0; i < (n); ++i) #define printynl(a) printf(a ? "yes\n" : "no\n") #define printyn(a) printf(a ? "Yes\n" : "No\n") #define printYN(a) printf(a ? "YES\n" : "NO\n") #define printim(a) printf(a ? "possible\n" : "imposible\n") #define printdb(a) printf("%.50lf\n", a) // 少数出力 #define printLdb(a) printf("%.50Lf\n", a) // 少数出力 #define printdbd(a) printf("%.16lf\n", a) // 少数出力(桁少なめ) #define prints(s) printf("%s\n", s.c_str()) // string出力 #define all(x) (x).begin(), (x).end() #define deg_to_rad(deg) (((deg) / 360.0L) * 2.0L * PI) #define rad_to_deg(rad) (((rad) / 2.0L / PI) * 360.0L) #define Please return #define AC 0 #define manhattan_dist(a, b, c, d) \ (abs(a - c) + abs(b - d)) /*(a, b) から (c, d) のマンハッタン距離 */ #define inf numeric_limits<double>::infinity(); #define linf numeric_limits<long double>::infinity() using ll = long long; using ull = unsigned long long; constexpr int INF = 1073741823; constexpr int MINF = -1073741823; constexpr ll LINF = ll(4661686018427387903); constexpr ll MOD = 1e9 + 7; constexpr long double eps = 1e-6; const long double PI = acosl(-1.0L); using namespace std; void scans(string &str) { char c; str = ""; scanf("%c", &c); if (c == '\n') scanf("%c", &c); while (c != '\n' && c != -1 && c != ' ') { str += c; scanf("%c", &c); } } void scanc(char &str) { char c; scanf("%c", &c); if (c == -1) return; while (c == '\n') { scanf("%c", &c); } str = c; } double acot(double x) { return PI / 2 - atan(x); } ll LSB(ll n) { return (n & (-n)); } template <typename T> T chmin(T &a, const T &b) { if (a > b) a = b; return a; } template <typename T> T chmax(T &a, const T &b) { if (a < b) a = b; return a; } /*-----------------------------------------ここからコード-----------------------------------------*/ int main() { int k; scanf("%d", &k); if (k % 2 == 0) { puts("-1"); return 0; } else if (k % 7 == 0) { k /= 7; } ll sum = 1, r = 1; ll ans = 1; while (sum % k) { r *= 10; r %= k; sum += r; sum %= k; ++ans; if (ans >= 1e8) { ans = -1; break; } } printf("%lld\n", ans); Please AC; }
/* このコード、と~おれ! Be accepted! ∧_∧  (。・ω・。)つ━☆・*。 ⊂   ノ    ・゜+.  しーJ   °。+ *´¨)          .· ´¸.·*´¨) ¸.·*¨)           (¸.·´ (¸.·'* ☆ */ #include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <complex> #include <cstdio> #include <cstring> #include <functional> #include <iomanip> #include <iostream> #include <list> #include <map> #include <numeric> #include <queue> #include <random> #include <regex> #include <set> #include <stack> #include <string> #include <unordered_map> #include <vector> ////多倍長整数, cpp_intで宣言 // #include <boost/multiprecision/cpp_int.hpp> // using namespace boost::multiprecision; // #pragma gcc target ("avx2") // #pragma gcc optimization ("Ofast") // #pragma gcc optimization ("unroll-loops") #define rep(i, n) for (int i = 0; i < (n); ++i) #define printynl(a) printf(a ? "yes\n" : "no\n") #define printyn(a) printf(a ? "Yes\n" : "No\n") #define printYN(a) printf(a ? "YES\n" : "NO\n") #define printim(a) printf(a ? "possible\n" : "imposible\n") #define printdb(a) printf("%.50lf\n", a) // 少数出力 #define printLdb(a) printf("%.50Lf\n", a) // 少数出力 #define printdbd(a) printf("%.16lf\n", a) // 少数出力(桁少なめ) #define prints(s) printf("%s\n", s.c_str()) // string出力 #define all(x) (x).begin(), (x).end() #define deg_to_rad(deg) (((deg) / 360.0L) * 2.0L * PI) #define rad_to_deg(rad) (((rad) / 2.0L / PI) * 360.0L) #define Please return #define AC 0 #define manhattan_dist(a, b, c, d) \ (abs(a - c) + abs(b - d)) /*(a, b) から (c, d) のマンハッタン距離 */ #define inf numeric_limits<double>::infinity(); #define linf numeric_limits<long double>::infinity() using ll = long long; using ull = unsigned long long; constexpr int INF = 1073741823; constexpr int MINF = -1073741823; constexpr ll LINF = ll(4661686018427387903); constexpr ll MOD = 1e9 + 7; constexpr long double eps = 1e-6; const long double PI = acosl(-1.0L); using namespace std; void scans(string &str) { char c; str = ""; scanf("%c", &c); if (c == '\n') scanf("%c", &c); while (c != '\n' && c != -1 && c != ' ') { str += c; scanf("%c", &c); } } void scanc(char &str) { char c; scanf("%c", &c); if (c == -1) return; while (c == '\n') { scanf("%c", &c); } str = c; } double acot(double x) { return PI / 2 - atan(x); } ll LSB(ll n) { return (n & (-n)); } template <typename T> T chmin(T &a, const T &b) { if (a > b) a = b; return a; } template <typename T> T chmax(T &a, const T &b) { if (a < b) a = b; return a; } /*-----------------------------------------ここからコード-----------------------------------------*/ int main() { int k; scanf("%d", &k); if (k % 2 == 0 or k % 5 == 0) { puts("-1"); return 0; } else if (k % 7 == 0) { k /= 7; } ll sum = 1, r = 1; ll ans = 1; while (sum % k) { r *= 10; r %= k; sum += r; sum %= k; ++ans; if (ans >= 1e8) { ans = -1; break; } } printf("%lld\n", ans); Please AC; }
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TLE
p02596
C++
Runtime Error
#include <bits/stdc++.h> #define ll long long #define rep(i, a, b) for (long long i = a; i < b; i += 1) #define repr(i, a, b) for (long long i = a; i <= b; i += 1) #define vec vector<ll> #define map map<char, int> #define repa(p, A) for (auto p : A) #define pb push_back #define sort(a) sort(a.begin(), a.end()) #define reverse(a) reverse(a.begin(), a.end()) const double PI = acos(-1); const ll INF = 1000000; using namespace std; int main() { ll K; cin >> K; vec A(K); A[0] = 7; rep(i, 0, K) { A[i + 1] = (A[i] * 10 + 7) % K; } rep(i, 0, K) { if (A[i] % K == 0) { cout << i + 1 << endl; return 0; } } cout << "-1" << endl; }
#include <bits/stdc++.h> #define ll long long #define rep(i, a, b) for (long long i = a; i < b; i += 1) #define repr(i, a, b) for (long long i = a; i <= b; i += 1) #define vec vector<ll> #define map map<char, int> #define repa(p, A) for (auto p : A) #define pb push_back #define sort(a) sort(a.begin(), a.end()) #define reverse(a) reverse(a.begin(), a.end()) const double PI = acos(-1); const ll INF = 1000000; using namespace std; int main() { ll K; cin >> K; vec A(K); A[0] = 7; rep(i, 0, K - 1) { A[i + 1] = (A[i] * 10 + 7) % K; } rep(i, 0, K) { if (A[i] % K == 0) { cout << i + 1 << endl; return 0; } } cout << "-1" << endl; }
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-6
Fatal glibc error: malloc assertion failure in sysmalloc: (old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)
p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); ll n, d, cnt = 1; set<ll> s; cin >> n; ll aux = 1; if (n % 7 == 0) n %= 7; while (1) { if (s.find(aux) != s.end()) { cout << "-1"; return 0; } if (aux % n == 0) break; s.insert(aux); cnt++; aux %= n; aux = aux * 10 + 1; } cout << cnt; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); ll n, d, cnt = 1; set<ll> s; cin >> n; ll aux = 1; if (n % 7 == 0) n /= 7; while (1) { if (s.find(aux) != s.end()) { cout << "-1"; return 0; } if (aux % n == 0) break; s.insert(aux); cnt++; aux %= n; aux = aux * 10 + 1; } cout << cnt; }
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0
p02596
C++
Time Limit Exceeded
#include <iostream> #include <stdio.h> #include <algorithm> #include <cctype> #include <cmath> #include <cstring> #include <string> #include <vector> using namespace std; int main() { long long k; cin >> k; // 偶数は排除 if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } long long count = 0; long long i = 1; long long number = 7; while (1) { if (number % k == 0) { count = i; break; } number = number * 10 + 7; i++; } cout << count << endl; return 0; }
#include <iostream> #include <stdio.h> #include <algorithm> #include <cctype> #include <cmath> #include <cstring> #include <string> #include <vector> using namespace std; int main() { long long k; cin >> k; // 偶数は排除 if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } long long count = 0; long long i = 1; long long number = 7; while (1) { if (number % k == 0) { count = i; break; } number = (number % k) * 10 + 7; i++; } cout << count << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { int k; scanf("%d", &k); if (k % 2 == 0) { printf("-1"); } else { ll cnt = 0, sum = 0; while (true) { cnt++; sum = sum * 10 + 7; if (sum % k == 0) { break; } else sum %= k; } printf("%lld", cnt); } return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { int k; scanf("%d", &k); if (k % 2 == 0 || k % 5 == 0) { printf("-1"); } else { ll cnt = 0, sum = 0; while (true) { cnt++; sum = sum * 10 + 7; if (sum % k == 0) { break; } else sum %= k; } printf("%lld", cnt); } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ll long long #define vll vector<ll> #define vi vector<int> #define pb push_back #define fi first #define se second #define pii pair<int, int> #define pll pair<ll, ll> #define mii map<int, int> #define mll map<ll, ll> #define all(x) (x).begin(), (x).end() #define S(x) (int)(x).size() #define L(x) (int)(x).length() #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; const int mod = 1e9 + 7; const ll infl = 0x3f3f3f3f3f3f3f3fLL; const int infi = 0x3f3f3f3f; void solve() { ll k; cin >> k; if (k % 2 == 0) cout << -1 << '\n'; else { int cnt = 1; ll val = 7; while (val % k) { val = val * 10 % k; val = (val + 7) % k; cnt++; } cout << cnt << '\n'; } } int main() { IOS int t = 1; // cin>>t; while (t--) { solve(); } }
#include <bits/stdc++.h> using namespace std; #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define ll long long #define vll vector<ll> #define vi vector<int> #define pb push_back #define fi first #define se second #define pii pair<int, int> #define pll pair<ll, ll> #define mii map<int, int> #define mll map<ll, ll> #define all(x) (x).begin(), (x).end() #define S(x) (int)(x).size() #define L(x) (int)(x).length() #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; const int mod = 1e9 + 7; const ll infl = 0x3f3f3f3f3f3f3f3fLL; const int infi = 0x3f3f3f3f; void solve() { ll k; cin >> k; if (k % 2 == 0 || k % 5 == 0) cout << -1 << '\n'; else { int cnt = 1; ll val = 7; while (val % k) { val = val * 10 % k; val = (val + 7) % k; cnt++; } cout << cnt << '\n'; } } int main() { IOS int t = 1; // cin>>t; while (t--) { solve(); } }
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TLE
p02596
C++
Runtime Error
#include <bits/stdc++.h> // #pragma GCC optimize ("-O3") using namespace std; // mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); // const long double PI = 3.14159265358979323846; /* pi */ int main() { // ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int k; cin >> k; vector<bool> visited(k, false); int val = 0; int ans = 0; for (int i = 0; i < 1e6; i++) { ans++; val = val * 10 + 7; int rem = val % k; if (visited[rem]) break; visited[rem] = true; if (rem == 0) break; } if (visited[0]) cout << ans << "\n"; else cout << -1 << "\n"; return 0; }
#include <bits/stdc++.h> // #pragma GCC optimize ("-O3") using namespace std; // mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); // const long double PI = 3.14159265358979323846; /* pi */ int main() { // ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int k; cin >> k; vector<bool> visited(k, false); int val = 0; int ans = 0; for (int i = 0; i < 1e6; i++) { ans++; val = val * 10 + 7; val = val % k; int rem = val % k; if (visited[rem]) break; visited[rem] = true; if (rem == 0) break; } if (visited[0]) cout << ans << "\n"; else cout << -1 << "\n"; return 0; }
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0
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } else { return false; } } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } else { return false; } } #define ll long long #define double long double #define rep(i, n) for (int i = 0; i < (n); i++) #define REP(i, n) for (int i = 1; i <= (n); i++) #define mod (ll)(1e9 + 7) #define inf (ll)(3e18 + 7) #define pi (double)acos(-1.0) #define P pair<int, int> #define PiP pair<ll, pair<ll, ll>> #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() using namespace std; int main() { ll k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } ll now = 7 % k, i = 1; while (true) { if (now % k == 0) { cout << i << endl; return 0; } i++; now *= 10; now += 7; now %= k; } }
#include <bits/stdc++.h> template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } else { return false; } } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } else { return false; } } #define ll long long #define double long double #define rep(i, n) for (int i = 0; i < (n); i++) #define REP(i, n) for (int i = 1; i <= (n); i++) #define mod (ll)(1e9 + 7) #define inf (ll)(3e18 + 7) #define pi (double)acos(-1.0) #define P pair<int, int> #define PiP pair<ll, pair<ll, ll>> #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() using namespace std; int main() { ll k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } ll now = 7 % k, i = 1; while (true) { if (now % k == 0) { cout << i << endl; return 0; } i++; now *= 10; now += 7; now %= k; } }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> typedef long long ll; using namespace std; int main() { int k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } int ans = 1; int cur = 7 % k; while (cur != 0) { cur = 10 * cur + 7; cur %= k; ++ans; } cout << ans << endl; }
#include <bits/stdc++.h> typedef long long ll; using namespace std; int main() { int k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } int ans = 1; int cur = 7 % k; while (cur != 0) { cur = 10 * cur + 7; cur %= k; ++ans; if (ans > 100000000) { ans = -1; break; } } cout << ans << endl; }
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TLE
p02596
C++
Time Limit Exceeded
#include <iostream> int main() { unsigned long long N; std::cin >> N; unsigned long long amari = 0; unsigned long long last_amari = 7 % N; amari += last_amari; int cnt = 1; if (N % 2 == 0) { std::cout << -1 << std::endl; return 0; } while (amari) { last_amari *= 10; last_amari %= N; amari += last_amari; amari %= N; cnt++; } std::cout << cnt << std::endl; return 0; }
#include <iostream> int main() { unsigned long long N; std::cin >> N; unsigned long long amari = 0; unsigned long long last_amari = 7 % N; amari += last_amari; int cnt = 1; if (N % 2 == 0 || N % 5 == 0) { std::cout << -1 << std::endl; return 0; } while (amari) { last_amari *= 10; last_amari %= N; amari += last_amari; amari %= N; cnt++; } std::cout << cnt << std::endl; return 0; }
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TLE
p02596
C++
Runtime Error
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < n; i++) #define repr(i, n) for (int i = n; i >= 0; i--) #define reps(i, a, b) for (int i = a; i < b; i++) #define INF 2e9 #define ALL(v) v.begin(), v.end() using namespace std; typedef long long ll; int main() { ll k; cin >> k; vector<ll> vec(k + 1, 0); vec.at(1) = 7 % k; for (ll i = 2; i <= k + 1; i++) { if (vec.at(i - 1) == 0) { cout << i - 1 << endl; return 0; } vec.at(i) = (vec.at(i - 1) * 10 + 7) % k; } cout << -1 << endl; return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < n; i++) #define repr(i, n) for (int i = n; i >= 0; i--) #define reps(i, a, b) for (int i = a; i < b; i++) #define INF 2e9 #define ALL(v) v.begin(), v.end() using namespace std; typedef long long ll; int main() { ll k; cin >> k; vector<ll> vec(k + 2, 0); vec.at(1) = 7 % k; for (ll i = 2; i <= k + 1; i++) { if (vec.at(i - 1) == 0) { cout << i - 1 << endl; return 0; } vec.at(i) = (vec.at(i - 1) * 10 + 7) % k; } cout << -1 << endl; return 0; }
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p02596
C++
Time Limit Exceeded
// #include"bits/stdc++.h" #include <algorithm> #include <cassert> #include <climits> #include <cmath> #include <iostream> #include <map> #include <set> #include <vector> using namespace std; #define ll long long #define FOR(i, j, k, in) for (int i = j; i < k; i += in) #define rep(i, j) FOR(i, 0, j, 1) #define MP make_pair #define PB push_back #define endl "\n" #define MOD 1000000007 #define DEB(x) cout << "##" << x << "##" << endl const int INF = (int)2e9 + 9; const int SIZE = (int)2e5 + 5; // Brute force answers(BINARY SEARCH) symmetry // Change perspective int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif ll k; cin >> k; if (k % 2 == 0) { cout << -1; } else { int min1 = 0, temp = k; while (temp > 0) { temp /= 10; min1++; } int ans = 0, pref = 0; ll cnt = 7; while (1) { ans++; pref += cnt; pref %= k; if (pref == 0) { break; } cnt = (cnt * 10) % k; } cout << ans; } }
// #include"bits/stdc++.h" #include <algorithm> #include <cassert> #include <climits> #include <cmath> #include <iostream> #include <map> #include <set> #include <vector> using namespace std; #define ll long long #define FOR(i, j, k, in) for (int i = j; i < k; i += in) #define rep(i, j) FOR(i, 0, j, 1) #define MP make_pair #define PB push_back #define endl "\n" #define MOD 1000000007 #define DEB(x) cout << "##" << x << "##" << endl const int INF = (int)2e9 + 9; const int SIZE = (int)2e5 + 5; // Brute force answers(BINARY SEARCH) symmetry // Change perspective int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif ll k; cin >> k; if (k % 2 == 0) { cout << -1; } else { int min1 = 0, temp = k; while (temp > 0) { temp /= 10; min1++; } int ans = 0, pref = 0; ll cnt = 7; while (1) { ans++; pref += cnt; pref %= k; if (pref == 0) { break; } cnt = (cnt * 10) % k; if (ans >= (int)1e6) { ans = -1; break; } } cout << ans; } }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { int k; cin >> k; ll sum = 1; int a = 7 % k; int tmp = a; bool flg = true; while (a) { a = 10 * a + 7; a %= k; if (tmp == a) { flg = false; break; } sum++; } if (flg) { cout << sum << endl; } else { cout << -1 << endl; } return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { int k; cin >> k; ll sum = 1; int a = 7 % k; int tmp = a; bool flg = true; while (a) { a = 10 * a + 7; a %= k; if (sum > k) { flg = false; break; } sum++; } if (flg) { cout << sum << endl; } else { cout << -1 << endl; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { int K; cin >> K; int L, i = 1; int ans = -1; if (K % 7 == 0) L = 9 * K / 7; else L = 9 * K; if (L % 2 != 0 || L % 5 != 0) { int m = 10 % L; if (m == 1) ans = 1; else { do { m = m * 10 % L; i++; } while (m != 1); ans = i; } } cout << ans << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int K; cin >> K; int L, i = 1; int ans = -1; if (K % 7 == 0) L = 9 * K / 7; else L = 9 * K; if (L % 2 != 0 && L % 5 != 0) { int m = 10 % L; if (m == 1) ans = 1; else { do { m = m * 10 % L; i++; } while (m != 1); ans = i; } } cout << ans << endl; }
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TLE
p02596
C++
Time Limit Exceeded
#include "bits/stdc++.h" #define rep(i, N) for (int i = 0; i < N; i++) typedef long long ll; const int mod = 1e9 + 7; using namespace std; int main(void) { ll K; cin >> K; ll n = 1; ll S = 7 % K; ll d = 7 % K; auto start = clock(); while (S % K != 0) { n++; d = (d * 10) % K; S = (S + d) % K; if (((double)clock() - (double)start) / (double)CLOCKS_PER_SEC >= 1.99) { cout << -1 << endl; return 0; } } cout << n << endl; return 0; }
#include "bits/stdc++.h" #define rep(i, N) for (int i = 0; i < N; i++) typedef long long ll; const int mod = 1e9 + 7; using namespace std; int main(void) { ll K; cin >> K; ll n = 1; ll S = 7 % K; ll d = 7 % K; auto start = clock(); while (S % K != 0) { n++; d = (d * 10) % K; S = (S + d) % K; if (((double)clock() - (double)start) / (double)CLOCKS_PER_SEC >= 1.9) { cout << -1 << endl; return 0; } } cout << n << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
// May this submission get accepted #include <bits/stdc++.h> // エイリアス using ll = long signed long; using ull = long unsigned long; using ld = long double; using namespace std; // AtCoder/Codeforces 用 デバッグ検知 #ifdef ONLINE_JUDGE constexpr bool DEBUG_MODE = false; #else constexpr bool DEBUG_MODE = true; #endif // エイリアス (補完・コンパイルが重くなる) // #include <boost/multiprecision/cpp_int.hpp> // using mll = boost::multiprecision::cpp_int; // 汎用マクロ #define ALLOF(x) (x).begin(), (x).end() #define REP(i, n) for (long long i = 0, i##_len = (n); i < i##_len; i++) #define RANGE(i, is, ie) \ for (long long i = (is), i##_end = (ie); i <= i##_end; i++) #define DSRNG(i, is, ie) \ for (long long i = (is), i##_end = (ie); i >= i##_end; i--) #define STEP(i, is, ie, step) \ for (long long i = (is), i##_end = (ie), i##_step = (step); i <= i##_end; \ i += i##_step) #define UNIQUE(v) \ do { \ sort((v).begin(), (v).end()); \ (v).erase(unique((v).begin(), (v).end()), (v).end()); \ } while (false) #define FOREACH(i, q) for (auto &i : q) template <typename T, typename U> bool chmax(T &a, const U b) { if (a < b) { a = b; return true; } return false; } template <typename T, typename U> bool chmin(T &a, const U b) { if (a > b) { a = b; return true; } return false; } constexpr int INF = numeric_limits<int>::max(); constexpr long long LINF = numeric_limits<long long>::max(); constexpr long double EPS = 1e-10L; #define Yes(q) ((q) ? "Yes" : "No") #define YES(q) ((q) ? "YES" : "NO") #define Possible(q) ((q) ? "Possible" : "Impossible") #define POSSIBLE(q) ((q) ? "POSSIBLE" : "IMPOSSIBLE") #define IIF(q, t, f) ((q) ? (t) : (f)) #define DUMP(q) DUMP_FUNC(q, #q, __FILE__, __LINE__) template <typename T> void DUMP_PROC(T x) { if (is_integral<T>() || is_floating_point<T>()) cerr << "\e[32m" << x << "\e[m"; else cerr << x; } template <> void DUMP_PROC<char>(char x) { cerr << "\e[36m\'" << x << "\'\e[m"; } template <> void DUMP_PROC<string>(string x) { cerr << "\e[33m\"" << x << "\"\e[m"; } template <typename T, typename U> void DUMP_PROC(pair<T, U> x) { cerr << "{"; DUMP_PROC(x.first); cerr << ", "; DUMP_PROC(x.second); cerr << "}"; } template <typename... T, typename U, U... Seq> void DUMP_PROC(tuple<T...> &x, integer_sequence<U, Seq...>) { (void)(int[]){(cerr << ((const char *[]){"", ", "})[!!Seq] << (DUMP_PROC(get<Seq>(x)), ""), 0)...}; } template <typename... T> void DUMP_PROC(tuple<T...> x) { cerr << "{"; DUMP_PROC(x, index_sequence_for<T...>()); cerr << "}"; } template <typename T> void DUMP_PROC(vector<T> x) { cerr << "["; for (auto &xi : x) { DUMP_PROC(xi); cerr << (&xi != &*x.rbegin() ? ", " : ""); } cerr << "]"; } template <typename T> void DUMP_FUNC(T x, const char *name, const char *fn, int ln) { cerr << "\e[32m[DEBUG]\e[m " << name << ": "; DUMP_PROC(x); cerr << " @ " << fn << "(" << ln << ")" << endl; } // gcc拡張マクロ #define popcount __builtin_popcount #define popcountll __builtin_popcountll // 標準入出力 struct qin { // query input size_t sz; qin(size_t _sz = 1) : sz(_sz) {} template <typename T> operator T() const { T a; cin >> a; return a; } template <typename T> operator vector<T>() const { vector<T> a(sz); for (size_t i = 0; i < sz; i++) cin >> a[i]; return a; } template <typename T, typename U> operator pair<T, U>() const { T f; U s; cin >> f >> s; return pair<T, U>(f, s); } }; qin in1; // input one template <typename T> void say(const T x, const char *end = "\n") { cout << x << end; } void say(const ld x, const char *end = "\n") { cout << setprecision(30) << x << end; } template <typename T> void say(const vector<T> x, const char *sep = " ", const char *end = "\n") { REP(i, x.size()) { cout << x[i] << (i + 1 == i_len ? end : sep); } } template <typename T> void say(const vector<vector<T>> x, const char *sep = " ", const char *end = "\n") { REP(i, x.size()) { say(x[i], sep, end); } } // モジュール // [[LIBRARY]] // [[/LIBRARY]] // 処理内容 int main() { ios::sync_with_stdio(false); // stdioを使うときはコメントアウトすること cin.tie(nullptr); // インタラクティブ問題ではコメントアウトすること ll k = in1; ll ans = 0; ll x = 0; while (!ans || x % k != 0) { (x *= 10) %= k; (x += 7) %= k; ans++; if (ans > k * 2) { say(-1); } } say(ans); }
// May this submission get accepted #include <bits/stdc++.h> // エイリアス using ll = long signed long; using ull = long unsigned long; using ld = long double; using namespace std; // AtCoder/Codeforces 用 デバッグ検知 #ifdef ONLINE_JUDGE constexpr bool DEBUG_MODE = false; #else constexpr bool DEBUG_MODE = true; #endif // エイリアス (補完・コンパイルが重くなる) // #include <boost/multiprecision/cpp_int.hpp> // using mll = boost::multiprecision::cpp_int; // 汎用マクロ #define ALLOF(x) (x).begin(), (x).end() #define REP(i, n) for (long long i = 0, i##_len = (n); i < i##_len; i++) #define RANGE(i, is, ie) \ for (long long i = (is), i##_end = (ie); i <= i##_end; i++) #define DSRNG(i, is, ie) \ for (long long i = (is), i##_end = (ie); i >= i##_end; i--) #define STEP(i, is, ie, step) \ for (long long i = (is), i##_end = (ie), i##_step = (step); i <= i##_end; \ i += i##_step) #define UNIQUE(v) \ do { \ sort((v).begin(), (v).end()); \ (v).erase(unique((v).begin(), (v).end()), (v).end()); \ } while (false) #define FOREACH(i, q) for (auto &i : q) template <typename T, typename U> bool chmax(T &a, const U b) { if (a < b) { a = b; return true; } return false; } template <typename T, typename U> bool chmin(T &a, const U b) { if (a > b) { a = b; return true; } return false; } constexpr int INF = numeric_limits<int>::max(); constexpr long long LINF = numeric_limits<long long>::max(); constexpr long double EPS = 1e-10L; #define Yes(q) ((q) ? "Yes" : "No") #define YES(q) ((q) ? "YES" : "NO") #define Possible(q) ((q) ? "Possible" : "Impossible") #define POSSIBLE(q) ((q) ? "POSSIBLE" : "IMPOSSIBLE") #define IIF(q, t, f) ((q) ? (t) : (f)) #define DUMP(q) DUMP_FUNC(q, #q, __FILE__, __LINE__) template <typename T> void DUMP_PROC(T x) { if (is_integral<T>() || is_floating_point<T>()) cerr << "\e[32m" << x << "\e[m"; else cerr << x; } template <> void DUMP_PROC<char>(char x) { cerr << "\e[36m\'" << x << "\'\e[m"; } template <> void DUMP_PROC<string>(string x) { cerr << "\e[33m\"" << x << "\"\e[m"; } template <typename T, typename U> void DUMP_PROC(pair<T, U> x) { cerr << "{"; DUMP_PROC(x.first); cerr << ", "; DUMP_PROC(x.second); cerr << "}"; } template <typename... T, typename U, U... Seq> void DUMP_PROC(tuple<T...> &x, integer_sequence<U, Seq...>) { (void)(int[]){(cerr << ((const char *[]){"", ", "})[!!Seq] << (DUMP_PROC(get<Seq>(x)), ""), 0)...}; } template <typename... T> void DUMP_PROC(tuple<T...> x) { cerr << "{"; DUMP_PROC(x, index_sequence_for<T...>()); cerr << "}"; } template <typename T> void DUMP_PROC(vector<T> x) { cerr << "["; for (auto &xi : x) { DUMP_PROC(xi); cerr << (&xi != &*x.rbegin() ? ", " : ""); } cerr << "]"; } template <typename T> void DUMP_FUNC(T x, const char *name, const char *fn, int ln) { cerr << "\e[32m[DEBUG]\e[m " << name << ": "; DUMP_PROC(x); cerr << " @ " << fn << "(" << ln << ")" << endl; } // gcc拡張マクロ #define popcount __builtin_popcount #define popcountll __builtin_popcountll // 標準入出力 struct qin { // query input size_t sz; qin(size_t _sz = 1) : sz(_sz) {} template <typename T> operator T() const { T a; cin >> a; return a; } template <typename T> operator vector<T>() const { vector<T> a(sz); for (size_t i = 0; i < sz; i++) cin >> a[i]; return a; } template <typename T, typename U> operator pair<T, U>() const { T f; U s; cin >> f >> s; return pair<T, U>(f, s); } }; qin in1; // input one template <typename T> void say(const T x, const char *end = "\n") { cout << x << end; } void say(const ld x, const char *end = "\n") { cout << setprecision(30) << x << end; } template <typename T> void say(const vector<T> x, const char *sep = " ", const char *end = "\n") { REP(i, x.size()) { cout << x[i] << (i + 1 == i_len ? end : sep); } } template <typename T> void say(const vector<vector<T>> x, const char *sep = " ", const char *end = "\n") { REP(i, x.size()) { say(x[i], sep, end); } } // モジュール // [[LIBRARY]] // [[/LIBRARY]] // 処理内容 int main() { ios::sync_with_stdio(false); // stdioを使うときはコメントアウトすること cin.tie(nullptr); // インタラクティブ問題ではコメントアウトすること ll k = in1; ll ans = 0; ll x = 0; while (!ans || x % k != 0) { (x *= 10) %= k; (x += 7) %= k; ans++; if (ans > k * 2) { say(-1); return 0; } } say(ans); }
insert
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TLE
p02596
C++
Time Limit Exceeded
// #Sazaの1日1AC #include <bits/stdc++.h> using namespace std; const long long mod = 1000000000 + 7; const long long INF = 9e15; const double PI = 3.14159265358979323846; // マクロ // 型エイリアス using ll = long long; using P = pair<long long, long long>; using vl = vector<long long>; using vvl = vector<vector<long long>>; using vP = vector<pair<long long, long long>>; // ショートカット #define rep(i, n) for (long long i = 0; i < n; i++) #define rep2(i, k, n) for (long long i = k; i < n; i++) // 半開区間 #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define pb push_back #define mkp make_pair // 入力 #define vin(v, N) \ for (long long i = 0; i < N; i++) \ cin >> v.at(i) #define lin(n) \ long long n; \ cin >> n #define chin(x) \ char x; \ cin >> x; #define sin(s) \ string s; \ cin >> s; #define vlin(v, N) \ vector<long long> v(N); \ for (long long i = 0; i < N; i++) \ cin >> v.at(i) #define max(a, b) max((ll)a, (ll)b) #define min(a, b) min((ll)a, (ll)b) // 関数 // 最大公約数 long long gcd(long long m, long long n) { long long a = max(m, n); long long b = min(m, n); long long r = a % b; while (r != 0) { a = b; b = r; r = a % b; } return b; } // 最小公倍数 long long lcd(long long m, long long n) { return m * n / gcd(m, n); } // xのn乗 long long power(long long x, long long N) { long long ret = 1; for (long long i = 0; i < N; i++) ret *= x; return ret; } // 繰り返し二乗法 long long repeat_squaring(long long x, long long n) { if (n == 0) return 1; else if (n % 2 == 0) { long long t = repeat_squaring(x, n / 2); return t * t % mod; } else return x * repeat_squaring(x, n - 1); } // 素因数分解(mapで返す) map<long long, long long> factor(long long p) { ll p1 = p; map<long long, long long> ret; for (long long i = 2; i * i <= p1; i++) { while (p % i == 0) { ret[i]++; p /= i; } } if (p != 1) ret[p]++; return ret; } // 素数判定 bool is_prime(long long N) { for (long long i = 2; i * i <= N; i++) { if (N % i == 0) return false; } return true; } // 最大値更新 void chmax(long long &a, long long b) { a = max(a, b); } // 最小値更新 void chmin(long long &a, long long b) { a = min(a, b); } // 構造体 // Union-Find木 struct UnionFind { // メンバ変数 vector<long long> par; // par[i]:=頂点iの親 vector<long long> s; // s[i]:=頂点iが属する集合の個数(iが根のとき) // コンストラクタ UnionFind(long long N) : par(N), s(N) { for (long long i = 0; i < N; i++) { par[i] = i; // 最初はすべてが根として初期化 s[i] = 1; } } // メンバ関数 // root(i):=頂点iの根 long long root(long long i) { if (par[i] == i) return i; par[i] = root(par[i]); // 経路圧縮 return root(par[i]); // 再帰 } // size[i]:=iが属する集合の個数 long long size(long long i) { return s[root(i)]; } // same(x,y) xとyが同じ根を持つか(同じ集合に含まれるか) bool same(long long x, long long y) { return root(x) == root(y); } // unite(x,y) xの根をyの根に繋げる(集合を合併) void unite(long long x, long long y) { if (!same(x, y)) { long long rx = root(x); long long ry = root(y); par[rx] = par[ry]; s[ry] = s[rx] + s[ry]; } } }; /////////////////⊂('ω'⊂ )))Σ≡GO!///////////////// // メイン関数 int main() { // doubleの桁数 cout << fixed << setprecision(10); lin(K); ll N = 0; ll i = 0; if (K % 2 == 0) { cout << -1 << endl; return 0; } while (1) { i++; N *= 10; N += 7; if (N % K == 0) break; N %= K; } cout << i << endl; }
// #Sazaの1日1AC #include <bits/stdc++.h> using namespace std; const long long mod = 1000000000 + 7; const long long INF = 9e15; const double PI = 3.14159265358979323846; // マクロ // 型エイリアス using ll = long long; using P = pair<long long, long long>; using vl = vector<long long>; using vvl = vector<vector<long long>>; using vP = vector<pair<long long, long long>>; // ショートカット #define rep(i, n) for (long long i = 0; i < n; i++) #define rep2(i, k, n) for (long long i = k; i < n; i++) // 半開区間 #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define pb push_back #define mkp make_pair // 入力 #define vin(v, N) \ for (long long i = 0; i < N; i++) \ cin >> v.at(i) #define lin(n) \ long long n; \ cin >> n #define chin(x) \ char x; \ cin >> x; #define sin(s) \ string s; \ cin >> s; #define vlin(v, N) \ vector<long long> v(N); \ for (long long i = 0; i < N; i++) \ cin >> v.at(i) #define max(a, b) max((ll)a, (ll)b) #define min(a, b) min((ll)a, (ll)b) // 関数 // 最大公約数 long long gcd(long long m, long long n) { long long a = max(m, n); long long b = min(m, n); long long r = a % b; while (r != 0) { a = b; b = r; r = a % b; } return b; } // 最小公倍数 long long lcd(long long m, long long n) { return m * n / gcd(m, n); } // xのn乗 long long power(long long x, long long N) { long long ret = 1; for (long long i = 0; i < N; i++) ret *= x; return ret; } // 繰り返し二乗法 long long repeat_squaring(long long x, long long n) { if (n == 0) return 1; else if (n % 2 == 0) { long long t = repeat_squaring(x, n / 2); return t * t % mod; } else return x * repeat_squaring(x, n - 1); } // 素因数分解(mapで返す) map<long long, long long> factor(long long p) { ll p1 = p; map<long long, long long> ret; for (long long i = 2; i * i <= p1; i++) { while (p % i == 0) { ret[i]++; p /= i; } } if (p != 1) ret[p]++; return ret; } // 素数判定 bool is_prime(long long N) { for (long long i = 2; i * i <= N; i++) { if (N % i == 0) return false; } return true; } // 最大値更新 void chmax(long long &a, long long b) { a = max(a, b); } // 最小値更新 void chmin(long long &a, long long b) { a = min(a, b); } // 構造体 // Union-Find木 struct UnionFind { // メンバ変数 vector<long long> par; // par[i]:=頂点iの親 vector<long long> s; // s[i]:=頂点iが属する集合の個数(iが根のとき) // コンストラクタ UnionFind(long long N) : par(N), s(N) { for (long long i = 0; i < N; i++) { par[i] = i; // 最初はすべてが根として初期化 s[i] = 1; } } // メンバ関数 // root(i):=頂点iの根 long long root(long long i) { if (par[i] == i) return i; par[i] = root(par[i]); // 経路圧縮 return root(par[i]); // 再帰 } // size[i]:=iが属する集合の個数 long long size(long long i) { return s[root(i)]; } // same(x,y) xとyが同じ根を持つか(同じ集合に含まれるか) bool same(long long x, long long y) { return root(x) == root(y); } // unite(x,y) xの根をyの根に繋げる(集合を合併) void unite(long long x, long long y) { if (!same(x, y)) { long long rx = root(x); long long ry = root(y); par[rx] = par[ry]; s[ry] = s[rx] + s[ry]; } } }; /////////////////⊂('ω'⊂ )))Σ≡GO!///////////////// // メイン関数 int main() { // doubleの桁数 cout << fixed << setprecision(10); lin(K); ll N = 0; ll i = 0; if (K % 2 == 0) { cout << -1 << endl; return 0; } while (1) { i++; N *= 10; N += 7; if (N % K == 0) break; if (i > 1e7) { cout << -1 << endl; return 0; } N %= K; } cout << i << endl; }
insert
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TLE
p02596
C++
Time Limit Exceeded
// #pragma GCC target("avx") // CPU 処理並列化 // #pragma GCC optimize("O3") // CPU 処理並列化 // #pragma GCC optimize("unroll-loops") // 条件処理の呼び出しを減らす // #define BEGIN_STACK_EXTEND(size) void * stack_extend_memory_ = // malloc(size);void * stack_extend_origin_memory_;char * // stack_extend_dummy_memory_ = (char*)alloca((1+(int)(((long // long)stack_extend_memory_)&127))*16);*stack_extend_dummy_memory_ = 0;asm // volatile("mov %%rsp, %%rbx\nmov %%rax, // %%rsp":"=b"(stack_extend_origin_memory_):"a"((char*)stack_extend_memory_+(size)-1024)); // #define END_STACK_EXTEND asm volatile("mov %%rax, // %%rsp"::"a"(stack_extend_origin_memory_));free(stack_extend_memory_); #include <algorithm> #include <bitset> #include <cassert> #include <complex> #include <deque> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <stack> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <string> #include <time.h> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; const long long mod = 1000000007; const long long inf = mod * mod; const long long d2 = (mod + 1) / 2; const double EPS = 1e-11; const double INF = 1e+10; const double PI = acos(-1.0); const int C_SIZE = 11100000; const int UF_SIZE = 3100000; namespace { long long fact[C_SIZE]; long long finv[C_SIZE]; long long inv[C_SIZE]; inline long long Comb(int a, int b) { if (a < b || b < 0) return 0; return fact[a] * finv[b] % mod * finv[a - b] % mod; } void init_C(int n) { fact[0] = finv[0] = inv[1] = 1; for (int i = 2; i < n; i++) { inv[i] = (mod - (mod / i) * inv[mod % i] % mod) % mod; } for (int i = 1; i < n; i++) { fact[i] = fact[i - 1] * i % mod; finv[i] = finv[i - 1] * inv[i] % mod; } } long long pw(long long a, long long b) { if (a < 0LL) return 0; if (b < 0LL) return 0; long long ret = 1; while (b) { if (b % 2) ret = ret * a % mod; a = a * a % mod; b /= 2; } return ret; } long long pw_mod(long long a, long long b, long long M) { if (a < 0LL) return 0; if (b < 0LL) return 0; long long ret = 1; while (b) { if (b % 2) ret = ret * a % M; a = a * a % M; b /= 2; } return ret; } int pw_mod_int(int a, int b, int M) { if (a < 0) return 0; if (b < 0) return 0; int ret = 1; while (b) { if (b % 2) ret = (long long)ret * a % M; a = (long long)a * a % M; b /= 2; } return ret; } int ABS(int a) { return max(a, -a); } long long ABS(long long a) { return max(a, -a); } double ABS(double a) { return max(a, -a); } int sig(double r) { return (r < -EPS) ? -1 : (r > +EPS) ? +1 : 0; } int UF[UF_SIZE]; void init_UF(int n) { for (int i = 0; i < n; i++) UF[i] = -1; } int FIND(int a) { if (UF[a] < 0) return a; return UF[a] = FIND(UF[a]); } void UNION(int a, int b) { a = FIND(a); b = FIND(b); if (a == b) return; if (UF[a] > UF[b]) swap(a, b); UF[a] += UF[b]; UF[b] = a; } } // namespace // ここから編集しろ int main() { int a; scanf("%d", &a); int cur = 7 % a; int ret = 1; while (cur) { cur = (cur * 10 + 7) % a; ret++; } printf("%d\n", ret); }
// #pragma GCC target("avx") // CPU 処理並列化 // #pragma GCC optimize("O3") // CPU 処理並列化 // #pragma GCC optimize("unroll-loops") // 条件処理の呼び出しを減らす // #define BEGIN_STACK_EXTEND(size) void * stack_extend_memory_ = // malloc(size);void * stack_extend_origin_memory_;char * // stack_extend_dummy_memory_ = (char*)alloca((1+(int)(((long // long)stack_extend_memory_)&127))*16);*stack_extend_dummy_memory_ = 0;asm // volatile("mov %%rsp, %%rbx\nmov %%rax, // %%rsp":"=b"(stack_extend_origin_memory_):"a"((char*)stack_extend_memory_+(size)-1024)); // #define END_STACK_EXTEND asm volatile("mov %%rax, // %%rsp"::"a"(stack_extend_origin_memory_));free(stack_extend_memory_); #include <algorithm> #include <bitset> #include <cassert> #include <complex> #include <deque> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <stack> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <string> #include <time.h> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; const long long mod = 1000000007; const long long inf = mod * mod; const long long d2 = (mod + 1) / 2; const double EPS = 1e-11; const double INF = 1e+10; const double PI = acos(-1.0); const int C_SIZE = 11100000; const int UF_SIZE = 3100000; namespace { long long fact[C_SIZE]; long long finv[C_SIZE]; long long inv[C_SIZE]; inline long long Comb(int a, int b) { if (a < b || b < 0) return 0; return fact[a] * finv[b] % mod * finv[a - b] % mod; } void init_C(int n) { fact[0] = finv[0] = inv[1] = 1; for (int i = 2; i < n; i++) { inv[i] = (mod - (mod / i) * inv[mod % i] % mod) % mod; } for (int i = 1; i < n; i++) { fact[i] = fact[i - 1] * i % mod; finv[i] = finv[i - 1] * inv[i] % mod; } } long long pw(long long a, long long b) { if (a < 0LL) return 0; if (b < 0LL) return 0; long long ret = 1; while (b) { if (b % 2) ret = ret * a % mod; a = a * a % mod; b /= 2; } return ret; } long long pw_mod(long long a, long long b, long long M) { if (a < 0LL) return 0; if (b < 0LL) return 0; long long ret = 1; while (b) { if (b % 2) ret = ret * a % M; a = a * a % M; b /= 2; } return ret; } int pw_mod_int(int a, int b, int M) { if (a < 0) return 0; if (b < 0) return 0; int ret = 1; while (b) { if (b % 2) ret = (long long)ret * a % M; a = (long long)a * a % M; b /= 2; } return ret; } int ABS(int a) { return max(a, -a); } long long ABS(long long a) { return max(a, -a); } double ABS(double a) { return max(a, -a); } int sig(double r) { return (r < -EPS) ? -1 : (r > +EPS) ? +1 : 0; } int UF[UF_SIZE]; void init_UF(int n) { for (int i = 0; i < n; i++) UF[i] = -1; } int FIND(int a) { if (UF[a] < 0) return a; return UF[a] = FIND(UF[a]); } void UNION(int a, int b) { a = FIND(a); b = FIND(b); if (a == b) return; if (UF[a] > UF[b]) swap(a, b); UF[a] += UF[b]; UF[b] = a; } } // namespace // ここから編集しろ int main() { int a; scanf("%d", &a); int cur = 7 % a; int ret = 1; while (cur) { cur = (cur * 10 + 7) % a; ret++; if (ret > a) { ret = -1; break; } } printf("%d\n", ret); }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define pi 3.14159 using namespace std; typedef long long LL; const LL MOD = 1e9 + 7; const int N = 1e5 + 7, M = 1e7, OO = 0x3f3f3f3f; #define AC \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); \ cin.sync_with_stdio(0); long long num; long long solve(long long mod) { if (mod == 0) { return 0; } return 1 + solve((mod * 10 + 7) % num); } int main() { cin >> num; if (num % 2 == 0) { printf("-1\n"); } else { cout << solve(7 % num) + 1 << endl; } return 0; }
#include <bits/stdc++.h> #define pi 3.14159 using namespace std; typedef long long LL; const LL MOD = 1e9 + 7; const int N = 1e5 + 7, M = 1e7, OO = 0x3f3f3f3f; #define AC \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); \ cin.sync_with_stdio(0); long long num; long long solve(long long mod) { if (mod == 0) { return 0; } return 1 + solve((mod * 10 + 7) % num); } int main() { cin >> num; if (num % 2 == 0 || num % 10 == 5) { printf("-1\n"); } else { cout << solve(7 % num) + 1 << endl; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define endl '\n' #define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0) #define zy -2147382637 #define bql 2147483647 #define ll long long #define ull unsigned long long #define ld long double #define il inline #define sz(x) x.size() #define maxn 100010 #define rp(i, l, r) for (int i = l; i <= r; i++) #define rb(i, r, l) for (int i = r; i >= l; i--) #define fi first #define se second #define pb push_back #define mp make_pair using namespace std; ll max(ll a, ll b) { if (a > b) return a; else return b; } ll min(ll a, ll b) { if (a < b) return a; else return b; } ll lowbit(ll x) { return x & (-x); } ll prime(ll x) { if (x <= 1) return false; for (int i = 2; i <= int(sqrt(x)); i++) { if (x % i == 0) return false; } return true; } bool cmp(ll a, ll b) { return a > b; } ll gcd(ll a, ll b) { ll r; while (b > 0) { r = a % b; a = b; b = r; } return a; } ll powmod(ll a, ll b, ll mod) { ll res = 1; a %= mod; assert(b >= 0); for (; b; b >>= 1) { if (b & 1) res = res * a % mod; a = a * a % mod; } return res; } inline int readint() { int f = 1, x = 0; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch <= '9' && ch >= '0') x = x * 10 + ch - '0', ch = getchar(); return f * x; } inline ll readll() { ll f = 1, x = 0; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch <= '9' && ch >= '0') x = x * 10 + ch - '0', ch = getchar(); return f * x; } void fl(string name) { freopen((name + ".in").c_str(), "r", stdin); freopen((name + ".out").c_str(), "w", stdout); } const int dx[8] = {-1, 1, 0, 0, -1, 1, -1, 1}, dy[8] = {0, 0, -1, 1, -1, -1, 1, 1}; ll n; int main() { cin >> n; if (n % 2 == 0) { cout << -1 << endl; return 0; } ll rem = 7, p = 1; while (rem % n != 0) { rem = (rem * 10 + 7) % n; p++; } cout << p << endl; return 0; } /* stuff to remember * int overflow, array bounds * special cases (n=1? n=0?) * do something instead of nothing and stay organized * USE STATIC ARRAYS * DEFINING ARRAYS BEFORE main() * DO NOT DEFINE ARRAYS IN main() * USE INT INSTEAD OF LL,NOTICE THE MLE */
#include <bits/stdc++.h> #define endl '\n' #define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0) #define zy -2147382637 #define bql 2147483647 #define ll long long #define ull unsigned long long #define ld long double #define il inline #define sz(x) x.size() #define maxn 100010 #define rp(i, l, r) for (int i = l; i <= r; i++) #define rb(i, r, l) for (int i = r; i >= l; i--) #define fi first #define se second #define pb push_back #define mp make_pair using namespace std; ll max(ll a, ll b) { if (a > b) return a; else return b; } ll min(ll a, ll b) { if (a < b) return a; else return b; } ll lowbit(ll x) { return x & (-x); } ll prime(ll x) { if (x <= 1) return false; for (int i = 2; i <= int(sqrt(x)); i++) { if (x % i == 0) return false; } return true; } bool cmp(ll a, ll b) { return a > b; } ll gcd(ll a, ll b) { ll r; while (b > 0) { r = a % b; a = b; b = r; } return a; } ll powmod(ll a, ll b, ll mod) { ll res = 1; a %= mod; assert(b >= 0); for (; b; b >>= 1) { if (b & 1) res = res * a % mod; a = a * a % mod; } return res; } inline int readint() { int f = 1, x = 0; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch <= '9' && ch >= '0') x = x * 10 + ch - '0', ch = getchar(); return f * x; } inline ll readll() { ll f = 1, x = 0; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch <= '9' && ch >= '0') x = x * 10 + ch - '0', ch = getchar(); return f * x; } void fl(string name) { freopen((name + ".in").c_str(), "r", stdin); freopen((name + ".out").c_str(), "w", stdout); } const int dx[8] = {-1, 1, 0, 0, -1, 1, -1, 1}, dy[8] = {0, 0, -1, 1, -1, -1, 1, 1}; ll n; int main() { cin >> n; if (n % 2 == 0 || n % 5 == 0) { cout << -1 << endl; return 0; } ll rem = 7, p = 1; while (rem % n != 0) { rem = (rem * 10 + 7) % n; p++; } cout << p << endl; return 0; } /* stuff to remember * int overflow, array bounds * special cases (n=1? n=0?) * do something instead of nothing and stay organized * USE STATIC ARRAYS * DEFINING ARRAYS BEFORE main() * DO NOT DEFINE ARRAYS IN main() * USE INT INSTEAD OF LL,NOTICE THE MLE */
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; long long i = 0, k, n; int main() { cin >> k; while (i < 1000000220) { i++; n = (n * 10 + 7) % k; if (n == 0) { cout << i; return 0; } } cout << -1; return 0; }
#include <bits/stdc++.h> using namespace std; long long i = 0, k, n; int main() { cin >> k; while (i < 1000000) { i++; n = (n * 10 + 7) % k; if (n == 0) { cout << i; return 0; } } cout << -1; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define db(x) cout << x << '\n' #define db1(x) cout << #x << "=" << x << '\n' #define db2(x, y) cout << #x << "=" << x << "," << #y << "=" << y << '\n' #define db3(x, y, z) \ cout << #x << "=" << x << "," << #y << "=" << y << "," << #z << "=" << z \ << '\n' #define repi(i, n) for (int i = 0; i < (n); ++i) // #define repA(i,a,n) for(int i=a;i<=(n);++i) // #define repD(i,a,n) for(int i=a;i>=(n);--i) #define ll long long int #define endl '\n' #define lld long long double #define vi vector<int> #define vl vector<ll> #define vb vector<bool> #define vvi vector<vector<int>> #define err(t) cout << "Error : " << t << endl; #define all(v) v.begin(), v.end() #define mp make_pair #define M 100000 #define MD 1000000007 // 998244353 #define pb push_back #define rep(i, a, b) for (ll i = a; i <= (b); i++) #define pii pair<int, int> #define pll pair<ll, ll> #define vec(a) vector<a> #define se second #define fi first #define inf 0xffffffff #define inchar getchar_unlocked #define outchar(x) putchar_unlocked(x) // template <typename T> // using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; ll binpow(ll a, ll b) { if (a == 0) return 0; if (b == 0) return 1; ll ans = 1; while (b > 0) { if (b & 1) ans = ans * a; a = a * a; b = b >> 1; } return ans; } template <typename T> T Min(T a, T b) { return a < b ? a : b; } template <typename T> T Max(T a, T b) { return a > b ? a : b; } int32_t main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); // int n;cin>>n; // string s;cin>>s; // ll n;cin>>n; vl a(n); repi(i,n) cin>>a[i]; ll rem; int k; cin >> k; if (k & 1) { ll t = 1; rem = 7 % k; while (rem) { rem *= 10; rem += 7; rem %= k; t++; } db(t); } else db(-1); /* int test1;cin>>test1;while(test1--){ } //*/ return 0; }
#include <bits/stdc++.h> using namespace std; #define db(x) cout << x << '\n' #define db1(x) cout << #x << "=" << x << '\n' #define db2(x, y) cout << #x << "=" << x << "," << #y << "=" << y << '\n' #define db3(x, y, z) \ cout << #x << "=" << x << "," << #y << "=" << y << "," << #z << "=" << z \ << '\n' #define repi(i, n) for (int i = 0; i < (n); ++i) // #define repA(i,a,n) for(int i=a;i<=(n);++i) // #define repD(i,a,n) for(int i=a;i>=(n);--i) #define ll long long int #define endl '\n' #define lld long long double #define vi vector<int> #define vl vector<ll> #define vb vector<bool> #define vvi vector<vector<int>> #define err(t) cout << "Error : " << t << endl; #define all(v) v.begin(), v.end() #define mp make_pair #define M 100000 #define MD 1000000007 // 998244353 #define pb push_back #define rep(i, a, b) for (ll i = a; i <= (b); i++) #define pii pair<int, int> #define pll pair<ll, ll> #define vec(a) vector<a> #define se second #define fi first #define inf 0xffffffff #define inchar getchar_unlocked #define outchar(x) putchar_unlocked(x) // template <typename T> // using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, // tree_order_statistics_node_update>; ll binpow(ll a, ll b) { if (a == 0) return 0; if (b == 0) return 1; ll ans = 1; while (b > 0) { if (b & 1) ans = ans * a; a = a * a; b = b >> 1; } return ans; } template <typename T> T Min(T a, T b) { return a < b ? a : b; } template <typename T> T Max(T a, T b) { return a > b ? a : b; } int32_t main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); // int n;cin>>n; // string s;cin>>s; // ll n;cin>>n; vl a(n); repi(i,n) cin>>a[i]; ll rem; int k; cin >> k; if (k & 1) { ll t = 1; rem = 7 % k; while (rem) { rem *= 10; rem += 7; rem %= k; t++; if (t > k) { db(-1); return 0; } } db(t); } else db(-1); /* int test1;cin>>test1;while(test1--){ } //*/ return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define pb push_back #define mp make_pair typedef long long int ll; void solve() { ll k; cin >> k; ll total = 0; for (int i = 1; i <= 1e9; i++) { total = (total * 10 + 7) % k; if (total == 0) { cout << i; return; } } cout << -1; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("1input.txt", "r", stdin); freopen("1output.txt", "w", stdout); #endif int t = 1; // cin >> t; while (t--) { solve(); cout << "\n"; } return 0; }
#include <bits/stdc++.h> using namespace std; #define pb push_back #define mp make_pair typedef long long int ll; void solve() { ll k; cin >> k; ll total = 0; for (int i = 1; i <= 1e8; i++) { total = (total * 10 + 7) % k; if (total == 0) { cout << i; return; } } cout << -1; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("1input.txt", "r", stdin); freopen("1output.txt", "w", stdout); #endif int t = 1; // cin >> t; while (t--) { solve(); cout << "\n"; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <iostream> using namespace std; int main() { int K; cin >> K; int C = 1; int M = 7; if (M % K == 0) { cout << 1; } else if (K % 2 == 0) { cout << -1; } else { M = 77 % K; C = 2; while (M != 0 && M != (7 % K)) { C += 1; M = (M * 10 + 7) % K; } if (M == 0) { cout << C; } else { cout << -1; } } }
#include <iostream> using namespace std; int main() { int K; cin >> K; int C = 1; int M = 7; if (M % K == 0) { cout << 1; } else if (K % 2 == 0 || K % 5 == 0) { cout << -1; } else { M = 77 % K; C = 2; while (M != 0 && M != (7 % K)) { C += 1; M = (M * 10 + 7) % K; } if (M == 0) { cout << C; } else { cout << -1; } } }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { int k; cin >> k; ll ans = 0; if (k % 2 == 0) cout << -1 << endl; else { ll num = 7, col = 1; while (num % k != 0) { ans++; num %= k; col *= 10; col %= k; num += 7 * col; } cout << ans + 1 << endl; } return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { int k; cin >> k; ll ans = 0; if (k % 2 == 0) cout << -1 << endl; else if (k % 5 == 0) cout << -1 << endl; else { ll num = 7, col = 1; while (num % k != 0) { ans++; num %= k; col *= 10; col %= k; num += 7 * col; } cout << ans + 1 << endl; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); ll k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } int ans = 1; ll r = 7 % k; while (r != 0) { r = r * 10 + 7; r %= k; ans++; } cout << ans << endl; return 0; }
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); ll k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } int ans = 1; ll r = 7 % k; while (r != 0) { r = r * 10 + 7; r %= k; ans++; } cout << ans << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; typedef long long int ll; #define debug(val) "[ " << #val " : " << (val) #define space " " #define vi vector<int> #define vl vector<ll> #define vll vector<vector<ll>> #define vii vector<vector<int>> #define PI (double)(atan(1) * 4) #define pb push_back #define pi pair<int, int> #define ff first #define ss second #define INF 2000000000 #define delta 0.0000000001 vi dx = {-1, 0, 0, 1}; vi dy = {0, -1, 1, 0}; const int Mod = 1000 * 1000 * 1000 + 7; vll mul_mat(vll a, vll b) { vll res(2, vl(2, 0)); int n = 2; for (int i = 0; i < n; i++) { for (int j = 0; j < 2; j++) { for (int k = 0; k < 2; k++) { res[i][j] += a[i][k] * b[k][j]; res[i][j] %= Mod; } } } return res; } ll powmod(ll a, ll b, ll mod) { ll res = 1; while (b > 0) { if (b & 1) { res = res * a; res %= mod; } b >>= 1; a = a * a; a %= mod; } return res; } void solve() { ll n; cin >> n; ll com = 0; for (ll i = 0; i <= 5000000; i++) { ll f = powmod(2, i, n); ll s = powmod(5, i, n); ll t = 7; com += (f * s * t); com %= n; if (com == 0) { cout << i + 1 << endl; return; } } cout << -1 << endl; } int main() { #ifdef _DEBUG freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // FAST IO int q = 1; // cin >> q; for (int i = 1; i <= q; i++) { solve(); } }
#include <bits/stdc++.h> using namespace std; typedef long long int ll; #define debug(val) "[ " << #val " : " << (val) #define space " " #define vi vector<int> #define vl vector<ll> #define vll vector<vector<ll>> #define vii vector<vector<int>> #define PI (double)(atan(1) * 4) #define pb push_back #define pi pair<int, int> #define ff first #define ss second #define INF 2000000000 #define delta 0.0000000001 vi dx = {-1, 0, 0, 1}; vi dy = {0, -1, 1, 0}; const int Mod = 1000 * 1000 * 1000 + 7; vll mul_mat(vll a, vll b) { vll res(2, vl(2, 0)); int n = 2; for (int i = 0; i < n; i++) { for (int j = 0; j < 2; j++) { for (int k = 0; k < 2; k++) { res[i][j] += a[i][k] * b[k][j]; res[i][j] %= Mod; } } } return res; } ll powmod(ll a, ll b, ll mod) { ll res = 1; while (b > 0) { if (b & 1) { res = res * a; res %= mod; } b >>= 1; a = a * a; a %= mod; } return res; } void solve() { ll n; cin >> n; ll com = 0; for (ll i = 0; i <= 2000000; i++) { ll f = powmod(2, i, n); ll s = powmod(5, i, n); ll t = 7; com += (f * s * t); com %= n; if (com == 0) { cout << i + 1 << endl; return; } } cout << -1 << endl; } int main() { #ifdef _DEBUG freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // FAST IO int q = 1; // cin >> q; for (int i = 1; i <= q; i++) { solve(); } }
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p02596
C++
Time Limit Exceeded
/* YATIN KWATRA _03_08_14 Let's Hoop.. __oooo // / o / / | o | / |__ o | | __/ o | | / oooo | / | _______________________ | | | |_______________________| || |___ \__/\_/\_/\/\/\/\/\/\/ || | \ \/\/\/\/\/\/\/\/\/ || \ \ \/\/\/\/\/\/\/\/ | | | | \/\/\/\/\/\/\/ | | | | \/\/\/\/\/\/ | | \_/ |\/\/\/\/\/| \ \ \__ |/\/\/\/\/\| | \ | | | | | | | | | | | | |________| |________| || | | | | | / | | / / /\|__________| | / / | | / | | | \ | \ \ \ \ \ \ | \ \ | \ \ |_ \\_/ \ | | | / | | |_/ HOOPER_4_LYF.. */ // AC BAKSHI RABBA // #pragma GCC optimize "trapv" #include <bits/stdc++.h> #define ll long long #define ld long double #define ull unsigned long long #define FIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define endl "\n" #define fo(i, a, b) for (int i = a; i <= b; i++) #define rfo(i, a, b) for (int i = a; i >= b; i--) #define vii vector<int> #define vll vector<ll> #define pq priority_queue #define uom unordered_map #define all(v) v.begin(), v.end() #define mp make_pair #define pb push_back #define pob pop_back #define ff first #define ss second #define pii pair<int, int> #define pll pair<long, long> #define mll map<ll, ll> #define mii map<int, int> #define vvii vector<vii> #define vvll vector<vll> #define mod 1000000007 #define MIN -1e9 #define pi 3.1415926535897932384626433832795 using namespace std; void INPUT() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif } /* -> Check For Overflows -> Out of Bounds -> Initialisations of global arrays and variables -> Read the Question and the sample test cases carefully -> Its not Always Complex, Try to simplify -> write it down and try to solve -> Have Faith in urself and in ur approach -> If it seems totally out of reach, switch to next :) -> And Come Back later, if possible .. o- - - \o __| o/ /| vv`\ /| | | | / \_ | / \ | | / | | Thats what I call a Tappu / Blocked_shot / Rejection... Time to Code Now..... */ void solve() { int n; cin >> n; if (!(n & 1) and !(n % 5)) { cout << -1 << endl; return; } ll no = 7; int ans = 0; while (1) { ans++; if (!(no % n)) { cout << ans << endl; return; } no %= n; no = no * 10 + 7; } } int main() { FIO INPUT(); int t; t = 1; // cin >> t; fo(i, 0, t - 1) { solve(); } return 0; }
/* YATIN KWATRA _03_08_14 Let's Hoop.. __oooo // / o / / | o | / |__ o | | __/ o | | / oooo | / | _______________________ | | | |_______________________| || |___ \__/\_/\_/\/\/\/\/\/\/ || | \ \/\/\/\/\/\/\/\/\/ || \ \ \/\/\/\/\/\/\/\/ | | | | \/\/\/\/\/\/\/ | | | | \/\/\/\/\/\/ | | \_/ |\/\/\/\/\/| \ \ \__ |/\/\/\/\/\| | \ | | | | | | | | | | | | |________| |________| || | | | | | / | | / / /\|__________| | / / | | / | | | \ | \ \ \ \ \ \ | \ \ | \ \ |_ \\_/ \ | | | / | | |_/ HOOPER_4_LYF.. */ // AC BAKSHI RABBA // #pragma GCC optimize "trapv" #include <bits/stdc++.h> #define ll long long #define ld long double #define ull unsigned long long #define FIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define endl "\n" #define fo(i, a, b) for (int i = a; i <= b; i++) #define rfo(i, a, b) for (int i = a; i >= b; i--) #define vii vector<int> #define vll vector<ll> #define pq priority_queue #define uom unordered_map #define all(v) v.begin(), v.end() #define mp make_pair #define pb push_back #define pob pop_back #define ff first #define ss second #define pii pair<int, int> #define pll pair<long, long> #define mll map<ll, ll> #define mii map<int, int> #define vvii vector<vii> #define vvll vector<vll> #define mod 1000000007 #define MIN -1e9 #define pi 3.1415926535897932384626433832795 using namespace std; void INPUT() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif } /* -> Check For Overflows -> Out of Bounds -> Initialisations of global arrays and variables -> Read the Question and the sample test cases carefully -> Its not Always Complex, Try to simplify -> write it down and try to solve -> Have Faith in urself and in ur approach -> If it seems totally out of reach, switch to next :) -> And Come Back later, if possible .. o- - - \o __| o/ /| vv`\ /| | | | / \_ | / \ | | / | | Thats what I call a Tappu / Blocked_shot / Rejection... Time to Code Now..... */ void solve() { int n; cin >> n; if (!(n & 1) or !(n % 5)) { cout << -1 << endl; return; } ll no = 7; int ans = 0; while (1) { ans++; if (!(no % n)) { cout << ans << endl; return; } no %= n; no = no * 10 + 7; } } int main() { FIO INPUT(); int t; t = 1; // cin >> t; fo(i, 0, t - 1) { solve(); } return 0; }
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p02596
C++
Time Limit Exceeded
#include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #include <queue> using namespace std; typedef long long ll; const int inf = 0x3f3f3f3f; const int mod = (1 ? 1e9 + 7 : 998244353); const int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1}; ll a, b, c, d, e, f, n, T; int main() { ios::sync_with_stdio(false); cin.tie(0); cin >> a; if (a % 2 == 0) cout << -1 << endl; else { b = 7; c = 1; while (b % a != 0) { b %= a; b *= 10; b += 7; c++; } cout << c << endl; } }
#include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #include <queue> using namespace std; typedef long long ll; const int inf = 0x3f3f3f3f; const int mod = (1 ? 1e9 + 7 : 998244353); const int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1}; ll a, b, c, d, e, f, n, T; int main() { ios::sync_with_stdio(false); cin.tie(0); cin >> a; if (a % 2 == 0 || a % 5 == 0) cout << -1 << endl; else { b = 7; c = 1; while (b % a != 0) { b %= a; b *= 10; b += 7; c++; } cout << c << endl; } }
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p02596
C++
Time Limit Exceeded
#include <algorithm> #include <climits> #include <cmath> #include <cstring> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <string> #include <vector> #define REP(i, n) for (int i = 0; i < n; i++) #define REPR(i, n) for (int i = n; i >= 0; i--) #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 VSORT(v) sort(v.begin(), v.end()); #define VE vector<int> #define VEP vector<pair<int, int>> #define llong long long #define pb(a) push_back(a) using namespace std; const vector<VE> DIR{{-1, 0}, {1, 0}, {0, -1}, {0, 1}}; const int z = 1000000007; long long GCD(long long a, long long b) { if (b == 0) return a; else return GCD(b, a % b); } int main() { int k; cin >> k; int modk7 = 7 % k; int mod_k = 7 % k; int ans = 1; if (k % 2 == 0) { cout << -1 << endl; return 0; } while (1) { if (mod_k == 0) break; mod_k = (mod_k * 10 + modk7) % k; ans++; } cout << ans << endl; ; return 0; }
#include <algorithm> #include <climits> #include <cmath> #include <cstring> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <string> #include <vector> #define REP(i, n) for (int i = 0; i < n; i++) #define REPR(i, n) for (int i = n; i >= 0; i--) #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 VSORT(v) sort(v.begin(), v.end()); #define VE vector<int> #define VEP vector<pair<int, int>> #define llong long long #define pb(a) push_back(a) using namespace std; const vector<VE> DIR{{-1, 0}, {1, 0}, {0, -1}, {0, 1}}; const int z = 1000000007; long long GCD(long long a, long long b) { if (b == 0) return a; else return GCD(b, a % b); } int main() { int k; cin >> k; int modk7 = 7 % k; int mod_k = 7 % k; int ans = 1; if (k % 2 == 0) { cout << -1 << endl; return 0; } while (1) { if (ans > 10000000) { ans = -1; break; } if (mod_k == 0) break; mod_k = (mod_k * 10 + modk7) % k; ans++; } cout << ans << endl; ; return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using uint = unsigned; using pcc = pair<char, char>; using pii = pair<int, int>; using pll = pair<ll, ll>; using pdd = pair<double, double>; using tuplis = array<ll, 3>; template <class T> using pq = priority_queue<T, vector<T>, greater<T>>; const ll LINF = 0x1fffffffffffffff; const ll MINF = 0x7fffffffffff; const int INF = 0x3fffffff; const int MOD = 1000000007; const int MODD = 998244353; const ld DINF = numeric_limits<ld>::infinity(); const ld EPS = 1e-9; const ld PI = 3.1415926535897932; const ll dx[] = {0, 1, 0, -1, 1, -1, 1, -1}; const ll dy[] = {1, 0, -1, 0, 1, 1, -1, -1}; #define overload4(_1, _2, _3, _4, name, ...) name #define overload3(_1, _2, _3, name, ...) name /*繰り返し*/ #define rep1(n) for (ll i = 0; i < n; ++i) // n回repeat #define rep2(i, n) for (ll i = 0; i < n; ++i) // n回repeat(変数指定) #define rep3(i, a, b) for (ll i = a; i < b; ++i) // a-bまでrepeat #define rep4(i, a, b, c) \ for (ll i = a; i < b; i += c) // a-bまで公差cでrepeat(等差数列で使えそう) #define rep(...) \ overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__) // repeatまとめ #define rrep1(n) for (ll i = (n); i--;) #define rrep2(i, n) for (ll i = (n); i--;) #define rrep3(i, a, b) for (ll i = (b); i-- > (a);) #define rrep4(i, a, b, c) for (ll i = a + (b - a - 1) / c * c; i >= a; i -= c) #define rrep(...) \ overload4(__VA_ARGS__, rrep4, rrep3, rrep2, \ rrep1)(__VA_ARGS__) // 逆repeatまとめ #define each1(i, a) for (auto &&i : a) #define each2(x, y, a) for (auto &&[x, y] : a) #define each3(x, y, z, a) for (auto &&[x, y, z] : a) #define each(...) \ overload4(__VA_ARGS__, each3, each2, \ each1)(__VA_ARGS__) // 配列の各要素の読み出し #define all1(i) begin(i), end(i) #define all2(i, a) begin(i), begin(i) + a #define all3(i, a, b) begin(i) + a, begin(i) + b #define all(...) \ overload3(__VA_ARGS__, all3, all2, \ all1)(__VA_ARGS__) // vectorの始めと終わりの読み取り #define rall1(i) (i).rbegin(), (i).rend() #define rall2(i, k) (i).rbegin(), (i).rbegin() + k #define rall3(i, a, b) (i).rbegin() + a, (i).rbegin() + b #define rall(...) \ overload3(__VA_ARGS__, rall3, rall2, \ rall1)(__VA_ARGS__) // 逆イテレータの取得(rbegin:末尾,rend:頭) #define sum(...) \ accumulate( \ all(__VA_ARGS__), \ 0LL) // vectorの合計(int形で受け付けてしまうので,小数で扱いたい場合はdsumを使う) #define dsum(...) \ accumulate(all(__VA_ARGS__), 0.0L) // 小数で扱う(long long doubleなど) #define elif else if #define unless(a) if (!(a)) #define mp make_pair #define mt make_tuple /*標準入力*/ #define INT(...) \ int __VA_ARGS__; \ in(__VA_ARGS__) // int型標準入力受付,以下LDまで同様 #define LL(...) \ ll __VA_ARGS__; \ in(__VA_ARGS__) #define ULL(...) \ ull __VA_ARGS__; \ in(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ in(__VA_ARGS__) #define CHR(...) \ char __VA_ARGS__; \ in(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ in(__VA_ARGS__) #define LD(...) \ ld __VA_ARGS__; \ in(__VA_ARGS__) /*vector操作*/ #define Sort(a) sort(all(a)) // 昇順ソート #define RSort(vec) sort(vec.begin(), vec.end(), greater<ll>()) // 降順ソート #define Rev(a) reverse(all(a)) // 逆順 #define Uniq(a) \ sort(all(a)); \ a.erase(unique(all(a)), end(a)) #define vec(type, name, ...) vector<type> name(__VA_ARGS__) // type型vectorの定義 #define VEC(type, name, size) \ vector<type> name(size); \ in(name) // type型vector(size指定)標準入力受付 #define vv(type, name, h, ...) \ vector<vector<type>> name(h, vector<type>(__VA_ARGS__)) #define VV(type, name, h, w) \ vector<vector<type>> name(h, vector<type>(w)); \ in(name) #define IV(type, name, size) \ vector<pair<int, int>> name; \ for (int i = 0; i < size; i++) { \ int a_i; \ cin >> a_i; \ name.emplace_back(a_i, i); \ } // Indexつきvector(pair型Vector,(data,index)) #define vvv(type, name, h, w, ...) \ vector<vector<vector<type>>> name( \ h, vector<vector<type>>(w, vector<type>(__VA_ARGS__))) template <class T> auto min(const T &a) { return *min_element(all(a)); } template <class T> auto max(const T &a) { return *max_element(all(a)); } inline ll popcnt(ull a) { return __builtin_popcountll(a); } ll gcd(ll a, ll b) { while (b) { ll c = b; b = a % b; a = c; } return a; } ll lcm(ll a, ll b) { if (!a || !b) return 0; return a * b / gcd(a, b); } ll intpow(ll a, ll b) { ll ans = 1; while (b) { if (b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll modpow(ll a, ll b, ll p) { ll ans = 1; while (b) { if (b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; } template <class T, class U> bool chmin(T &a, const U &b) { if (a > b) { a = b; return 1; } return 0; } template <class T, class U> bool chmax(T &a, const U &b) { if (a < b) { a = b; return 1; } return 0; } vector<ll> iota(ll n) { vector<ll> a(n); iota(a.begin(), a.end(), 0); return a; } vector<pll> factor(ull x) { vector<pll> ans; for (ull i = 2; i * i <= x; i++) if (x % i == 0) { ans.push_back({i, 1}); while ((x /= i) % i == 0) ans.back().second++; } if (x != 1) ans.push_back({x, 1}); return ans; } map<ll, ll> factor_map(ull x) { map<ll, ll> ans; for (ull i = 2; i * i <= x; i++) if (x % i == 0) { ans[i] = 1; while ((x /= i) % i == 0) ans[i]++; } if (x != 1) ans[x] = 1; return ans; } vector<ll> divisor(ull x) { vector<ll> ans; for (ull i = 1; i * i <= x; i++) if (x % i == 0) ans.push_back(i); rrep(ans.size() - (ans.back() * ans.back() == x)) ans.push_back(x / ans[i]); return ans; } template <class T> unordered_map<T, ll> press(vector<T> &a) { auto b = a; sort(all(b)); b.erase(unique(all(b)), b.end()); unordered_map<T, ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } template <class T> map<T, ll> press_map(vector<T> &a) { auto b = a; sort(all(b)); b.erase(unique(all(b)), b.end()); map<T, ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } int scan() { return getchar(); } void scan(int &a) { scanf("%d", &a); } void scan(unsigned &a) { scanf("%u", &a); } void scan(long &a) { scanf("%ld", &a); } void scan(long long &a) { scanf("%lld", &a); } void scan(unsigned long long &a) { scanf("%llu", &a); } void scan(char &a) { do { a = getchar(); } while (a == ' ' || a == '\n'); } void scan(float &a) { scanf("%f", &a); } void scan(double &a) { scanf("%lf", &a); } void scan(long double &a) { scanf("%Lf", &a); } void scan(vector<bool> &a) { for (unsigned i = 0; i < a.size(); i++) { int b; scan(b); a[i] = b; } } void scan(char a[]) { scanf("%s", a); } void scan(string &a) { cin >> a; } template <class T> void scan(vector<T> &); template <class T, size_t size> void scan(array<T, size> &); template <class T, class L> void scan(pair<T, L> &); template <class T, size_t size> void scan(T (&)[size]); template <class T> void scan(vector<T> &a) { for (auto &&i : a) scan(i); } template <class T> void scan(deque<T> &a) { for (auto &&i : a) scan(i); } template <class T, size_t size> void scan(array<T, size> &a) { for (auto &&i : a) scan(i); } template <class T, class L> void scan(pair<T, L> &p) { scan(p.first); scan(p.second); } template <class T, size_t size> void scan(T (&a)[size]) { for (auto &&i : a) scan(i); } template <class T> void scan(T &a) { cin >> a; } void in() {} template <class Head, class... Tail> void in(Head &head, Tail &...tail) { scan(head); in(tail...); } void print() { putchar(' '); } void print(bool a) { printf("%d", a); } void print(int a) { printf("%d", a); } void print(unsigned a) { printf("%u", a); } void print(long a) { printf("%ld", a); } void print(long long a) { printf("%lld", a); } void print(unsigned long long a) { printf("%llu", a); } void print(char a) { printf("%c", a); } void print(char a[]) { printf("%s", a); } void print(const char a[]) { printf("%s", a); } void print(float a) { printf("%.15f", a); } void print(double a) { printf("%.15f", a); } void print(long double a) { printf("%.15Lf", a); } void print(const string &a) { for (auto &&i : a) print(i); } template <class T> void print(const vector<T> &); template <class T, size_t size> void print(const array<T, size> &); template <class T, class L> void print(const pair<T, L> &p); template <class T, size_t size> void print(const T (&)[size]); template <class T> void print(const vector<T> &a) { if (a.empty()) return; print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T> void print(const deque<T> &a) { if (a.empty()) return; print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T, size_t size> void print(const array<T, size> &a) { print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T, class L> void print(const pair<T, L> &p) { print(p.first); putchar(' '); print(p.second); } template <class T, size_t size> void print(const T (&a)[size]) { print(a[0]); for (auto i = a; ++i != end(a);) { putchar(' '); print(*i); } } template <class T> void print(const T &a) { cout << a; } int out() { putchar('\n'); return 0; } template <class T> int out(const T &t) { print(t); putchar('\n'); return 0; } // cout<<t<<endl template <class Head, class... Tail> int out(const Head &head, const Tail &...tail) { print(head); putchar(' '); out(tail...); return 0; } #ifdef DEBUG inline ll __lg(ull __n) { return sizeof(ull) * __CHAR_BIT__ - 1 - __builtin_clzll(__n); } #define debug(...) \ { \ print(#__VA_ARGS__); \ print(":"); \ out(__VA_ARGS__); \ } #else #define debug(...) void(0) #endif /*判定出力*/ int first(bool i = true) { return out(i ? "first" : "second"); } // iがfirstか判断,以下同様 int yes(bool i = true) { return out(i ? "yes" : "no"); } int Yes(bool i = true) { return out(i ? "Yes" : "No"); } int No() { return out("No"); } int YES(bool i = true) { return out(i ? "YES" : "NO"); } int NO() { return out("NO"); } int Yay(bool i = true) { return out(i ? "Yay!" : ":("); } int possible(bool i = true) { return out(i ? "possible" : "impossible"); } int Possible(bool i = true) { return out(i ? "Possible" : "Impossible"); } int POSSIBLE(bool i = true) { return out(i ? "POSSIBLE" : "IMPOSSIBLE"); } void Case(ll i) { printf("Case #%lld: ", i); } /*vector探索*/ #define bSearch(v, k) \ binary_search(all(v), k) // ソートされた配列vの中の要素にkがあるか(boolean) #define lowB(v, k) \ lower_bound(all(v), \ k) // ソートされた配列vの中の要素のうちk以上かつ最小のイテレータ #define DLbetB(v, k) lowB(v, k) - v.begin() // 先頭からの距離 #define DLbetE(v, k) v.end() - lowB(v, k) // 末尾からの距離 #define uppB(v, k) \ upper_bound( \ all(v), \ k) // ソートされた配列vの中の要素のうちkより大きいかつ最小のイテレータ #define DUbetB(v, k) uppB(v, k) - v.begin() // 先頭からの距離 #define DUbetE(v, k) v.end() - uppB(v, k) // 末尾からの距離 #define Cnt(v, k) count(all(v), k) // 配列vの中で要素kが何個あるかを返す(size_t) #define CntIf(v, l) \ count_if(all(v), \ l) // 配列vの中で条件式(lambda式)を満たす個数を返す(ex.int num = // count_if(v.begin(), v.end(), [](int i){return i % 3 == 0;});) #define Sort2D(myVec, i) \ sort(myVec.begin(), myVec.end(), \ [](const vector<ll> &alpha, const vector<ll> &beta) { \ return alpha[i] < beta[i]; \ }); // i列めでソート /*最大公約数*/ template <class T> T vgcd(T m, T n) { return gcd(m, n); } template <class T, class... Args> T vgcd(T a, Args... args) { return vgcd(a, vgcd(args...)); } /*階乗*/ ll facctorialMethod(ll k) { int sum = 1; for (ll i = 1; i <= k; ++i) { sum *= i; // sum%=MOD;//あまりを出力せよ問題の時はこれもやる } return sum; } /*組み合わせnCk*/ ll comb(const ll N, const ll K) { vector<vector<long long int>> v(N + 1, vector<long long int>(N + 1, 0)); for (int i = 0; i < v.size(); i++) { v[i][0] = 1; v[i][i] = 1; } for (int k = 1; k < v.size(); k++) { for (int j = 1; j < k; j++) { v[k][j] = (v[k - 1][j - 1] + v[k - 1][j]); } } return v[N][K]; } /*逆元 あまりの割り算をするときにこいつをかける*/ // mod. m での a の逆元 a^{-1} を計算する ll modinv(ll a, ll m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } /*ダブリング*/ /* 参考:http://satanic0258.hatenablog.com/entry/2017/02/23/222647 使える場所:1回遷移した先が明確にわかる時 目的: ・ある数XのQ乗を求める ・根付き木において、ある頂点vのQ個上の親を知る ・ある地点からQ回進んだ先を求める */ // int N; // 全体の要素数 // int Q;//試行回数 ll doubling( const ll N, const ll Q, vector<ll> a) { // cin>>N>>Q;//標準入力から要素数と試行回数を受け取る場合 ll LOG_Q = floor(log2(Q)) + 1; // next[k][i]で、i番目の要素の「2^k個次の要素」を指す // (なお、i番目の要素に対して「2^k個次の要素」が存在しないとき、 // next[k][i]が指し示す要素番号を-1とします) std::vector<std::vector<ll>> next(LOG_Q + 1, std::vector<ll>(N)); // ll a[N];//各要素の次の行き先 // next[0]を計算 for (int i = 0; i < N; ++i) { next[0][i] = a[i]; } // nextを計算 for (ll k = 0; k < LOG_Q; ++k) { for (int i = 0; i < N; ++i) { if (next[k][i] == -1) { // 2^k個次に要素が無い時、当然2^(k+1)個次にも要素はありません next[k + 1][i] = -1; } else { // 「2^k個次の要素」の2^k個次の要素は、2^(k+1)個次の要素です next[k + 1][i] = next[k][next[k][i]]; } } } // ----ここまで準備---- // p番目の要素の「Q個次の要素」を求めることを考えます ll p = 0; for (ll k = LOG_Q - 1; k >= 0; --k) { if (p == -1) { // pがすでに存在しない要素を指していたら、 // それ以降で存在する要素を指すことはないためループを抜けます break; } if ((Q >> k) & 1) { // ex(Q=5)5=101(2)であり,2^2+2^0回進むことを表す // Qを二進展開した際、k番目のビットが立っていたら、 // pの位置を2^kだけ次にずらします p = next[k][p]; } } return p; // ここでのpが最終的な答えになる } /*素数判定*/ bool IsPrime(ll num) { if (num < 2) return false; else if (num == 2) return true; else if (num % 2 == 0) return false; // 偶数はあらかじめ除く double sqrtNum = sqrt(num); for (int i = 3; i <= sqrtNum; i += 2) { if (num % i == 0) { // 素数ではない return false; } } // 素数である return true; } /*ページのソースを表示->command+F->問題文 で問題文コピペする */ // deque<ll> deq;//両端キュー使う,先頭と末尾へのアクセスが早い // using std::map; // map<string,ll>memo;//<キー,その要素>,キーの検索が早い,キーは昇順にソートされる signed main() { /*以下コード*/ LL(k); ll ans = -1; ll num = 7; rep(LINF) { if (k % 2 == 0) break; if (num % k == 0) { ans = i + 1; break; } num = (num * 10 + 7) % k; } out(ans); }
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using uint = unsigned; using pcc = pair<char, char>; using pii = pair<int, int>; using pll = pair<ll, ll>; using pdd = pair<double, double>; using tuplis = array<ll, 3>; template <class T> using pq = priority_queue<T, vector<T>, greater<T>>; const ll LINF = 0x1fffffffffffffff; const ll MINF = 0x7fffffffffff; const int INF = 0x3fffffff; const int MOD = 1000000007; const int MODD = 998244353; const ld DINF = numeric_limits<ld>::infinity(); const ld EPS = 1e-9; const ld PI = 3.1415926535897932; const ll dx[] = {0, 1, 0, -1, 1, -1, 1, -1}; const ll dy[] = {1, 0, -1, 0, 1, 1, -1, -1}; #define overload4(_1, _2, _3, _4, name, ...) name #define overload3(_1, _2, _3, name, ...) name /*繰り返し*/ #define rep1(n) for (ll i = 0; i < n; ++i) // n回repeat #define rep2(i, n) for (ll i = 0; i < n; ++i) // n回repeat(変数指定) #define rep3(i, a, b) for (ll i = a; i < b; ++i) // a-bまでrepeat #define rep4(i, a, b, c) \ for (ll i = a; i < b; i += c) // a-bまで公差cでrepeat(等差数列で使えそう) #define rep(...) \ overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__) // repeatまとめ #define rrep1(n) for (ll i = (n); i--;) #define rrep2(i, n) for (ll i = (n); i--;) #define rrep3(i, a, b) for (ll i = (b); i-- > (a);) #define rrep4(i, a, b, c) for (ll i = a + (b - a - 1) / c * c; i >= a; i -= c) #define rrep(...) \ overload4(__VA_ARGS__, rrep4, rrep3, rrep2, \ rrep1)(__VA_ARGS__) // 逆repeatまとめ #define each1(i, a) for (auto &&i : a) #define each2(x, y, a) for (auto &&[x, y] : a) #define each3(x, y, z, a) for (auto &&[x, y, z] : a) #define each(...) \ overload4(__VA_ARGS__, each3, each2, \ each1)(__VA_ARGS__) // 配列の各要素の読み出し #define all1(i) begin(i), end(i) #define all2(i, a) begin(i), begin(i) + a #define all3(i, a, b) begin(i) + a, begin(i) + b #define all(...) \ overload3(__VA_ARGS__, all3, all2, \ all1)(__VA_ARGS__) // vectorの始めと終わりの読み取り #define rall1(i) (i).rbegin(), (i).rend() #define rall2(i, k) (i).rbegin(), (i).rbegin() + k #define rall3(i, a, b) (i).rbegin() + a, (i).rbegin() + b #define rall(...) \ overload3(__VA_ARGS__, rall3, rall2, \ rall1)(__VA_ARGS__) // 逆イテレータの取得(rbegin:末尾,rend:頭) #define sum(...) \ accumulate( \ all(__VA_ARGS__), \ 0LL) // vectorの合計(int形で受け付けてしまうので,小数で扱いたい場合はdsumを使う) #define dsum(...) \ accumulate(all(__VA_ARGS__), 0.0L) // 小数で扱う(long long doubleなど) #define elif else if #define unless(a) if (!(a)) #define mp make_pair #define mt make_tuple /*標準入力*/ #define INT(...) \ int __VA_ARGS__; \ in(__VA_ARGS__) // int型標準入力受付,以下LDまで同様 #define LL(...) \ ll __VA_ARGS__; \ in(__VA_ARGS__) #define ULL(...) \ ull __VA_ARGS__; \ in(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ in(__VA_ARGS__) #define CHR(...) \ char __VA_ARGS__; \ in(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ in(__VA_ARGS__) #define LD(...) \ ld __VA_ARGS__; \ in(__VA_ARGS__) /*vector操作*/ #define Sort(a) sort(all(a)) // 昇順ソート #define RSort(vec) sort(vec.begin(), vec.end(), greater<ll>()) // 降順ソート #define Rev(a) reverse(all(a)) // 逆順 #define Uniq(a) \ sort(all(a)); \ a.erase(unique(all(a)), end(a)) #define vec(type, name, ...) vector<type> name(__VA_ARGS__) // type型vectorの定義 #define VEC(type, name, size) \ vector<type> name(size); \ in(name) // type型vector(size指定)標準入力受付 #define vv(type, name, h, ...) \ vector<vector<type>> name(h, vector<type>(__VA_ARGS__)) #define VV(type, name, h, w) \ vector<vector<type>> name(h, vector<type>(w)); \ in(name) #define IV(type, name, size) \ vector<pair<int, int>> name; \ for (int i = 0; i < size; i++) { \ int a_i; \ cin >> a_i; \ name.emplace_back(a_i, i); \ } // Indexつきvector(pair型Vector,(data,index)) #define vvv(type, name, h, w, ...) \ vector<vector<vector<type>>> name( \ h, vector<vector<type>>(w, vector<type>(__VA_ARGS__))) template <class T> auto min(const T &a) { return *min_element(all(a)); } template <class T> auto max(const T &a) { return *max_element(all(a)); } inline ll popcnt(ull a) { return __builtin_popcountll(a); } ll gcd(ll a, ll b) { while (b) { ll c = b; b = a % b; a = c; } return a; } ll lcm(ll a, ll b) { if (!a || !b) return 0; return a * b / gcd(a, b); } ll intpow(ll a, ll b) { ll ans = 1; while (b) { if (b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll modpow(ll a, ll b, ll p) { ll ans = 1; while (b) { if (b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; } template <class T, class U> bool chmin(T &a, const U &b) { if (a > b) { a = b; return 1; } return 0; } template <class T, class U> bool chmax(T &a, const U &b) { if (a < b) { a = b; return 1; } return 0; } vector<ll> iota(ll n) { vector<ll> a(n); iota(a.begin(), a.end(), 0); return a; } vector<pll> factor(ull x) { vector<pll> ans; for (ull i = 2; i * i <= x; i++) if (x % i == 0) { ans.push_back({i, 1}); while ((x /= i) % i == 0) ans.back().second++; } if (x != 1) ans.push_back({x, 1}); return ans; } map<ll, ll> factor_map(ull x) { map<ll, ll> ans; for (ull i = 2; i * i <= x; i++) if (x % i == 0) { ans[i] = 1; while ((x /= i) % i == 0) ans[i]++; } if (x != 1) ans[x] = 1; return ans; } vector<ll> divisor(ull x) { vector<ll> ans; for (ull i = 1; i * i <= x; i++) if (x % i == 0) ans.push_back(i); rrep(ans.size() - (ans.back() * ans.back() == x)) ans.push_back(x / ans[i]); return ans; } template <class T> unordered_map<T, ll> press(vector<T> &a) { auto b = a; sort(all(b)); b.erase(unique(all(b)), b.end()); unordered_map<T, ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } template <class T> map<T, ll> press_map(vector<T> &a) { auto b = a; sort(all(b)); b.erase(unique(all(b)), b.end()); map<T, ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } int scan() { return getchar(); } void scan(int &a) { scanf("%d", &a); } void scan(unsigned &a) { scanf("%u", &a); } void scan(long &a) { scanf("%ld", &a); } void scan(long long &a) { scanf("%lld", &a); } void scan(unsigned long long &a) { scanf("%llu", &a); } void scan(char &a) { do { a = getchar(); } while (a == ' ' || a == '\n'); } void scan(float &a) { scanf("%f", &a); } void scan(double &a) { scanf("%lf", &a); } void scan(long double &a) { scanf("%Lf", &a); } void scan(vector<bool> &a) { for (unsigned i = 0; i < a.size(); i++) { int b; scan(b); a[i] = b; } } void scan(char a[]) { scanf("%s", a); } void scan(string &a) { cin >> a; } template <class T> void scan(vector<T> &); template <class T, size_t size> void scan(array<T, size> &); template <class T, class L> void scan(pair<T, L> &); template <class T, size_t size> void scan(T (&)[size]); template <class T> void scan(vector<T> &a) { for (auto &&i : a) scan(i); } template <class T> void scan(deque<T> &a) { for (auto &&i : a) scan(i); } template <class T, size_t size> void scan(array<T, size> &a) { for (auto &&i : a) scan(i); } template <class T, class L> void scan(pair<T, L> &p) { scan(p.first); scan(p.second); } template <class T, size_t size> void scan(T (&a)[size]) { for (auto &&i : a) scan(i); } template <class T> void scan(T &a) { cin >> a; } void in() {} template <class Head, class... Tail> void in(Head &head, Tail &...tail) { scan(head); in(tail...); } void print() { putchar(' '); } void print(bool a) { printf("%d", a); } void print(int a) { printf("%d", a); } void print(unsigned a) { printf("%u", a); } void print(long a) { printf("%ld", a); } void print(long long a) { printf("%lld", a); } void print(unsigned long long a) { printf("%llu", a); } void print(char a) { printf("%c", a); } void print(char a[]) { printf("%s", a); } void print(const char a[]) { printf("%s", a); } void print(float a) { printf("%.15f", a); } void print(double a) { printf("%.15f", a); } void print(long double a) { printf("%.15Lf", a); } void print(const string &a) { for (auto &&i : a) print(i); } template <class T> void print(const vector<T> &); template <class T, size_t size> void print(const array<T, size> &); template <class T, class L> void print(const pair<T, L> &p); template <class T, size_t size> void print(const T (&)[size]); template <class T> void print(const vector<T> &a) { if (a.empty()) return; print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T> void print(const deque<T> &a) { if (a.empty()) return; print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T, size_t size> void print(const array<T, size> &a) { print(a[0]); for (auto i = a.begin(); ++i != a.end();) { putchar(' '); print(*i); } } template <class T, class L> void print(const pair<T, L> &p) { print(p.first); putchar(' '); print(p.second); } template <class T, size_t size> void print(const T (&a)[size]) { print(a[0]); for (auto i = a; ++i != end(a);) { putchar(' '); print(*i); } } template <class T> void print(const T &a) { cout << a; } int out() { putchar('\n'); return 0; } template <class T> int out(const T &t) { print(t); putchar('\n'); return 0; } // cout<<t<<endl template <class Head, class... Tail> int out(const Head &head, const Tail &...tail) { print(head); putchar(' '); out(tail...); return 0; } #ifdef DEBUG inline ll __lg(ull __n) { return sizeof(ull) * __CHAR_BIT__ - 1 - __builtin_clzll(__n); } #define debug(...) \ { \ print(#__VA_ARGS__); \ print(":"); \ out(__VA_ARGS__); \ } #else #define debug(...) void(0) #endif /*判定出力*/ int first(bool i = true) { return out(i ? "first" : "second"); } // iがfirstか判断,以下同様 int yes(bool i = true) { return out(i ? "yes" : "no"); } int Yes(bool i = true) { return out(i ? "Yes" : "No"); } int No() { return out("No"); } int YES(bool i = true) { return out(i ? "YES" : "NO"); } int NO() { return out("NO"); } int Yay(bool i = true) { return out(i ? "Yay!" : ":("); } int possible(bool i = true) { return out(i ? "possible" : "impossible"); } int Possible(bool i = true) { return out(i ? "Possible" : "Impossible"); } int POSSIBLE(bool i = true) { return out(i ? "POSSIBLE" : "IMPOSSIBLE"); } void Case(ll i) { printf("Case #%lld: ", i); } /*vector探索*/ #define bSearch(v, k) \ binary_search(all(v), k) // ソートされた配列vの中の要素にkがあるか(boolean) #define lowB(v, k) \ lower_bound(all(v), \ k) // ソートされた配列vの中の要素のうちk以上かつ最小のイテレータ #define DLbetB(v, k) lowB(v, k) - v.begin() // 先頭からの距離 #define DLbetE(v, k) v.end() - lowB(v, k) // 末尾からの距離 #define uppB(v, k) \ upper_bound( \ all(v), \ k) // ソートされた配列vの中の要素のうちkより大きいかつ最小のイテレータ #define DUbetB(v, k) uppB(v, k) - v.begin() // 先頭からの距離 #define DUbetE(v, k) v.end() - uppB(v, k) // 末尾からの距離 #define Cnt(v, k) count(all(v), k) // 配列vの中で要素kが何個あるかを返す(size_t) #define CntIf(v, l) \ count_if(all(v), \ l) // 配列vの中で条件式(lambda式)を満たす個数を返す(ex.int num = // count_if(v.begin(), v.end(), [](int i){return i % 3 == 0;});) #define Sort2D(myVec, i) \ sort(myVec.begin(), myVec.end(), \ [](const vector<ll> &alpha, const vector<ll> &beta) { \ return alpha[i] < beta[i]; \ }); // i列めでソート /*最大公約数*/ template <class T> T vgcd(T m, T n) { return gcd(m, n); } template <class T, class... Args> T vgcd(T a, Args... args) { return vgcd(a, vgcd(args...)); } /*階乗*/ ll facctorialMethod(ll k) { int sum = 1; for (ll i = 1; i <= k; ++i) { sum *= i; // sum%=MOD;//あまりを出力せよ問題の時はこれもやる } return sum; } /*組み合わせnCk*/ ll comb(const ll N, const ll K) { vector<vector<long long int>> v(N + 1, vector<long long int>(N + 1, 0)); for (int i = 0; i < v.size(); i++) { v[i][0] = 1; v[i][i] = 1; } for (int k = 1; k < v.size(); k++) { for (int j = 1; j < k; j++) { v[k][j] = (v[k - 1][j - 1] + v[k - 1][j]); } } return v[N][K]; } /*逆元 あまりの割り算をするときにこいつをかける*/ // mod. m での a の逆元 a^{-1} を計算する ll modinv(ll a, ll m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } /*ダブリング*/ /* 参考:http://satanic0258.hatenablog.com/entry/2017/02/23/222647 使える場所:1回遷移した先が明確にわかる時 目的: ・ある数XのQ乗を求める ・根付き木において、ある頂点vのQ個上の親を知る ・ある地点からQ回進んだ先を求める */ // int N; // 全体の要素数 // int Q;//試行回数 ll doubling( const ll N, const ll Q, vector<ll> a) { // cin>>N>>Q;//標準入力から要素数と試行回数を受け取る場合 ll LOG_Q = floor(log2(Q)) + 1; // next[k][i]で、i番目の要素の「2^k個次の要素」を指す // (なお、i番目の要素に対して「2^k個次の要素」が存在しないとき、 // next[k][i]が指し示す要素番号を-1とします) std::vector<std::vector<ll>> next(LOG_Q + 1, std::vector<ll>(N)); // ll a[N];//各要素の次の行き先 // next[0]を計算 for (int i = 0; i < N; ++i) { next[0][i] = a[i]; } // nextを計算 for (ll k = 0; k < LOG_Q; ++k) { for (int i = 0; i < N; ++i) { if (next[k][i] == -1) { // 2^k個次に要素が無い時、当然2^(k+1)個次にも要素はありません next[k + 1][i] = -1; } else { // 「2^k個次の要素」の2^k個次の要素は、2^(k+1)個次の要素です next[k + 1][i] = next[k][next[k][i]]; } } } // ----ここまで準備---- // p番目の要素の「Q個次の要素」を求めることを考えます ll p = 0; for (ll k = LOG_Q - 1; k >= 0; --k) { if (p == -1) { // pがすでに存在しない要素を指していたら、 // それ以降で存在する要素を指すことはないためループを抜けます break; } if ((Q >> k) & 1) { // ex(Q=5)5=101(2)であり,2^2+2^0回進むことを表す // Qを二進展開した際、k番目のビットが立っていたら、 // pの位置を2^kだけ次にずらします p = next[k][p]; } } return p; // ここでのpが最終的な答えになる } /*素数判定*/ bool IsPrime(ll num) { if (num < 2) return false; else if (num == 2) return true; else if (num % 2 == 0) return false; // 偶数はあらかじめ除く double sqrtNum = sqrt(num); for (int i = 3; i <= sqrtNum; i += 2) { if (num % i == 0) { // 素数ではない return false; } } // 素数である return true; } /*ページのソースを表示->command+F->問題文 で問題文コピペする */ // deque<ll> deq;//両端キュー使う,先頭と末尾へのアクセスが早い // using std::map; // map<string,ll>memo;//<キー,その要素>,キーの検索が早い,キーは昇順にソートされる signed main() { /*以下コード*/ LL(k); ll ans = -1; ll num = 7; rep(1000001) { if (k % 2 == 0) break; if (num % k == 0) { ans = i + 1; break; } num = (num * 10 + 7) % k; } out(ans); }
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TLE
p02596
C++
Time Limit Exceeded
#include <fstream> #include <iostream> using namespace std; int const NMAX = 1e6; bool freq[1 + NMAX]; int main() { int n, m = 0, ans = 0; cin >> n; while (freq[m] == false) { m = (m * 10 + 7) % n; ans++; if (m == 0) { cout << ans; return 0; } } cout << -1; return 0; }
#include <fstream> #include <iostream> using namespace std; int const NMAX = 1e6; bool freq[1 + NMAX]; int main() { int n, m = 0, ans = 0; cin >> n; while (freq[m] == false) { freq[m] = true; m = (m * 10 + 7) % n; ans++; if (m == 0) { cout << ans; return 0; } } cout << -1; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <algorithm> #include <bitset> #include <cmath> #include <iostream> #include <list> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <stack> #include <stdio.h> #include <string> #include <tuple> #include <vector> //  ceil(a/b) (a + (b - 1))/ b using namespace std; #define rep(i, n) for (int i = 0; i < (n); i++) typedef long long ll; typedef pair<int, int> P; const int inf = 1000000007; const ll mod = 1000000007; const double PI = 3.14159265358979323846; int dx[] = {1, -1, 0, 0}; int dy[] = {0, 0, 1, -1}; ll gcd(ll a, ll b) { if (b == 0) return a; else return gcd(b, a % b); } int cans(bool f) { if (f) cout << "Yes" << endl; else cout << "No" << endl; return 0; } int main() { ll ans = 1; ll K; cin >> K; vector<bool> seen(K, false); ll mod = 7 % K; if (K % 2 == 0) { cout << -1 << endl; return 0; } while (1) { if (mod == 0) { cout << ans << endl; return 0; } else { seen[mod] = true; mod = mod * 10 + 7; mod %= K; ans++; } // cout << mod << endl; } return 0; }
#include <algorithm> #include <bitset> #include <cmath> #include <iostream> #include <list> #include <map> #include <math.h> #include <numeric> #include <queue> #include <set> #include <stack> #include <stdio.h> #include <string> #include <tuple> #include <vector> //  ceil(a/b) (a + (b - 1))/ b using namespace std; #define rep(i, n) for (int i = 0; i < (n); i++) typedef long long ll; typedef pair<int, int> P; const int inf = 1000000007; const ll mod = 1000000007; const double PI = 3.14159265358979323846; int dx[] = {1, -1, 0, 0}; int dy[] = {0, 0, 1, -1}; ll gcd(ll a, ll b) { if (b == 0) return a; else return gcd(b, a % b); } int cans(bool f) { if (f) cout << "Yes" << endl; else cout << "No" << endl; return 0; } int main() { ll ans = 1; ll K; cin >> K; vector<bool> seen(K, false); ll mod = 7 % K; if (K % 2 == 0 || K % 5 == 0) { cout << -1 << endl; return 0; } while (1) { if (mod == 0) { cout << ans << endl; return 0; } else { seen[mod] = true; mod = mod * 10 + 7; mod %= K; ans++; } // cout << mod << endl; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define _GLIBCXX_DEBUG using namespace std; using ll = long long; int main() { int k; cin >> k; if (k % 2 == 0) { cout << "-1" << endl; return 0; } int ans = 1, mod = 7 % k; while (true) { if (mod == 0) { cout << ans << endl; return 0; } mod = (mod * 10 + 7) % k; ans++; } }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define _GLIBCXX_DEBUG using namespace std; using ll = long long; int main() { int k; cin >> k; if (k % 2 == 0) { cout << "-1" << endl; return 0; } int ans = 1, mod = 7 % k; while (true) { if (mod == 0) { cout << ans << endl; return 0; } mod = (mod * 10 + 7) % k; ans++; if (ans > k) { cout << "-1" << endl; return 0; } } }
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TLE
p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long lol; // マクロ // forループ関係 // 引数は、(ループ内変数,動く範囲)か(ループ内変数,始めの数,終わりの数)、のどちらか // Dがついてないものはループ変数は1ずつインクリメントされ、Dがついてるものはループ変数は1ずつデクリメントされる #define REP(i, n) for (lol i = 0; i < lol(n); i++) #define REPD(i, n) for (lol i = n - 1; i >= 0; i--) #define FOR(i, a, b) for (lol i = a; i <= lol(b); i++) #define FORD(i, a, b) for (lol i = a; i >= lol(b); i--) // xにはvectorなどのコンテナ #define ALL(x) x.begin(), x.end() // sortなどの引数を省略したい #define SIZE(x) lol(x.size()) // sizeをsize_tからllに直しておく // 定数 #define PI 3.1415926535897932385 // pi #define INF 1000000000000 // 10^12:極めて大きい値,∞ #define MOD 1000000007 // 10^9+7:合同式の法 #define MAXR 100000 // 10^5:配列の最大のrange(素数列挙などで使用) // 最大値最小値 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 gcd(int a, int b) { return b ? gcd(b, a % b) : a; } int main() { lol result{0}; lol k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 1; } lol l; if (k % 7 == 0) l = 9 * k / 7; else { l = 9 * k; } lol re{1}; while (true) { re = (10 * re) % l; result++; // cout << re << endl; if (re == 1) break; } cout << result << endl; return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long lol; // マクロ // forループ関係 // 引数は、(ループ内変数,動く範囲)か(ループ内変数,始めの数,終わりの数)、のどちらか // Dがついてないものはループ変数は1ずつインクリメントされ、Dがついてるものはループ変数は1ずつデクリメントされる #define REP(i, n) for (lol i = 0; i < lol(n); i++) #define REPD(i, n) for (lol i = n - 1; i >= 0; i--) #define FOR(i, a, b) for (lol i = a; i <= lol(b); i++) #define FORD(i, a, b) for (lol i = a; i >= lol(b); i--) // xにはvectorなどのコンテナ #define ALL(x) x.begin(), x.end() // sortなどの引数を省略したい #define SIZE(x) lol(x.size()) // sizeをsize_tからllに直しておく // 定数 #define PI 3.1415926535897932385 // pi #define INF 1000000000000 // 10^12:極めて大きい値,∞ #define MOD 1000000007 // 10^9+7:合同式の法 #define MAXR 100000 // 10^5:配列の最大のrange(素数列挙などで使用) // 最大値最小値 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 gcd(int a, int b) { return b ? gcd(b, a % b) : a; } int main() { lol result{0}; lol k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { result = -1; } else { lol l; if (k % 7 == 0) l = 9 * k / 7; else { l = 9 * k; } lol re{1}; while (true) { re = (10 * re) % l; result++; // cout << re << endl; if (re == 1) break; } } cout << result << endl; return 0; }
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0
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> // Common file #include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update using namespace std; typedef long long int ll; using namespace __gnu_pbds; typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; #define MOD 1000000007 #define f first #define s second #define mp make_pair #define pb push_back #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); //*s.find_by_order(p) returns the value of pth largest starting from 0 // s.order_of_key(p) returns no. of items that are strictly < p // string bin = bitset<64>(m).to_string(); convert decimal m to binary int main() { fast; ll t; t = 1; while (t--) { ll k, a, p; cin >> k; if (k == 1) { cout << "1\n"; continue; } if (k % 2 == 0) { cout << "-1\n"; continue; } a = 7; p = 1; while (1) { a = a % k; if (a == 0) { cout << p << "\n"; break; } p++; a = 10 * a + 7; // if(p>100000){break;} } } }
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> // Common file #include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update using namespace std; typedef long long int ll; using namespace __gnu_pbds; typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; #define MOD 1000000007 #define f first #define s second #define mp make_pair #define pb push_back #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); //*s.find_by_order(p) returns the value of pth largest starting from 0 // s.order_of_key(p) returns no. of items that are strictly < p // string bin = bitset<64>(m).to_string(); convert decimal m to binary int main() { fast; ll t; t = 1; while (t--) { ll k, a, p; cin >> k; if (k == 1) { cout << "1\n"; continue; } if (k % 2 == 0 || k % 5 == 0) { cout << "-1\n"; continue; } a = 7; p = 1; while (1) { a = a % k; if (a == 0) { cout << p << "\n"; break; } p++; a = 10 * a + 7; // if(p>100000){break;} } } }
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TLE
p02596
Python
Runtime Error
k = int(input()) if k % 7 == 0: L = 9 * k / 7 else: L = 9 * k out = -1 s = 10 for i in range(L): if s % L == 1: out = i + 1 break else: s = (s % L) * 10 print(out)
k = int(input()) if k % 7 == 0: L = 9 * k // 7 else: L = 9 * k out = -1 s = 10 for i in range(L): if s % L == 1: out = i + 1 break else: s = (s % L) * 10 print(out)
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0
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define int long long #define pb push_back // #define mp make_pair #define pii pair<int, int> #define vec vector<int> #define mii map<int, int> #define pqb priority_queue<int> #define inf 1e18 #define ps(x, y) fixed << setprecision(y) << x #define no_of_test(x) \ int x; \ cin >> x; \ while (x--) const int mod = 1e9 + 7; void very_fast() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif } int gcd(int a, int b) { if (b == 0) return a; return gcd(b, a % b); } int binary_exponentation(int a, int b) { int ret = 1; while (b) { if (b & 1) ret = (ret * a) % mod; b >>= 1; a = (a * a) % mod; } return ret; } int32_t main() { very_fast(); // no_of_test(x) { int n; cin >> n; if (n % 2 == 0) { cout << -1 << endl; return 0; } int m = 0; for (int i = 1; 1 <= 1e7; i++) { m = (m * 10 + 7) % n; if (m == 0) { cout << i << endl; return 0; // break; } } cout << -1 << endl; return 0; } return 0; }
#include <bits/stdc++.h> using namespace std; #define int long long #define pb push_back // #define mp make_pair #define pii pair<int, int> #define vec vector<int> #define mii map<int, int> #define pqb priority_queue<int> #define inf 1e18 #define ps(x, y) fixed << setprecision(y) << x #define no_of_test(x) \ int x; \ cin >> x; \ while (x--) const int mod = 1e9 + 7; void very_fast() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif } int gcd(int a, int b) { if (b == 0) return a; return gcd(b, a % b); } int binary_exponentation(int a, int b) { int ret = 1; while (b) { if (b & 1) ret = (ret * a) % mod; b >>= 1; a = (a * a) % mod; } return ret; } int32_t main() { very_fast(); // no_of_test(x) { int n; cin >> n; if (n % 2 == 0) { cout << -1 << endl; return 0; } int m = 0; for (int i = 1; i <= 1e7; i++) { m = (m * 10 + 7) % n; if (m == 0) { cout << i << endl; return 0; // break; } } cout << -1 << endl; return 0; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#pragma GCC target("avx") #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #define _USE_MATH_DEFINES #include <algorithm> #include <bitset> #include <cassert> #include <climits> #include <cmath> #include <complex> #include <cstdio> #include <cstring> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <list> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <time.h> #include <tuple> #include <unordered_map> #include <vector> using namespace std; using ll = long long; using ld = long double; #define int long long #define all(a) (a).begin(), (a).end() #define fs first #define sc second #define xx first #define yy second.first #define zz second.second #define H pair<int, int> #define P pair<int, pair<int, int>> #define Q(i, j, k) mkp(i, mkp(j, k)) #define rng(i, s, n) for (int i = (s); i < (n); i++) #define rep(i, n) rng(i, 0, (n)) #define mkp make_pair #define vec vector #define vi vec<int> #define pb emplace_back #define siz(a) (int)(a).size() #define crdcomp(b) \ sort(all((b))); \ (b).erase(unique(all((b))), (b).end()) #define getidx(b, i) (lower_bound(all(b), (i)) - (b).begin()) #define ssp(i, n) (i == (int)(n)-1 ? "\n" : " ") #define ctoi(c) (int)(c - '0') #define itoc(c) (char)(c + '0') #define cyes printf("Yes\n") #define cno printf("No\n") #define cdf(n) \ int quetimes_ = (n); \ rep(qq123_, quetimes_) #define gcj printf("Case #%lld: ", qq123_ + 1) #define readv(a, n) \ a.resize(n, 0); \ rep(i, (n)) a[i] = read() #define found(a, x) (a.find(x) != a.end()) // #define endl "\n" constexpr int mod = (ll)1e9 + 7; constexpr int Mod = 998244353; constexpr ld EPS = 1e-10; constexpr ll inf = (ll)3 * 1e18; constexpr int Inf = (ll)15 * 1e8; constexpr int dx[] = {-1, 1, 0, 0}, dy[] = {0, 0, -1, 1}; 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; } ll read() { ll u, k = scanf("%lld", &u); return u; } string reads() { string s; cin >> s; return s; } H readh(short g = 0) { H u; int k = scanf("%lld %lld", &u.fs, &u.sc); if (g == 1) u.fs--, u.sc--; if (g == 2) u.fs--; return u; } bool ina(H t, int h, int w) { return 0 <= t.fs && t.fs < h && 0 <= t.sc && t.sc < w; } bool ina(int t, int l, int r) { return l <= t && t < r; } ll gcd(ll i, ll j) { return j ? gcd(j, i % j) : i; } ll popcount(ll x) { int sum = 0; for (int i = 0; i < 60; i++) if ((1ll << i) & x) sum++; return sum; } template <typename T> class csum { vec<T> v; public: csum(vec<T> &a) : v(a) { build(); } csum() {} void init(vec<T> &a) { v = a; build(); } void build() { for (int i = 1; i < v.size(); i++) v[i] += v[i - 1]; } T a(int l, int r) { if (r < l) return 0; return v[r] - (l == 0 ? 0 : v[l - 1]); } //[l,r] T b(int l, int r) { return a(l, r - 1); } //[l,r) T a(pair<int, int> t) { return a(t.first, t.second); } T b(pair<int, int> t) { return b(t.first, t.second); } }; class mint { public: ll v; mint(ll v = 0) { s(v % mod + mod); } constexpr static int mod = (ll)1e9 + 7; constexpr static int fn_ = (ll)2e6 + 5; static mint fact[fn_], comp[fn_]; mint pow(int x) const { mint b(v), c(1); while (x) { if (x & 1) c *= b; b *= b; x >>= 1; } return c; } inline mint &s(int vv) { v = vv < mod ? vv : vv - mod; return *this; } inline mint inv() const { return pow(mod - 2); } inline mint operator-() const { return mint() - *this; } inline mint &operator+=(const mint b) { return s(v + b.v); } inline mint &operator-=(const mint b) { return s(v + mod - b.v); } inline mint &operator*=(const mint b) { v = v * b.v % mod; return *this; } inline mint &operator/=(const mint b) { v = v * b.inv().v % mod; return *this; } inline mint operator+(const mint b) const { return mint(v) += b; } inline mint operator-(const mint b) const { return mint(v) -= b; } inline mint operator*(const mint b) const { return mint(v) *= b; } inline mint operator/(const mint b) const { return mint(v) /= b; } friend ostream &operator<<(ostream &os, const mint &m) { return os << m.v; } friend istream &operator>>(istream &is, mint &m) { int x; is >> x; m = mint(x); return is; } bool operator<(const mint &r) const { return v < r.v; } bool operator>(const mint &r) const { return v > r.v; } bool operator<=(const mint &r) const { return v <= r.v; } bool operator>=(const mint &r) const { return v >= r.v; } bool operator==(const mint &r) const { return v == r.v; } bool operator!=(const mint &r) const { return v != r.v; } explicit operator bool() const { return v; } explicit operator int() const { return v; } mint comb(mint k) { if (k > *this) return mint(); if (!fact[0]) combinit(); if (v >= fn_) { if (k > *this - k) k = *this - k; mint tmp(1); for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i); return tmp * comp[k.v]; } return fact[v] * comp[k.v] * comp[v - k.v]; } // nCk mint perm(mint k) { if (k > *this) return mint(); if (!fact[0]) combinit(); if (v >= fn_) { mint tmp(1); for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i); return tmp; } return fact[v] * comp[v - k.v]; } // nPk static void combinit() { fact[0] = 1; for (int i = 1; i < fn_; i++) fact[i] = fact[i - 1] * mint(i); comp[fn_ - 1] = fact[fn_ - 1].inv(); for (int i = fn_ - 2; i >= 0; i--) comp[i] = comp[i + 1] * mint(i + 1); } }; mint mint::fact[fn_], mint::comp[fn_]; //-------------------------------------------------------------- //--------------------------------------------------------------------- signed main() { int k = read(); if (k % 2 == 0) { cout << -1 << endl; return 0; } int sum = 0, r = 1; for (int i = 1; i < 100000000; i++) { (sum += (r * 7) % k) %= k; ; if (sum == 0) { cout << i << endl; return 0; } (r *= 10) %= k; } cout << -1 << endl; }
#pragma GCC target("avx") #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #define _USE_MATH_DEFINES #include <algorithm> #include <bitset> #include <cassert> #include <climits> #include <cmath> #include <complex> #include <cstdio> #include <cstring> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <list> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <time.h> #include <tuple> #include <unordered_map> #include <vector> using namespace std; using ll = long long; using ld = long double; #define int long long #define all(a) (a).begin(), (a).end() #define fs first #define sc second #define xx first #define yy second.first #define zz second.second #define H pair<int, int> #define P pair<int, pair<int, int>> #define Q(i, j, k) mkp(i, mkp(j, k)) #define rng(i, s, n) for (int i = (s); i < (n); i++) #define rep(i, n) rng(i, 0, (n)) #define mkp make_pair #define vec vector #define vi vec<int> #define pb emplace_back #define siz(a) (int)(a).size() #define crdcomp(b) \ sort(all((b))); \ (b).erase(unique(all((b))), (b).end()) #define getidx(b, i) (lower_bound(all(b), (i)) - (b).begin()) #define ssp(i, n) (i == (int)(n)-1 ? "\n" : " ") #define ctoi(c) (int)(c - '0') #define itoc(c) (char)(c + '0') #define cyes printf("Yes\n") #define cno printf("No\n") #define cdf(n) \ int quetimes_ = (n); \ rep(qq123_, quetimes_) #define gcj printf("Case #%lld: ", qq123_ + 1) #define readv(a, n) \ a.resize(n, 0); \ rep(i, (n)) a[i] = read() #define found(a, x) (a.find(x) != a.end()) // #define endl "\n" constexpr int mod = (ll)1e9 + 7; constexpr int Mod = 998244353; constexpr ld EPS = 1e-10; constexpr ll inf = (ll)3 * 1e18; constexpr int Inf = (ll)15 * 1e8; constexpr int dx[] = {-1, 1, 0, 0}, dy[] = {0, 0, -1, 1}; 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; } ll read() { ll u, k = scanf("%lld", &u); return u; } string reads() { string s; cin >> s; return s; } H readh(short g = 0) { H u; int k = scanf("%lld %lld", &u.fs, &u.sc); if (g == 1) u.fs--, u.sc--; if (g == 2) u.fs--; return u; } bool ina(H t, int h, int w) { return 0 <= t.fs && t.fs < h && 0 <= t.sc && t.sc < w; } bool ina(int t, int l, int r) { return l <= t && t < r; } ll gcd(ll i, ll j) { return j ? gcd(j, i % j) : i; } ll popcount(ll x) { int sum = 0; for (int i = 0; i < 60; i++) if ((1ll << i) & x) sum++; return sum; } template <typename T> class csum { vec<T> v; public: csum(vec<T> &a) : v(a) { build(); } csum() {} void init(vec<T> &a) { v = a; build(); } void build() { for (int i = 1; i < v.size(); i++) v[i] += v[i - 1]; } T a(int l, int r) { if (r < l) return 0; return v[r] - (l == 0 ? 0 : v[l - 1]); } //[l,r] T b(int l, int r) { return a(l, r - 1); } //[l,r) T a(pair<int, int> t) { return a(t.first, t.second); } T b(pair<int, int> t) { return b(t.first, t.second); } }; class mint { public: ll v; mint(ll v = 0) { s(v % mod + mod); } constexpr static int mod = (ll)1e9 + 7; constexpr static int fn_ = (ll)2e6 + 5; static mint fact[fn_], comp[fn_]; mint pow(int x) const { mint b(v), c(1); while (x) { if (x & 1) c *= b; b *= b; x >>= 1; } return c; } inline mint &s(int vv) { v = vv < mod ? vv : vv - mod; return *this; } inline mint inv() const { return pow(mod - 2); } inline mint operator-() const { return mint() - *this; } inline mint &operator+=(const mint b) { return s(v + b.v); } inline mint &operator-=(const mint b) { return s(v + mod - b.v); } inline mint &operator*=(const mint b) { v = v * b.v % mod; return *this; } inline mint &operator/=(const mint b) { v = v * b.inv().v % mod; return *this; } inline mint operator+(const mint b) const { return mint(v) += b; } inline mint operator-(const mint b) const { return mint(v) -= b; } inline mint operator*(const mint b) const { return mint(v) *= b; } inline mint operator/(const mint b) const { return mint(v) /= b; } friend ostream &operator<<(ostream &os, const mint &m) { return os << m.v; } friend istream &operator>>(istream &is, mint &m) { int x; is >> x; m = mint(x); return is; } bool operator<(const mint &r) const { return v < r.v; } bool operator>(const mint &r) const { return v > r.v; } bool operator<=(const mint &r) const { return v <= r.v; } bool operator>=(const mint &r) const { return v >= r.v; } bool operator==(const mint &r) const { return v == r.v; } bool operator!=(const mint &r) const { return v != r.v; } explicit operator bool() const { return v; } explicit operator int() const { return v; } mint comb(mint k) { if (k > *this) return mint(); if (!fact[0]) combinit(); if (v >= fn_) { if (k > *this - k) k = *this - k; mint tmp(1); for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i); return tmp * comp[k.v]; } return fact[v] * comp[k.v] * comp[v - k.v]; } // nCk mint perm(mint k) { if (k > *this) return mint(); if (!fact[0]) combinit(); if (v >= fn_) { mint tmp(1); for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i); return tmp; } return fact[v] * comp[v - k.v]; } // nPk static void combinit() { fact[0] = 1; for (int i = 1; i < fn_; i++) fact[i] = fact[i - 1] * mint(i); comp[fn_ - 1] = fact[fn_ - 1].inv(); for (int i = fn_ - 2; i >= 0; i--) comp[i] = comp[i + 1] * mint(i + 1); } }; mint mint::fact[fn_], mint::comp[fn_]; //-------------------------------------------------------------- //--------------------------------------------------------------------- signed main() { int k = read(); if (k % 2 == 0) { cout << -1 << endl; return 0; } int sum = 0, r = 1; for (int i = 1; i < 10000000; i++) { (sum += (r * 7) % k) %= k; ; if (sum == 0) { cout << i << endl; return 0; } (r *= 10) %= k; } cout << -1 << endl; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define mp make_pair #define ff first #define ss second #define bg begin() #define en end() #define pb push_back #define w(x) \ scanf("%d", &x); \ while (x--) #define ws(x) \ scanf("%d", &x); \ getchar(); \ while (x--) #define rep(i, b) for (i = 0; i <= b; i++) #define ios \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); #define pi 2 * acos(0.0) #define endl "\n" using namespace std; typedef long long ll; typedef pair<ll, ll> pll; typedef vector<int> vi; const int N = 1e6 + 2; long long mod = 1e9 + 9; int t, j, cs = 0, n, b, i, a; string s; int main() { ios scanf("%d", &n); int a = 0, cnt = 0; while (a < n) { a = 10 * a + 7; cnt++; } if (n % 2 == 0) { printf("-1\n"); return 0; } while (a % n != 0) { a = a % n; a = a * 10 + 7; cnt++; // cout<<a<<endl; } printf("%d\n", cnt); }
#include <bits/stdc++.h> #define mp make_pair #define ff first #define ss second #define bg begin() #define en end() #define pb push_back #define w(x) \ scanf("%d", &x); \ while (x--) #define ws(x) \ scanf("%d", &x); \ getchar(); \ while (x--) #define rep(i, b) for (i = 0; i <= b; i++) #define ios \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); #define pi 2 * acos(0.0) #define endl "\n" using namespace std; typedef long long ll; typedef pair<ll, ll> pll; typedef vector<int> vi; const int N = 1e6 + 2; long long mod = 1e9 + 9; int t, j, cs = 0, n, b, i, a; string s; int main() { ios scanf("%d", &n); int a = 0, cnt = 0; while (a < n) { a = 10 * a + 7; cnt++; } if (n % 2 == 0 || n % 5 == 0) { printf("-1\n"); return 0; } while (a % n != 0) { a = a % n; a = a * 10 + 7; cnt++; // cout<<a<<endl; } printf("%d\n", cnt); }
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TLE
p02596
Python
Time Limit Exceeded
K = int(input()) if K % 2 == 0: print(-1) else: mod, modt, ans = 7 % K, 7 % K, 1 while mod != 0: modt = (modt * (10 % K)) % K mod, ans = (mod + modt) % K, ans + 1 print(ans)
K = int(input()) if K % 2 == 0 or K % 5 == 0: print(-1) else: mod, modt, ans = 7 % K, 7 % K, 1 while mod != 0: modt = (modt * (10 % K)) % K mod, ans = (mod + modt) % K, ans + 1 print(ans)
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TLE
p02596
Python
Time Limit Exceeded
K = int(input()) if K % 2 == 0 or K % 5 == 0: print(-1) exit() now = 0 count = 0 while True: now = now * 10 + 7 count += 1 if now % K == 0: print(count) exit()
K = int(input()) if K % 2 == 0 or K % 5 == 0: print(-1) exit() now = 0 count = 0 while True: now = (now * 10 + 7) % K count += 1 if now % K == 0: print(count) exit()
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; // #include <ext/pb_ds/assoc_container.hpp> // using namespace __gnu_pbds; // typedef tree <int,null_type,less <int>, rb_tree_tag, // tree_order_statistics_node_update> indexed_set; // #include <ext/rope> // using namespace __gnu_cxx; typedef long long int ll; typedef long double ld; #define FAST \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); #define rep(g, i, n) for (ll g = i; g < n; g++) #define rev(g, n, i) for (ll g = n - 1; g >= i; g--) #define all(v) v.begin(), v.end() #define pb push_back #define mxe(v) *max_element(v.begin(), v.end()) #define mne(v) *min_element(v.begin(), v.end()) #define ve vector #define lb lower_bound #define ub upper_bound #define bb break #define cc continue #define rem 1000000007 #define PI 3.141592653589793238462643383279502 ll power(ll x, ll y, ll p) { ll res = 1; // Initialize result x = x % p; // Update x if it is more than or while (y > 0) { if (y & 1) res = (res * x) % p; y = y >> 1; // y = y/2 x = (x * x) % p; } return res; } ll modInverse(ll n, ll p) { return power(n, p - 2, p); } struct point { ll x, y; }; int main() { FAST // freopen("input1.txt", "r", stdin); // freopen("output.txt", "w", stdout); /*ll tests; cin>>tests; rep (gg,0,tests) {}*/ ll k; cin >> k; ll ans = 0; rep(i, 1, 10000000) { ll val = 7 * power(10, i - 1, k); ans += val; ans %= k; if (ans == 0) { cout << i << "\n"; return 0; } } cout << "-1\n"; }
#include <bits/stdc++.h> using namespace std; // #include <ext/pb_ds/assoc_container.hpp> // using namespace __gnu_pbds; // typedef tree <int,null_type,less <int>, rb_tree_tag, // tree_order_statistics_node_update> indexed_set; // #include <ext/rope> // using namespace __gnu_cxx; typedef long long int ll; typedef long double ld; #define FAST \ ios::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); #define rep(g, i, n) for (ll g = i; g < n; g++) #define rev(g, n, i) for (ll g = n - 1; g >= i; g--) #define all(v) v.begin(), v.end() #define pb push_back #define mxe(v) *max_element(v.begin(), v.end()) #define mne(v) *min_element(v.begin(), v.end()) #define ve vector #define lb lower_bound #define ub upper_bound #define bb break #define cc continue #define rem 1000000007 #define PI 3.141592653589793238462643383279502 ll power(ll x, ll y, ll p) { ll res = 1; // Initialize result x = x % p; // Update x if it is more than or while (y > 0) { if (y & 1) res = (res * x) % p; y = y >> 1; // y = y/2 x = (x * x) % p; } return res; } ll modInverse(ll n, ll p) { return power(n, p - 2, p); } struct point { ll x, y; }; int main() { FAST // freopen("input1.txt", "r", stdin); // freopen("output.txt", "w", stdout); /*ll tests; cin>>tests; rep (gg,0,tests) {}*/ ll k; cin >> k; ll ans = 0; rep(i, 1, 1000000) { ll val = 7 * power(10, i - 1, k); ans += val; ans %= k; if (ans == 0) { cout << i << "\n"; return 0; } } cout << "-1\n"; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; void fastio() { cin.tie(nullptr); cin.sync_with_stdio(false); } using LL = long long; using LD = long double; const LL MOD = 1e9 + 7; const LL INF = LLONG_MAX; const LL N = 1e6 + 1; int main() { fastio(); LL k; cin >> k; LL low = k % 10; if (low == 2 || low == 4 || low == 5 || low == 6 || low == 8) { cout << -1 << "\n"; return 0; } LL mod = 7 % k, c = 1; while (mod != 0) { mod = ((mod * 10) + 7) % k; c++; } cout << c << "\n"; }
#include <bits/stdc++.h> using namespace std; void fastio() { cin.tie(nullptr); cin.sync_with_stdio(false); } using LL = long long; using LD = long double; const LL MOD = 1e9 + 7; const LL INF = LLONG_MAX; const LL N = 1e6 + 1; int main() { fastio(); LL k; cin >> k; LL low = k % 10; if (low == 2 || low == 4 || low == 5 || low == 6 || low == 8 || low == 0) { cout << -1 << "\n"; return 0; } LL mod = 7 % k, c = 1; while (mod != 0) { mod = ((mod * 10) + 7) % k; c++; } cout << c << "\n"; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define LL long long #define LLU long long unsigned #define rarr(arr, n) \ for (int aab = 0; aab < n; aab++) { \ cin >> arr[aab]; \ } #define parr(arr, n) \ for (int aab = 0; aab < n; aab++) { \ cout << arr[aab] << " "; \ } #define pb push_back #define f first #define s second #define all(x) x.begin(), x.end() #define debug(x) cout << #x << " = " << x << "\n"; #define freopen \ freopen("in.txt", "r", stdin); \ freopen("out.txt", "w", stdout); \ ios_base::sync_with_stdio(0); \ cin.tie(0); int main() { long long int n; cin >> n; if (n % 2 == 0) { cout << -1; } else { long long int ans = 1, number = 7; while (1) { if (number % n == 0) { cout << ans; return 0; } ans++; number = (number * 10 + 7) % n; } } }
#include <bits/stdc++.h> using namespace std; #define LL long long #define LLU long long unsigned #define rarr(arr, n) \ for (int aab = 0; aab < n; aab++) { \ cin >> arr[aab]; \ } #define parr(arr, n) \ for (int aab = 0; aab < n; aab++) { \ cout << arr[aab] << " "; \ } #define pb push_back #define f first #define s second #define all(x) x.begin(), x.end() #define debug(x) cout << #x << " = " << x << "\n"; #define freopen \ freopen("in.txt", "r", stdin); \ freopen("out.txt", "w", stdout); \ ios_base::sync_with_stdio(0); \ cin.tie(0); int main() { long long int n; cin >> n; if (n % 2 == 0 || n % 5 == 0) { cout << -1; } else { long long int ans = 1, number = 7; while (1) { if (number % n == 0) { cout << ans; return 0; } ans++; number = (number * 10 + 7) % n; } } }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define f(i, a, b) for (ll i = a; i < b; i++) #define af(i, a, b) for (ll i = a; i >= b; i--) #define rep(i, a, b, k) for (ll i = a; i < b; i += k) #define arep(i, a, b, k) for (ll i = a; i >= b; i -= k) #define ff first #define ss second #define pb push_back #define mp make_pair #define sz(a) (ll) a.size() #define all(a) a.begin(), a.end() #define sor(a) sort(a.begin(), a.end()) #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define inter \ ios::sync_with_stdio(false); \ cin.tie(nullptr); \ cout.tie(nullptr) // policy-based // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; using namespace std; typedef long long ll; // int or long long typedef long double ld; typedef pair<ll, ll> ii; typedef vector<ll> vi; typedef vector<ii> vii; /* typedef tree< ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; */ const ll MAX = 3e5 + 100; const ll inf = 1e12; const ll mod = 1e9 + 7; int main() { fastio; ll tc, n, x, y, k; cin >> k; ll ans = 0, pot = 7, sum = 0; if (k % 2 == 0 || k == 5) { cout << "-1\n"; return 0; } while (1) { ans++; (sum += (pot) % k) %= k; (pot *= 10) %= k; if (sum % k == 0) break; } cout << ans << endl; }
#include <bits/stdc++.h> #define f(i, a, b) for (ll i = a; i < b; i++) #define af(i, a, b) for (ll i = a; i >= b; i--) #define rep(i, a, b, k) for (ll i = a; i < b; i += k) #define arep(i, a, b, k) for (ll i = a; i >= b; i -= k) #define ff first #define ss second #define pb push_back #define mp make_pair #define sz(a) (ll) a.size() #define all(a) a.begin(), a.end() #define sor(a) sort(a.begin(), a.end()) #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(NULL) #define inter \ ios::sync_with_stdio(false); \ cin.tie(nullptr); \ cout.tie(nullptr) // policy-based // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; using namespace std; typedef long long ll; // int or long long typedef long double ld; typedef pair<ll, ll> ii; typedef vector<ll> vi; typedef vector<ii> vii; /* typedef tree< ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; */ const ll MAX = 3e5 + 100; const ll inf = 1e12; const ll mod = 1e9 + 7; int main() { fastio; ll tc, n, x, y, k; cin >> k; ll ans = 0, pot = 7, sum = 0; if (k % 2 == 0 || k % 5 == 0) { cout << "-1\n"; return 0; } while (1) { ans++; (sum += (pot) % k) %= k; (pot *= 10) %= k; if (sum % k == 0) break; } cout << ans << endl; }
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TLE
p02596
C++
Time Limit Exceeded
#include <algorithm> #include <array> #include <bitset> #include <cassert> #include <complex> #include <cstdio> #include <cstring> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <limits.h> #include <map> #include <math.h> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <time.h> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; using ll = long long; using ull = unsigned long long; #define rep(i, a, b) for (int i = a; i < b; i++) #define rrep(i, a, b) for (int i = b - 1; i >= a; i--) #define repl(i, a, b) for (long long i = a; i < b; i++) #define rrepl(i, a, b) for (long long i = b - 1; i >= a; i--) #define ALL(a) a.begin(), a.end() using pii = pair<int, int>; using piii = pair<pii, int>; using pll = pair<long long, long long>; using plll = pair<pll, long long>; // #pragma GCC optimize("Ofast") // #define _GLIBCXX_DEBUG #define pcnt __builtin_popcount #define buli(x) __builtin_popcountll(x) #define pb push_back #define mp make_pair #define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end()); #define isSquare(x) (sqrt(x) * sqrt(x) == x) 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 (a > b) { a = b; return 1; } return 0; }; inline void in(void) { return; } template <typename First, typename... Rest> void in(First &first, Rest &...rest) { cin >> first; in(rest...); return; } inline void out(void) { cout << "\n"; return; } template <typename First, typename... Rest> void out(First first, Rest... rest) { cout << first << " "; out(rest...); return; } const double EPS = 1e-9; const int mod = 1e9 + 7; // const int mod = 998244353; const int INF = 1e9; const long long INFLL = 1e18; void iosetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); cerr << fixed << setprecision(10); } template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << p.first << " " << p.second; return os; } template <typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 != v.size() ? " " : ""); } return os; } template <typename T> istream &operator>>(istream &is, vector<T> &v) { for (T &in : v) is >> in; return is; } template <class T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <class T, class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> pair<S, T> operator*(const pair<S, T> &s, const S &t) { return pair<S, T>(s.first * t, s.second * t); } template <typename T> void Exit(T first) { cout << first << endl; exit(0); }; template <int mod> struct ModInt { unsigned 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; } }; using modint = ModInt<mod>; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, 1, 0, -1}; const pii dxy[4] = {pii(1, 0), pii(0, 1), pii(-1, 0), pii(0, -1)}; //----------------------- edit from here --------------------------------- int main() { iosetup(); int K; cin >> K; if (K == 2) cout << -1 << endl; else { int cnt = 1; ll t = 7; while (true) { if (t % K == 0) Exit(cnt); t = (t * 10 + 7) % K; cnt++; } } return 0; }
#include <algorithm> #include <array> #include <bitset> #include <cassert> #include <complex> #include <cstdio> #include <cstring> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <limits.h> #include <map> #include <math.h> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <time.h> #include <unordered_map> #include <unordered_set> #include <vector> using namespace std; using ll = long long; using ull = unsigned long long; #define rep(i, a, b) for (int i = a; i < b; i++) #define rrep(i, a, b) for (int i = b - 1; i >= a; i--) #define repl(i, a, b) for (long long i = a; i < b; i++) #define rrepl(i, a, b) for (long long i = b - 1; i >= a; i--) #define ALL(a) a.begin(), a.end() using pii = pair<int, int>; using piii = pair<pii, int>; using pll = pair<long long, long long>; using plll = pair<pll, long long>; // #pragma GCC optimize("Ofast") // #define _GLIBCXX_DEBUG #define pcnt __builtin_popcount #define buli(x) __builtin_popcountll(x) #define pb push_back #define mp make_pair #define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end()); #define isSquare(x) (sqrt(x) * sqrt(x) == x) 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 (a > b) { a = b; return 1; } return 0; }; inline void in(void) { return; } template <typename First, typename... Rest> void in(First &first, Rest &...rest) { cin >> first; in(rest...); return; } inline void out(void) { cout << "\n"; return; } template <typename First, typename... Rest> void out(First first, Rest... rest) { cout << first << " "; out(rest...); return; } const double EPS = 1e-9; const int mod = 1e9 + 7; // const int mod = 998244353; const int INF = 1e9; const long long INFLL = 1e18; void iosetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); cerr << fixed << setprecision(10); } template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << p.first << " " << p.second; return os; } template <typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 != v.size() ? " " : ""); } return os; } template <typename T> istream &operator>>(istream &is, vector<T> &v) { for (T &in : v) is >> in; return is; } template <class T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <class T, class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> pair<S, T> operator*(const pair<S, T> &s, const S &t) { return pair<S, T>(s.first * t, s.second * t); } template <typename T> void Exit(T first) { cout << first << endl; exit(0); }; template <int mod> struct ModInt { unsigned 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; } }; using modint = ModInt<mod>; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, 1, 0, -1}; const pii dxy[4] = {pii(1, 0), pii(0, 1), pii(-1, 0), pii(0, -1)}; //----------------------- edit from here --------------------------------- int main() { iosetup(); int K; cin >> K; int cnt = 1; ll t = 7; set<int> st; while (true) { if (t % K == 0) Exit(cnt); st.insert(t); t = (t * 10 + 7) % K; if (st.find(t) != st.end()) Exit(-1); cnt++; } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long #define ld long double #define f(a, b) for (ll i = a; i <= b; i++) #define pb push_back #define pf push_front #define mp make_pair using namespace std; #define N 200005 const ll INF = 1000000000000000001; const ll MOD = 1000000007; // vector< vector<ll> > g(N); // vector< pair<ll, pair< ll, ll > > > g(N); // ll vis[N] = {0}, par[N] = {0}, child[N] = {0},cnt = 0; void solve() { ll n; cin >> n; ll i = 7, cnt = 0; while (cnt <= 500000000) { cnt++; if (i % n == 0) { cout << cnt << "\n"; return; } i *= 10; i += 7; i %= n; } cout << "-1\n"; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif // ll t;cin >> t;for(ll index=1; index<=t; index++){ // cout << "Case #" << index << ": " ; solve(); // } return 0; }
#include <bits/stdc++.h> #define ll long long #define ld long double #define f(a, b) for (ll i = a; i <= b; i++) #define pb push_back #define pf push_front #define mp make_pair using namespace std; #define N 200005 const ll INF = 1000000000000000001; const ll MOD = 1000000007; // vector< vector<ll> > g(N); // vector< pair<ll, pair< ll, ll > > > g(N); // ll vis[N] = {0}, par[N] = {0}, child[N] = {0},cnt = 0; void solve() { ll n; cin >> n; ll i = 7, cnt = 0; while (cnt <= 50000000) { cnt++; if (i % n == 0) { cout << cnt << "\n"; return; } i *= 10; i += 7; i %= n; } cout << "-1\n"; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif // ll t;cin >> t;for(ll index=1; index<=t; index++){ // cout << "Case #" << index << ": " ; solve(); // } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <algorithm> #include <bitset> #include <cassert> #include <cctype> #include <cerrno> #include <cfloat> #include <cmath> #include <complex> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctype.h> #include <deque> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <list> #include <map> #include <math.h> #include <queue> #include <random> #include <set> #include <stack> #include <stdio.h> #include <string.h> #include <string> #include <utility> #include <vector> using namespace std; #define FOR(i, a, b) for (int i = (a); i <= (b); i++) #define REP(i, n) FOR(i, 0, n - 1) #define NREP(i, n) FOR(i, 1, n) using ll = long long; using pii = pair<int, int>; using PII = pair<ll, ll>; using piii = pair<pii, pii>; using Pi = pair<int, pii>; using Graph = vector<vector<int>>; const int dx[4] = {0, -1, 1, 0}; const int dy[4] = {-1, 0, 0, 1}; bool check(int x, int y) { if (0 <= x && x < 55 && 0 <= y && y < 55) return true; else return false; } const ll INF = 1e9 + 7; int gcd(int x, int y) { if (x < y) swap(x, y); if (y == 0) return x; return gcd(y, x % y); } void mul(ll a, ll b) { a = a * b % INF; } using Graph = vector<vector<int>>; // iの逆元mod inf long long modinv(long long a, long long m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } const double PI = 3.14159265358979323846; const int MAX = 510000; ll fac[MAX], finv[MAX], inv[MAX]; // テーブルをつくる前処理 void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; // mod pにおける1,2,,,nの逆元 for (int i = 2; i < MAX; ++i) { fac[i] = fac[i - 1] * i % INF; inv[i] = INF - inv[INF % i] * (INF / i) % INF; finv[i] = finv[i - 1] * inv[i] % INF; } } ll COM(int n, int k) { if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % INF) % INF; } double Euclidean_distance(double x1, double y1, double x2, double y2) { return sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); } // 素因数分解 map<int, int> prime_factor(int n) { map<int, int> res; for (int i = 2; i * i <= n; ++i) { while (n % i == 0) { ++res[i]; n /= i; } } if (n != 1) res[n] = 1; return res; } ll powmod(ll a, ll k, ll mod) { ll ap = a, ans = 1; while (k) { if (k & 1) { ans *= ap; ans %= mod; } ap = ap * ap; ap %= mod; k >>= 1; } return ans; } ll invi(ll a, ll mod) { return powmod(a, mod - 2, mod); } #define PI 3.14159265358979323846 // 円周率 // 逆元Aを足したときのmodで割った余りは //+=invi(A) // Yで割ることはY^(10^9+7)-2を掛けることは同値 /////////////////////////////////////// int main() { ll k; cin >> k; ll cnt = 1; ll now = 7; while (true) { if (now % k == 0) { cout << cnt << endl; return 0; } now *= 10; now += 7; cnt++; if (now % k == 0) { cout << cnt << endl; return 0; } if (now > k) break; } ll key; key = now % k; while (true) { ll a = key; key *= 10; key += 7; key %= k; cnt++; if (key == 0) break; if (a == key) { cout << -1 << endl; return 0; } } cout << cnt << endl; return 0; }
#include <algorithm> #include <bitset> #include <cassert> #include <cctype> #include <cerrno> #include <cfloat> #include <cmath> #include <complex> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctype.h> #include <deque> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <list> #include <map> #include <math.h> #include <queue> #include <random> #include <set> #include <stack> #include <stdio.h> #include <string.h> #include <string> #include <utility> #include <vector> using namespace std; #define FOR(i, a, b) for (int i = (a); i <= (b); i++) #define REP(i, n) FOR(i, 0, n - 1) #define NREP(i, n) FOR(i, 1, n) using ll = long long; using pii = pair<int, int>; using PII = pair<ll, ll>; using piii = pair<pii, pii>; using Pi = pair<int, pii>; using Graph = vector<vector<int>>; const int dx[4] = {0, -1, 1, 0}; const int dy[4] = {-1, 0, 0, 1}; bool check(int x, int y) { if (0 <= x && x < 55 && 0 <= y && y < 55) return true; else return false; } const ll INF = 1e9 + 7; int gcd(int x, int y) { if (x < y) swap(x, y); if (y == 0) return x; return gcd(y, x % y); } void mul(ll a, ll b) { a = a * b % INF; } using Graph = vector<vector<int>>; // iの逆元mod inf long long modinv(long long a, long long m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } const double PI = 3.14159265358979323846; const int MAX = 510000; ll fac[MAX], finv[MAX], inv[MAX]; // テーブルをつくる前処理 void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; // mod pにおける1,2,,,nの逆元 for (int i = 2; i < MAX; ++i) { fac[i] = fac[i - 1] * i % INF; inv[i] = INF - inv[INF % i] * (INF / i) % INF; finv[i] = finv[i - 1] * inv[i] % INF; } } ll COM(int n, int k) { if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % INF) % INF; } double Euclidean_distance(double x1, double y1, double x2, double y2) { return sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); } // 素因数分解 map<int, int> prime_factor(int n) { map<int, int> res; for (int i = 2; i * i <= n; ++i) { while (n % i == 0) { ++res[i]; n /= i; } } if (n != 1) res[n] = 1; return res; } ll powmod(ll a, ll k, ll mod) { ll ap = a, ans = 1; while (k) { if (k & 1) { ans *= ap; ans %= mod; } ap = ap * ap; ap %= mod; k >>= 1; } return ans; } ll invi(ll a, ll mod) { return powmod(a, mod - 2, mod); } #define PI 3.14159265358979323846 // 円周率 // 逆元Aを足したときのmodで割った余りは //+=invi(A) // Yで割ることはY^(10^9+7)-2を掛けることは同値 /////////////////////////////////////// int main() { ll k; cin >> k; ll cnt = 1; ll now = 7; while (true) { if (now % k == 0) { cout << cnt << endl; return 0; } now *= 10; now += 7; cnt++; if (now % k == 0) { cout << cnt << endl; return 0; } if (now > k) break; } ll key; key = now % k; while (true) { ll a = key; key *= 10; key += 7; key %= k; cnt++; if (key == 0) break; if (a == key || cnt >= k) { cout << -1 << endl; return 0; } } cout << cnt << endl; return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define deb(x) cout << #x << "=" << x << endl; #define endl '\n' #define M 1000000007 #define int long long #define INF 1e18 #define max_n 1000000 using namespace std; void solve() { ll k; cin >> k; if (k % 2 == 0) cout << -1 << endl; else { ll ans = 1; ll x = 7; while (x % k != 0) { x *= 10; x += 7; x %= k; ans++; } cout << ans << endl; } } int32_t main() { IOS ll T = 1; // cin >> T; for (ll i = 1; i <= T; ++i) { // cout<<"Case #"<<i<<": "; solve(); } return 0; }
#include <bits/stdc++.h> #define ll long long #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define deb(x) cout << #x << "=" << x << endl; #define endl '\n' #define M 1000000007 #define int long long #define INF 1e18 #define max_n 1000000 using namespace std; void solve() { ll k; cin >> k; if (k % 2 == 0) cout << -1 << endl; else { ll ans = 1; ll x = 7; while (x % k != 0) { if (ans > k) { cout << -1 << endl; return; } x *= 10; x += 7; x %= k; ans++; } cout << ans << endl; } } int32_t main() { IOS ll T = 1; // cin >> T; for (ll i = 1; i <= T; ++i) { // cout<<"Case #"<<i<<": "; solve(); } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <algorithm> #include <cmath> #include <cstring> #include <iostream> #include <iterator> #include <map> #include <queue> #include <set> #include <stack> #include <vector> using namespace std; int main() { long long ch, i = 1, n, q, k, l, r; long long j; cin >> n; ch = 7; if (n % 2 != 0) { while (ch % n != 0) { i++; ch = (ch * 10 + 7) % n; } cout << i; } else cout << -1; return 0; }
#include <algorithm> #include <cmath> #include <cstring> #include <iostream> #include <iterator> #include <map> #include <queue> #include <set> #include <stack> #include <vector> using namespace std; int main() { long long ch, i = 1, n, q, k, l, r; long long j; cin >> n; ch = 7; if (n % 2 != 0) { while (ch % n != 0) { i++; ch = (ch * 10 + 7) % n; if (i > n) { cout << -1; return 0; } } cout << i; } else cout << -1; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < (n); i++) #define REPR(i, n) for (int i = (n); i >= 0; i--) #define FOR(i, m, n) for (int i = (m); i < (n); i++) #define INF 1e9 #define ALL(v) (v).begin(), (v).end() #define debug(x) cerr << #x << ": " << x << endl; using namespace std; typedef long long ll; signed main() { int k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } int index = 1; ll base = 7; while (true) { if (base % k == 0) break; base %= k; index++; base = base * 10 + 7; } cout << index << endl; return 0; }
#include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < (n); i++) #define REPR(i, n) for (int i = (n); i >= 0; i--) #define FOR(i, m, n) for (int i = (m); i < (n); i++) #define INF 1e9 #define ALL(v) (v).begin(), (v).end() #define debug(x) cerr << #x << ": " << x << endl; using namespace std; typedef long long ll; signed main() { int k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } int index = 1; ll base = 7; while (true) { if (base % k == 0) break; base %= k; index++; base = base * 10 + 7; if (index > 10000000) { cout << -1 << endl; return 0; } } cout << index << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define IOS \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define f0(i, a, n) for (i = a; i < n; i++) #define f1(i, a, n) for (i = a; i <= n; i++) #define tc(t) \ int t; \ cin >> t; \ while (t--) #define ini(x, y) memset(x, y, sizeof(x)) #define all(x) x.begin(), x.end() #define sz(x) x.size() #define ll long long int #define vi vector<int> #define si set<int> #define pb push_back #define mp make_pair #define M 1e9 + 7 #define rr return 0 #define endl '\n' using namespace std; void solve() { ll k, r = 0, cnt = 0; cin >> k; if (k % 2 == 0) { cout << -1 << endl; } else { do { r = ((r * 10) + 7) % k; cnt++; } while (r != 0); cout << cnt << endl; } } int main() { IOS; solve(); rr; }
#include <bits/stdc++.h> #define IOS \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0) #define f0(i, a, n) for (i = a; i < n; i++) #define f1(i, a, n) for (i = a; i <= n; i++) #define tc(t) \ int t; \ cin >> t; \ while (t--) #define ini(x, y) memset(x, y, sizeof(x)) #define all(x) x.begin(), x.end() #define sz(x) x.size() #define ll long long int #define vi vector<int> #define si set<int> #define pb push_back #define mp make_pair #define M 1e9 + 7 #define rr return 0 #define endl '\n' using namespace std; void solve() { ll k, r = 0, cnt = 0; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; } else { do { r = ((r * 10) + 7) % k; cnt++; } while (r != 0); cout << cnt << endl; } } int main() { IOS; solve(); rr; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define Rep(i, a, b) for (int i = a; i <= b; i++) #define _Rep(i, a, b) for (int i = a; i >= b; i--) #define RepG(i, u) for (int i = head[u]; ~i; i = e[i].next) typedef long long ll; const int N = 1e5 + 5; template <typename T> void read(T &x) { x = 0; int f = 1; char c = getchar(); for (; !isdigit(c); c = getchar()) if (c == '-') f = -1; for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + c - '0'; x *= f; } int n; int main() { read(n); if (n % 2 == 0) return puts("-1"), 0; int k = 0, ans = 0; while (1) { k = k * 10 + 7, k %= n; ans++; if (!k) break; } printf("%d\n", ans); return 0; }
#include <bits/stdc++.h> using namespace std; #define Rep(i, a, b) for (int i = a; i <= b; i++) #define _Rep(i, a, b) for (int i = a; i >= b; i--) #define RepG(i, u) for (int i = head[u]; ~i; i = e[i].next) typedef long long ll; const int N = 1e5 + 5; template <typename T> void read(T &x) { x = 0; int f = 1; char c = getchar(); for (; !isdigit(c); c = getchar()) if (c == '-') f = -1; for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + c - '0'; x *= f; } int n; int main() { read(n); if (n % 2 == 0) return puts("-1"), 0; int k = 0, ans = 0; while (1) { k = k * 10 + 7, k %= n; ans++; if (!k) break; if (ans > 5e7) return puts("-1"), 0; } printf("%d\n", ans); return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define lli long long #define all(i) i.begin(), i.end() #define rall(i) i.rbegin(), i.rend() #define rep0(i, j) for (int i = 0; i < j; i++) #define rep1(i, j) for (int i = 1; i <= j; i++) #define rep0d(i, j) for (int i = j - 1; i >= 0; i--) #define MOD 1000000007 #define MAX (lli)1e12 typedef pair<lli, lli> p; class Graph { int V; vector<list<p>> adj; const int INF = (int)1e6; public: Graph(lli V) : adj(V) { this->V = V; } void addEdge(int u, int v, int w) { adj[u].push_back(make_pair(v, w)); } lli edgeNum() { lli sum = 0; rep0(i, V) sum += adj[i].size(); return sum; } bool route(lli from, lli to) { // vec[i]==j: j->iっていうもとに戻れる道がある vector<lli> vec(V, -1); dfs(1, from, vec); return vec[to] >= 0; } void dfs(lli ed, lli num, vector<lli> &vec) { for (auto e : adj[num]) { if (vec[e.first] != -1) continue; vec[e.first] = num; dfs(ed + 1, e.first, vec); } } vector<int> bfs(int n) { queue<int> q; vector<int> vec(V, -1); q.push(n); vec[n] = 0; while (!q.empty()) { int p = q.front(); q.pop(); for (auto e : adj[p]) { if (vec[e.first] == -1) { q.push(e.first); vec[e.first] = e.second + vec[p]; } } } return vec; } vector<int> shortestPath(int src) { priority_queue<p, vector<p>, greater<p>> pq; vector<int> dist(V, INF); pq.push(make_pair(0, src)); dist[src] = 0; while (!pq.empty()) { int u = pq.top().second; pq.pop(); list<p>::iterator i; for (auto i = adj[u].begin(); i != adj[u].end(); ++i) { int v = i->first; int weight = i->second; if (dist[v] > dist[u] + weight) { dist[v] = dist[u] + weight; pq.push(make_pair(dist[v], v)); } } } for (int i = 0; i < V; i++) if (dist[i] == INF) dist[i] = -1; return dist; } }; struct UF { vector<int> par, size; UF(int N) : par(N), size(N, 1) { rep0(i, N) par[i] = i; } int root(int x) { if (par[x] == x) return x; return par[x] = root(par[x]); } void unite(int x, int y) { int rx = root(x); int ry = root(y); if (rx == ry) return; par[rx] = ry; size[rx] += size[ry]; } bool same(int x, int y) { int rx = root(x); int ry = root(y); return rx == ry; } int getSize(int x) { return size[x]; } }; struct BIT { vector<lli> tab; // bit table BIT(int n) : tab(n + 1) { rep0(i, n + 1) tab[i] = 0; } void add(int p, lli num) { for (++p; p < tab.size(); p += p & -p) tab[p] += num; } lli sum(int p) { // from 0 to p lli ans = 0; for (++p; p > 0; p -= p & -p) ans += tab[p]; return ans; } void debug() { rep0(i, tab.size()) cout << tab[i] << ' '; cout << endl; } }; // pairに関するもの lli sum(p c) { return (c.first + c.second); } p operator-(const p &l, const p &r) { return {l.first - r.first, l.second - r.second}; } bool cmpf(const pair<lli, lli> left, const pair<lli, lli> right) { return left.first < right.first; } bool cmps(const pair<lli, lli> left, const pair<lli, lli> right) { return left.second < right.second; } lli gcd(lli a, lli b) { if (a < b) return gcd(b, a); lli temp; while ((temp = a % b)) { a = b; b = temp; } return b; } struct nCr { vector<lli> f, rf; lli count = 0; nCr(lli num) : f(num), rf(num) { count = num; f[0] = 1; rep1(i, num) f[i] = (f[i - 1] * i) % MOD; rep0(i, num + 1) rf[i] = inv(f[i]); } lli inv(lli x) { lli res = 1; lli k = MOD - 2; lli y = x; while (k) { if (k & 1) res = (res * y) % MOD; y = (y * y) % MOD; k /= 2; } return res; } lli C(lli n, lli k) { if (k > n || k < 0) return 0; lli a = f[n]; lli b = rf[n - k]; lli c = rf[k]; lli bc = (b * c) % MOD; return (a * bc) % MOD; } }; int main() { lli n = 7, k, num = 0; cin >> k; if (k == 2 || k == 5) { cout << -1; return 0; } while (n % k != 0) { n %= k; n *= 10; n += 7; num++; } cout << num + 1; }
#include <bits/stdc++.h> using namespace std; #define lli long long #define all(i) i.begin(), i.end() #define rall(i) i.rbegin(), i.rend() #define rep0(i, j) for (int i = 0; i < j; i++) #define rep1(i, j) for (int i = 1; i <= j; i++) #define rep0d(i, j) for (int i = j - 1; i >= 0; i--) #define MOD 1000000007 #define MAX (lli)1e12 typedef pair<lli, lli> p; class Graph { int V; vector<list<p>> adj; const int INF = (int)1e6; public: Graph(lli V) : adj(V) { this->V = V; } void addEdge(int u, int v, int w) { adj[u].push_back(make_pair(v, w)); } lli edgeNum() { lli sum = 0; rep0(i, V) sum += adj[i].size(); return sum; } bool route(lli from, lli to) { // vec[i]==j: j->iっていうもとに戻れる道がある vector<lli> vec(V, -1); dfs(1, from, vec); return vec[to] >= 0; } void dfs(lli ed, lli num, vector<lli> &vec) { for (auto e : adj[num]) { if (vec[e.first] != -1) continue; vec[e.first] = num; dfs(ed + 1, e.first, vec); } } vector<int> bfs(int n) { queue<int> q; vector<int> vec(V, -1); q.push(n); vec[n] = 0; while (!q.empty()) { int p = q.front(); q.pop(); for (auto e : adj[p]) { if (vec[e.first] == -1) { q.push(e.first); vec[e.first] = e.second + vec[p]; } } } return vec; } vector<int> shortestPath(int src) { priority_queue<p, vector<p>, greater<p>> pq; vector<int> dist(V, INF); pq.push(make_pair(0, src)); dist[src] = 0; while (!pq.empty()) { int u = pq.top().second; pq.pop(); list<p>::iterator i; for (auto i = adj[u].begin(); i != adj[u].end(); ++i) { int v = i->first; int weight = i->second; if (dist[v] > dist[u] + weight) { dist[v] = dist[u] + weight; pq.push(make_pair(dist[v], v)); } } } for (int i = 0; i < V; i++) if (dist[i] == INF) dist[i] = -1; return dist; } }; struct UF { vector<int> par, size; UF(int N) : par(N), size(N, 1) { rep0(i, N) par[i] = i; } int root(int x) { if (par[x] == x) return x; return par[x] = root(par[x]); } void unite(int x, int y) { int rx = root(x); int ry = root(y); if (rx == ry) return; par[rx] = ry; size[rx] += size[ry]; } bool same(int x, int y) { int rx = root(x); int ry = root(y); return rx == ry; } int getSize(int x) { return size[x]; } }; struct BIT { vector<lli> tab; // bit table BIT(int n) : tab(n + 1) { rep0(i, n + 1) tab[i] = 0; } void add(int p, lli num) { for (++p; p < tab.size(); p += p & -p) tab[p] += num; } lli sum(int p) { // from 0 to p lli ans = 0; for (++p; p > 0; p -= p & -p) ans += tab[p]; return ans; } void debug() { rep0(i, tab.size()) cout << tab[i] << ' '; cout << endl; } }; // pairに関するもの lli sum(p c) { return (c.first + c.second); } p operator-(const p &l, const p &r) { return {l.first - r.first, l.second - r.second}; } bool cmpf(const pair<lli, lli> left, const pair<lli, lli> right) { return left.first < right.first; } bool cmps(const pair<lli, lli> left, const pair<lli, lli> right) { return left.second < right.second; } lli gcd(lli a, lli b) { if (a < b) return gcd(b, a); lli temp; while ((temp = a % b)) { a = b; b = temp; } return b; } struct nCr { vector<lli> f, rf; lli count = 0; nCr(lli num) : f(num), rf(num) { count = num; f[0] = 1; rep1(i, num) f[i] = (f[i - 1] * i) % MOD; rep0(i, num + 1) rf[i] = inv(f[i]); } lli inv(lli x) { lli res = 1; lli k = MOD - 2; lli y = x; while (k) { if (k & 1) res = (res * y) % MOD; y = (y * y) % MOD; k /= 2; } return res; } lli C(lli n, lli k) { if (k > n || k < 0) return 0; lli a = f[n]; lli b = rf[n - k]; lli c = rf[k]; lli bc = (b * c) % MOD; return (a * bc) % MOD; } }; int main() { lli n = 7, k, num = 0; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1; return 0; } while (n % k != 0) { n %= k; n *= 10; n += 7; num++; } cout << num + 1; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #ifdef ONLINE_JUDGE #define endl '\n' #ifndef CODE_JAM #undef CASE_INFO #endif #else #pragma GCC optimize "trapv" #endif #define F first #define S second #define pb push_back #define eb emplace_back #define mp make_pair #define rep(n) for (int i = 0; i < n; i++) #define repj(n) for (int j = 0; j < n; j++) #define all(p) p.begin(), p.end() #define count_1(p) __builtin_popcountll(p) #define count_0(p) __builtin_ctzll(p) using namespace std; template <class X = int> inline X mid(X s, X e) { return (s + (e - s) / 2); } template <class X = int> inline X len(X s, X e) { return (e - s + 1); } typedef long long ll; typedef pair<int, int> pii; typedef pair<int, ll> pil; typedef pair<ll, int> pli; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; const int MOD = 1e9 + 7; const int oo = 987654321; const ll OO = 1e18; class Timer { public: clock_t start; Timer() { start = clock(); } ~Timer() { cerr << (double)(clock() - start) / CLOCKS_PER_SEC << "\n"; } }; void solve() { int k; cin >> k; set<int> s; int cur = 7 % k; int steps = 1; s.insert(cur); while (1) { if (cur == 0) { cout << steps << endl; return; } cur = ((cur * 10) + 7) % k; if (cur != 0 and s.count(cur)) { cout << "-1\n"; return; } steps++; } } signed main() { Timer ti; ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int T = 1; #ifdef TEST_CASES cin >> T; #endif for (int t = 1; t <= T; t++) { #ifdef CASE_INFO cout << "Case #" << t << ": "; #endif solve(); } return 0; }
#include <bits/stdc++.h> #ifdef ONLINE_JUDGE #define endl '\n' #ifndef CODE_JAM #undef CASE_INFO #endif #else #pragma GCC optimize "trapv" #endif #define F first #define S second #define pb push_back #define eb emplace_back #define mp make_pair #define rep(n) for (int i = 0; i < n; i++) #define repj(n) for (int j = 0; j < n; j++) #define all(p) p.begin(), p.end() #define count_1(p) __builtin_popcountll(p) #define count_0(p) __builtin_ctzll(p) using namespace std; template <class X = int> inline X mid(X s, X e) { return (s + (e - s) / 2); } template <class X = int> inline X len(X s, X e) { return (e - s + 1); } typedef long long ll; typedef pair<int, int> pii; typedef pair<int, ll> pil; typedef pair<ll, int> pli; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; const int MOD = 1e9 + 7; const int oo = 987654321; const ll OO = 1e18; class Timer { public: clock_t start; Timer() { start = clock(); } ~Timer() { cerr << (double)(clock() - start) / CLOCKS_PER_SEC << "\n"; } }; void solve() { int k; cin >> k; set<int> s; int cur = 7 % k; int steps = 1; s.insert(cur); while (1) { if (cur == 0) { cout << steps << endl; return; } cur = ((cur * 10) + 7) % k; if (cur != 0 and s.count(cur)) { cout << "-1\n"; return; } s.insert(cur); steps++; } } signed main() { Timer ti; ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int T = 1; #ifdef TEST_CASES cin >> T; #endif for (int t = 1; t <= T; t++) { #ifdef CASE_INFO cout << "Case #" << t << ": "; #endif solve(); } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include "bits/stdc++.h" #define _USE_MATH_DEFINES #include <math.h> using namespace std; using ll = long long; using vll = std::vector<ll>; using vvll = std::vector<vll>; using vvvll = std::vector<vvll>; using ld = long double; using vld = std::vector<ld>; using vvld = std::vector<vld>; using vvvld = std::vector<vvld>; using bl = bool; using vbl = std::vector<bl>; using vvbl = std::vector<vbl>; using vvvbl = std::vector<vvbl>; using ss = string; using vss = std::vector<ss>; #define rep(i, n) for (ll(i) = 0; (i) < (ll)(n); (i)++) #define repm(i, n, m) for (ll(i) = m; (i) < (ll)(n); (i)++) #define repi(i, n) for (ll(i) = (n - 1); (i) >= (ll)(0); (i)--) #define repit(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++) #define all(v) v.begin(), v.end() #define println(v) \ { \ ll i = 0; \ for (auto(a) : v) { \ cerr << setw(2) << i << " : " << a << endl; \ i++; \ } \ } template <class T> void printsp(vector<T> v, size_t w = 3) { for (auto(a) : v) { cerr << setw(w) << a << " "; } cerr << endl; } 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> void bye(T a) { cout << a << '\n'; exit(0); } template <class T1, class T2> void bye(T1 a, T2 b) { cout << a << " " << b << '\n'; exit(0); } template <class T1, class T2, class T3> void bye(T1 a, T2 b, T3 c) { cout << a << " " << b << " " << c << '\n'; exit(0); } template <class T> void bye(vector<T> A) { rep(i, (ll)A.size()) { cout << A[i]; if (i != (ll)A.size() - 1) { cout << " "; } } cout << endl; exit(0); } // vector template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (T &x : vec) is >> x; return is; } // pair template <typename T, typename U> ostream &operator<<(ostream &os, pair<T, U> &pair_var) { os << "(" << pair_var.first << ", " << pair_var.second << ")"; return os; } // vector<string> ostream &operator<<(ostream &os, const vector<string> &vec) { ll N = to_string((ll)vec.size()).length(); string head; rep(i, N + 2) { head += "-"; } rep(i, 40) { head += to_string(i % 10); } os << setw(N) << head << endl; for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; } return os; } // vector<ll> ostream &operator<<(ostream &os, const vector<ll> &vec) { ll N = to_string((ll)vec.size()).length(); for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; } return os; } // vector<ld> ostream &operator<<(ostream &os, const vector<ld> &vec) { ll N = to_string((ll)vec.size()).length(); for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; // os <<vec[i] << endl; } return os; } // vvll ostream &operator<<(ostream &os, const vector<vector<ll>> &mat) { ll keta = 1; rep(i, mat.size()) { rep(j, mat[i].size()) { ll x = mat[i][j]; chmax(keta, (ll)to_string(x).length()); } } ll N = to_string((ll)mat.size()).length(); rep(i, mat.size()) { os << setw(N) << i << ": "; rep(j, mat[i].size()) { ll x = mat[i][j]; os << setw(keta + 1) << x; } os << endl; } return os; } // vector template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { for (ll i = 0; i < (ll)vec.size(); i++) { // os << setw(3) <<i <<" : "<< setw(5) << vec[i] << endl; os << setw(5) << vec[i]; } os << endl; return os; } // map template <typename T, typename U> ostream &operator<<(ostream &os, map<T, U> &map_var) { os << "{"; repit(itr, map_var) { // for(auto itr : map_var) { os << *itr; itr++; if (itr != map_var.end()) os << ", "; itr--; } os << "}"; return os; } // set template <typename T> ostream &operator<<(ostream &os, set<T> &set_var) { os << "{"; repit(itr, set_var) { // for( auto itr : set_var) { os << *itr; itr++; if (itr != set_var.end()) os << ", "; itr--; } os << "}"; return os; } #define DUMPOUT cerr #define DUMPCOLOR ("\033[36m") void dump_func() { DUMPOUT << endl; } template <class Head, class... Tail> void dump_func(Head &&head, Tail &&...tail) { DUMPOUT << DUMPCOLOR; DUMPOUT << head; if (sizeof...(Tail) > 0) { DUMPOUT << ", "; } dump_func(std::move(tail)...); DUMPOUT << "\033[m"; } #ifdef DEBUG_ #define DEB #define dump(...) \ DUMPOUT << DUMPCOLOR << "" << string(#__VA_ARGS__) << ": " \ << "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" << endl \ << "\033[m" \ << "", \ dump_func(__VA_ARGS__) #else #define DEB if (false) #define dump(...) #endif struct Fast { Fast() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(std::numeric_limits<double>::max_digits10); } } fast; inline vll cinvll(ll N, ll minus = 0) { vll A(N); rep(i, N) { cin >> A[i]; A[i] -= minus; } return move(A); } inline vvll zerosll(ll H, ll W, ll val = 0) { vvll A(H, vll(W, val)); return move(A); } inline vvvll zerosll3(ll H, ll W, ll C, ll val = 0) { vvvll A(H, vvll(W, vll(C, val))); return move(A); } vvll cinvll2(ll H, ll W, ll bias = 0) { vvll A = zerosll(H, W); rep(i, H) { rep(j, W) { cin >> A[i][j]; A[i][j] += bias; } } return move(A); } tuple<vll, vll> aho2(ll N) { vll A(N), B(N); rep(i, N) { cin >> A[i] >> B[i]; } return (make_tuple(A, B)); } template <class T = ll> inline vector<T> cinv(ll N, T val = 0) { vector<T> v(N); rep(i, N) { cin >> v[i]; v[i] += val; } return move(v); } template <class T = ll> inline vector<vector<T>> zeros(ll H, ll W, T val = 0) { vector<vector<T>> A(H, vector<T>(W, val)); return move(A); } template <class T = ll> inline vector<vector<vector<T>>> zeros3(ll H, ll W, ll C, T val = 0) { vector<vector<vector<T>>> A(H, vector<vector<T>>(W, vector<T>(C, val))); return move(A); } template <typename TTT> vector<ll> arg_sort(const vector<TTT> &A, bool ascend = true) { vector<ll> index(A.size()); iota(index.begin(), index.end(), 0); if (ascend) { std::sort(all(index), [&A](TTT i1, TTT i2) { return A[i1] < A[i2]; }); } else { std::sort(all(index), [&A](TTT i1, TTT i2) { return A[i1] > A[i2]; }); } return index; } template <typename TTT> vector<TTT> permute(vector<TTT> src, vll idx) { vector<TTT> dst(src.size()); rep(i, src.size()) { dst[i] = src[idx[i]]; } return move(dst); } void funcA() { ll N; cin >> N; if (N >= 30) { bye("Yes"); } bye("No"); } void func() { ll N; cin >> N; if (N % 2 == 0) { bye(-1); } ll cnt = 1; ll M = 7; while (M != 0) { while (M < N) { M = M * 10 + 7; cnt += 1; } M %= N; } bye(cnt); } void funcD() { ll N; cin >> N; ss S; cin >> S; N = S.length(); ll cnt = 0; ll w, r; w = 0; r = N - 1; while (true) { dump(S, cnt); while (w < N) { if (S[w] == 'W') { break; } w += 1; } while (r >= 0) { if (S[r] == 'R') { break; } r -= 1; } if (w < r) { swap(S[w], S[r]); cnt += 1; } else { break; } } bye(cnt); } #if 0 vld A; ll N,K; bool isOK(ld mid){ ll cnt =0; rep(i,N){ cnt += (ll)(ceill(A[i] / mid)-1.0); } if(cnt<=K){ return true; } return false; } void func(){ cin >> N >>K; A.resize(N); rep(i,N){ cin >> A[i]; } ld a_max=0; rep(i,N){ chmax(a_max,A[i]); } ld ok = a_max; ld ng = 0.0; dump(ok,ng); /* ok と ng のどちらが大きいかわからないことを考慮 */ ll cnt = 0; while (abs(ok - ng) > 1e-8) { ld mid = (ok + ng) / 2; //dump(ok,ng,mid); if (isOK(mid)) ok = mid; else ng = mid; cnt ++; if(cnt>10000){ break; } } dump(ok,ng); ll ans = (ll)ceill(ng); dump(cnt); bye(ans); } #endif int main() { dump("start"); func(); return 0; }
#include "bits/stdc++.h" #define _USE_MATH_DEFINES #include <math.h> using namespace std; using ll = long long; using vll = std::vector<ll>; using vvll = std::vector<vll>; using vvvll = std::vector<vvll>; using ld = long double; using vld = std::vector<ld>; using vvld = std::vector<vld>; using vvvld = std::vector<vvld>; using bl = bool; using vbl = std::vector<bl>; using vvbl = std::vector<vbl>; using vvvbl = std::vector<vvbl>; using ss = string; using vss = std::vector<ss>; #define rep(i, n) for (ll(i) = 0; (i) < (ll)(n); (i)++) #define repm(i, n, m) for (ll(i) = m; (i) < (ll)(n); (i)++) #define repi(i, n) for (ll(i) = (n - 1); (i) >= (ll)(0); (i)--) #define repit(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++) #define all(v) v.begin(), v.end() #define println(v) \ { \ ll i = 0; \ for (auto(a) : v) { \ cerr << setw(2) << i << " : " << a << endl; \ i++; \ } \ } template <class T> void printsp(vector<T> v, size_t w = 3) { for (auto(a) : v) { cerr << setw(w) << a << " "; } cerr << endl; } 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> void bye(T a) { cout << a << '\n'; exit(0); } template <class T1, class T2> void bye(T1 a, T2 b) { cout << a << " " << b << '\n'; exit(0); } template <class T1, class T2, class T3> void bye(T1 a, T2 b, T3 c) { cout << a << " " << b << " " << c << '\n'; exit(0); } template <class T> void bye(vector<T> A) { rep(i, (ll)A.size()) { cout << A[i]; if (i != (ll)A.size() - 1) { cout << " "; } } cout << endl; exit(0); } // vector template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (T &x : vec) is >> x; return is; } // pair template <typename T, typename U> ostream &operator<<(ostream &os, pair<T, U> &pair_var) { os << "(" << pair_var.first << ", " << pair_var.second << ")"; return os; } // vector<string> ostream &operator<<(ostream &os, const vector<string> &vec) { ll N = to_string((ll)vec.size()).length(); string head; rep(i, N + 2) { head += "-"; } rep(i, 40) { head += to_string(i % 10); } os << setw(N) << head << endl; for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; } return os; } // vector<ll> ostream &operator<<(ostream &os, const vector<ll> &vec) { ll N = to_string((ll)vec.size()).length(); for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; } return os; } // vector<ld> ostream &operator<<(ostream &os, const vector<ld> &vec) { ll N = to_string((ll)vec.size()).length(); for (ll i = 0; i < (ll)vec.size(); i++) { os << setw(N) << i << ": " << vec[i] << endl; // os <<vec[i] << endl; } return os; } // vvll ostream &operator<<(ostream &os, const vector<vector<ll>> &mat) { ll keta = 1; rep(i, mat.size()) { rep(j, mat[i].size()) { ll x = mat[i][j]; chmax(keta, (ll)to_string(x).length()); } } ll N = to_string((ll)mat.size()).length(); rep(i, mat.size()) { os << setw(N) << i << ": "; rep(j, mat[i].size()) { ll x = mat[i][j]; os << setw(keta + 1) << x; } os << endl; } return os; } // vector template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { for (ll i = 0; i < (ll)vec.size(); i++) { // os << setw(3) <<i <<" : "<< setw(5) << vec[i] << endl; os << setw(5) << vec[i]; } os << endl; return os; } // map template <typename T, typename U> ostream &operator<<(ostream &os, map<T, U> &map_var) { os << "{"; repit(itr, map_var) { // for(auto itr : map_var) { os << *itr; itr++; if (itr != map_var.end()) os << ", "; itr--; } os << "}"; return os; } // set template <typename T> ostream &operator<<(ostream &os, set<T> &set_var) { os << "{"; repit(itr, set_var) { // for( auto itr : set_var) { os << *itr; itr++; if (itr != set_var.end()) os << ", "; itr--; } os << "}"; return os; } #define DUMPOUT cerr #define DUMPCOLOR ("\033[36m") void dump_func() { DUMPOUT << endl; } template <class Head, class... Tail> void dump_func(Head &&head, Tail &&...tail) { DUMPOUT << DUMPCOLOR; DUMPOUT << head; if (sizeof...(Tail) > 0) { DUMPOUT << ", "; } dump_func(std::move(tail)...); DUMPOUT << "\033[m"; } #ifdef DEBUG_ #define DEB #define dump(...) \ DUMPOUT << DUMPCOLOR << "" << string(#__VA_ARGS__) << ": " \ << "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" << endl \ << "\033[m" \ << "", \ dump_func(__VA_ARGS__) #else #define DEB if (false) #define dump(...) #endif struct Fast { Fast() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(std::numeric_limits<double>::max_digits10); } } fast; inline vll cinvll(ll N, ll minus = 0) { vll A(N); rep(i, N) { cin >> A[i]; A[i] -= minus; } return move(A); } inline vvll zerosll(ll H, ll W, ll val = 0) { vvll A(H, vll(W, val)); return move(A); } inline vvvll zerosll3(ll H, ll W, ll C, ll val = 0) { vvvll A(H, vvll(W, vll(C, val))); return move(A); } vvll cinvll2(ll H, ll W, ll bias = 0) { vvll A = zerosll(H, W); rep(i, H) { rep(j, W) { cin >> A[i][j]; A[i][j] += bias; } } return move(A); } tuple<vll, vll> aho2(ll N) { vll A(N), B(N); rep(i, N) { cin >> A[i] >> B[i]; } return (make_tuple(A, B)); } template <class T = ll> inline vector<T> cinv(ll N, T val = 0) { vector<T> v(N); rep(i, N) { cin >> v[i]; v[i] += val; } return move(v); } template <class T = ll> inline vector<vector<T>> zeros(ll H, ll W, T val = 0) { vector<vector<T>> A(H, vector<T>(W, val)); return move(A); } template <class T = ll> inline vector<vector<vector<T>>> zeros3(ll H, ll W, ll C, T val = 0) { vector<vector<vector<T>>> A(H, vector<vector<T>>(W, vector<T>(C, val))); return move(A); } template <typename TTT> vector<ll> arg_sort(const vector<TTT> &A, bool ascend = true) { vector<ll> index(A.size()); iota(index.begin(), index.end(), 0); if (ascend) { std::sort(all(index), [&A](TTT i1, TTT i2) { return A[i1] < A[i2]; }); } else { std::sort(all(index), [&A](TTT i1, TTT i2) { return A[i1] > A[i2]; }); } return index; } template <typename TTT> vector<TTT> permute(vector<TTT> src, vll idx) { vector<TTT> dst(src.size()); rep(i, src.size()) { dst[i] = src[idx[i]]; } return move(dst); } void funcA() { ll N; cin >> N; if (N >= 30) { bye("Yes"); } bye("No"); } void func() { ll N; cin >> N; if (N % 2 == 0) { bye(-1); } ll cnt = 1; ll M = 7; while (M != 0) { while (M < N) { M = M * 10 + 7; cnt += 1; } M %= N; if (cnt > 1000000) { bye(-1); } } bye(cnt); } void funcD() { ll N; cin >> N; ss S; cin >> S; N = S.length(); ll cnt = 0; ll w, r; w = 0; r = N - 1; while (true) { dump(S, cnt); while (w < N) { if (S[w] == 'W') { break; } w += 1; } while (r >= 0) { if (S[r] == 'R') { break; } r -= 1; } if (w < r) { swap(S[w], S[r]); cnt += 1; } else { break; } } bye(cnt); } #if 0 vld A; ll N,K; bool isOK(ld mid){ ll cnt =0; rep(i,N){ cnt += (ll)(ceill(A[i] / mid)-1.0); } if(cnt<=K){ return true; } return false; } void func(){ cin >> N >>K; A.resize(N); rep(i,N){ cin >> A[i]; } ld a_max=0; rep(i,N){ chmax(a_max,A[i]); } ld ok = a_max; ld ng = 0.0; dump(ok,ng); /* ok と ng のどちらが大きいかわからないことを考慮 */ ll cnt = 0; while (abs(ok - ng) > 1e-8) { ld mid = (ok + ng) / 2; //dump(ok,ng,mid); if (isOK(mid)) ok = mid; else ng = mid; cnt ++; if(cnt>10000){ break; } } dump(ok,ng); ll ans = (ll)ceill(ng); dump(cnt); bye(ans); } #endif int main() { dump("start"); func(); return 0; }
insert
305
305
305
308
TLE
p02596
C++
Time Limit Exceeded
// Ayushman Tripathy, IIT Roorkee, CSE-23 #include <bits/stdc++.h> using namespace std; #define ll long long int #define db double #define fl float #define endl '\n' #define mod (ll)(1000000007) #define mod1 (ll)998242353 #define mod2 (ll)998244353 #define PI 3.1415926535897932384626433832795 #define pii pair<int, int> #define pll pair<ll, ll> #define fi first #define se second #define mp(x, y) make_pair(x, y) #define pb push_back #define pob pop_back #define Sort(v) sort(v.begin(), v.end()) #define Sortd(v) sort(v.begin(), v.end(), greater<>()) #define f(i, n) for (int i = 0; i < n; i++) #define f1(i, n) for (int i = 1; i < n; i++) #define rf(i, n) for (int i = n - 1; i >= 0; --i) #define rf1(i, n) for (int i = n - 1; i >= 1; --i) #define rep(i, a, b) for (int i = a; i < b; ++i) #define repn(i, a, b) for (int i = a; i <= b; ++i) #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); typedef vector<ll> vl; typedef vector<int> vi; typedef vector<bool> vb; typedef vector<pii> vpi; typedef vector<pll> vpl; typedef vector<vi> vvi; typedef priority_queue<int> pqi; typedef priority_queue<ll> pql; // NUMBER THEORY // SIEVE const int N = 1e7 + 1; vi sieve(int n) { vi prime; vi pr(n + 1); pr[0] = -1; pr[1] = -1; rep(i, 2, n + 1) { if (pr[i] != -1) { pr[i] = 1; for (int j = 2 * i; j <= n; j += i) { pr[j] = -1; } } } rep(i, 1, n + 1) { if (pr[i] == 1) { prime.pb(i); } } return prime; } vi min_prime_factor(int n) { vi min_pf(n + 1); rep(i, 2, n + 1) { min_pf[i] = 0; } min_pf[0] = 2; min_pf[1] = -1; // Doesn't exist :( rep(i, 2, n + 1) { if (min_pf[i] == 0) { for (int j = i; j <= n; j += i) { if (min_pf[j] == 0) min_pf[j] = i; } } } return min_pf; } // factorise function will return a vector consisting of all the prime factors // and number of times they occur vpi factorise(int n) { vi min_pf = min_prime_factor(n); vpi factors; int cnt = 0, fac = 1; while (n != 1) { cnt = 0; fac = min_pf[n]; while (n % fac == 0) { cnt++; n /= fac; } factors.pb(mp(fac, cnt)); } return factors; } // The above gives all prime factors of n in log(n) complexity and also the // powers of each factor in the factorisation // EULER-TOTIENT FUNCTION vi PHI(int n) { vi phi(n + 1); phi[0] = 0; phi[1] = 1; rep(i, 2, n + 1) { phi[i] = i; } rep(i, 2, n + 1) { if (phi[i] == i) { for (int j = i; j <= n; j += i) { phi[j] = phi[j] - phi[j] / i; // phi[i]=i(1-1/j1)(1-1/j2)(1-1/j3)... // where j1,j2,j3.. are prime } } } return phi; } // nC2 ll C2(ll n) { ll ans = max(((n * (n - 1)) / 2), (ll)0); return ans; } // Square ll sq(ll x) { return x * x; } // Binary Exponentiation ((a^b)%m) ll BinExp(ll a, ll b, ll m) { ll res = 1; a %= m; while (b) { if (b & 1) res = (res * a) % m; b >>= 1; a = (a * a) % m; } return res; } // GCD ll gcd(ll a, ll b) { if (b == 0) return a; if (a < b) swap(a, b); return gcd(b, a % b); } ll gcdExtended(ll a, ll b, ll &x, ll &y) { if (b == 0) { x = 1; y = 0; return a; } ll x1, y1; ll g = gcdExtended(b, a % b, x1, y1); x = y1; y = x1 - ((ll)(a / b)) * (y1); return g; } ll mod_inv(ll a, ll m) { ll x, y; ll g = (gcdExtended(a, m, x, y)); if (g != 1) return -1; //{mod inv doesn't exist} else { ll ans = ((x % m) + m) % m; //(to make the value positive if negative x //comes up from extended euclidean) return ans; } } // LCM ll lcm(ll a, ll b) { ll mul = a * b; if (a == 0 || b == 0) return 0; return (mul / gcd(a, b)); } //********************************************************************************// // GENERAL // PAIR SORTING // sort pair by second values bool sortsec(const pair<ll, ll> &a, const pair<ll, ll> &b) { return (a.second < b.second); } // sort pair by first vals in descending bool sortinrev(const pair<ll, ll> &a, const pair<ll, ll> &b) { return (a.first > b.first); } // String Hashing ll compute_hash(string s) { ll p = 31, m = 1e9 + 9; ll hash = 0, po = 1; f(i, s.length()) { hash = (hash + (s[i] - 'a' + 1) * po) % m; po = (po * p) % m; } return hash; } // vl h(2e6+7);//prefix hash // vl po(2e6+7);//powers // void compute_hash_array(string s){//same length substrings can be directly // compared for their hash values now for equality if data set is not extremely // large and hashes are unique // ll p=31,m=1e9+9; // po[0]=1; // f1(i,n+1)po[i]=(po[i-1]*p)%m; // h[0]=0; // f1(i,n+1){ // h[i]=(h[i-1]+(s[i-1]-'a'+1)*po[i-1])%m; // } // //hash[l to r] =(((h[r+1]-h[l]+m)%m)*po[n-l])%m // } vl LPS(string s) { int n = s.length(); vl lps(n); f1(i, n) { int j = lps[i - 1]; while (j > 0 && lps[j] != lps[i]) { j = lps[j - 1]; } if (s[i] == s[j]) ++j; lps[i] = j; } return lps; } //********************************************************************************// // GRAPHS const int V = 4e5 + 5; vvi adj(V); vb vis(V); // DFS void dfs(int s) { vis[s] = 1; for (auto i : adj[s]) { if (!vis[i]) { dfs(i); } } } // BFS // const int V =4e5+5; // vvi adj(V); // vb vis(V); // vi lvl(V); // vi par(V); // void bfs(int s){ // queue<int> q; // q.push(s); // lvl[s]=1; // vis[s]=1; // int v; // while(!q.empty()){ // v=q.front(); // for(auto i:adj[v]){ // q.push(i); // vis[i]=1; // par[i]=v; // lvl[i]=lvl[v]+1; // } // q.pop(); // } // } // UNION-FIND(DSU) // const int V =4e5+5; // vi par(V); // vi size(V); // void initialise(int n){ // f1(i,n+1){ // par[i]=i; // size[i]=1; // } // } // int root(int x){ // while(par[x]!=x){ // par[x]=par[par[x]]; // x=par[x]; // } // return x; // } // void union_find(int a,int b){//attaches smaller tree to bigger one // if(root(a)==root(b))return; // if(size[root(b)]>size[root(a)])swap(a,b);//a is the bigger rooted tree // size[root(a)]+=size[root(b)]; // par[root(b)]=root(a); // } //**********************************************************************************// // For Graphs void solve_g() { int x, y; int n, m; cin >> n >> m; f(i, m) { cin >> x >> y; adj[x].pb(y); adj[y].pb(x); } } void solve() { // #ifndef ONLINE_JUDGE // if(fopen("INPUT.txt","r")) // { // freopen ("INPUT.txt" , "r" , stdin); // freopen ("OUTPUT.txt" , "w" , stdout); // } // #endif int t; cin >> t; f(p, t) {} } int main() { fast; // solve(); ll k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; } else { k = 9 * k; ll rem = -1; f1(i, 9000001) { rem = ((7 * BinExp(10, i, k) - 7) % k + k) % k; if (rem == 0) { cout << i << endl; break; } } if (rem != 0) { cout << -1 << endl; } } return 0; }
// Ayushman Tripathy, IIT Roorkee, CSE-23 #include <bits/stdc++.h> using namespace std; #define ll long long int #define db double #define fl float #define endl '\n' #define mod (ll)(1000000007) #define mod1 (ll)998242353 #define mod2 (ll)998244353 #define PI 3.1415926535897932384626433832795 #define pii pair<int, int> #define pll pair<ll, ll> #define fi first #define se second #define mp(x, y) make_pair(x, y) #define pb push_back #define pob pop_back #define Sort(v) sort(v.begin(), v.end()) #define Sortd(v) sort(v.begin(), v.end(), greater<>()) #define f(i, n) for (int i = 0; i < n; i++) #define f1(i, n) for (int i = 1; i < n; i++) #define rf(i, n) for (int i = n - 1; i >= 0; --i) #define rf1(i, n) for (int i = n - 1; i >= 1; --i) #define rep(i, a, b) for (int i = a; i < b; ++i) #define repn(i, a, b) for (int i = a; i <= b; ++i) #define fast \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); typedef vector<ll> vl; typedef vector<int> vi; typedef vector<bool> vb; typedef vector<pii> vpi; typedef vector<pll> vpl; typedef vector<vi> vvi; typedef priority_queue<int> pqi; typedef priority_queue<ll> pql; // NUMBER THEORY // SIEVE const int N = 1e7 + 1; vi sieve(int n) { vi prime; vi pr(n + 1); pr[0] = -1; pr[1] = -1; rep(i, 2, n + 1) { if (pr[i] != -1) { pr[i] = 1; for (int j = 2 * i; j <= n; j += i) { pr[j] = -1; } } } rep(i, 1, n + 1) { if (pr[i] == 1) { prime.pb(i); } } return prime; } vi min_prime_factor(int n) { vi min_pf(n + 1); rep(i, 2, n + 1) { min_pf[i] = 0; } min_pf[0] = 2; min_pf[1] = -1; // Doesn't exist :( rep(i, 2, n + 1) { if (min_pf[i] == 0) { for (int j = i; j <= n; j += i) { if (min_pf[j] == 0) min_pf[j] = i; } } } return min_pf; } // factorise function will return a vector consisting of all the prime factors // and number of times they occur vpi factorise(int n) { vi min_pf = min_prime_factor(n); vpi factors; int cnt = 0, fac = 1; while (n != 1) { cnt = 0; fac = min_pf[n]; while (n % fac == 0) { cnt++; n /= fac; } factors.pb(mp(fac, cnt)); } return factors; } // The above gives all prime factors of n in log(n) complexity and also the // powers of each factor in the factorisation // EULER-TOTIENT FUNCTION vi PHI(int n) { vi phi(n + 1); phi[0] = 0; phi[1] = 1; rep(i, 2, n + 1) { phi[i] = i; } rep(i, 2, n + 1) { if (phi[i] == i) { for (int j = i; j <= n; j += i) { phi[j] = phi[j] - phi[j] / i; // phi[i]=i(1-1/j1)(1-1/j2)(1-1/j3)... // where j1,j2,j3.. are prime } } } return phi; } // nC2 ll C2(ll n) { ll ans = max(((n * (n - 1)) / 2), (ll)0); return ans; } // Square ll sq(ll x) { return x * x; } // Binary Exponentiation ((a^b)%m) ll BinExp(ll a, ll b, ll m) { ll res = 1; a %= m; while (b) { if (b & 1) res = (res * a) % m; b >>= 1; a = (a * a) % m; } return res; } // GCD ll gcd(ll a, ll b) { if (b == 0) return a; if (a < b) swap(a, b); return gcd(b, a % b); } ll gcdExtended(ll a, ll b, ll &x, ll &y) { if (b == 0) { x = 1; y = 0; return a; } ll x1, y1; ll g = gcdExtended(b, a % b, x1, y1); x = y1; y = x1 - ((ll)(a / b)) * (y1); return g; } ll mod_inv(ll a, ll m) { ll x, y; ll g = (gcdExtended(a, m, x, y)); if (g != 1) return -1; //{mod inv doesn't exist} else { ll ans = ((x % m) + m) % m; //(to make the value positive if negative x //comes up from extended euclidean) return ans; } } // LCM ll lcm(ll a, ll b) { ll mul = a * b; if (a == 0 || b == 0) return 0; return (mul / gcd(a, b)); } //********************************************************************************// // GENERAL // PAIR SORTING // sort pair by second values bool sortsec(const pair<ll, ll> &a, const pair<ll, ll> &b) { return (a.second < b.second); } // sort pair by first vals in descending bool sortinrev(const pair<ll, ll> &a, const pair<ll, ll> &b) { return (a.first > b.first); } // String Hashing ll compute_hash(string s) { ll p = 31, m = 1e9 + 9; ll hash = 0, po = 1; f(i, s.length()) { hash = (hash + (s[i] - 'a' + 1) * po) % m; po = (po * p) % m; } return hash; } // vl h(2e6+7);//prefix hash // vl po(2e6+7);//powers // void compute_hash_array(string s){//same length substrings can be directly // compared for their hash values now for equality if data set is not extremely // large and hashes are unique // ll p=31,m=1e9+9; // po[0]=1; // f1(i,n+1)po[i]=(po[i-1]*p)%m; // h[0]=0; // f1(i,n+1){ // h[i]=(h[i-1]+(s[i-1]-'a'+1)*po[i-1])%m; // } // //hash[l to r] =(((h[r+1]-h[l]+m)%m)*po[n-l])%m // } vl LPS(string s) { int n = s.length(); vl lps(n); f1(i, n) { int j = lps[i - 1]; while (j > 0 && lps[j] != lps[i]) { j = lps[j - 1]; } if (s[i] == s[j]) ++j; lps[i] = j; } return lps; } //********************************************************************************// // GRAPHS const int V = 4e5 + 5; vvi adj(V); vb vis(V); // DFS void dfs(int s) { vis[s] = 1; for (auto i : adj[s]) { if (!vis[i]) { dfs(i); } } } // BFS // const int V =4e5+5; // vvi adj(V); // vb vis(V); // vi lvl(V); // vi par(V); // void bfs(int s){ // queue<int> q; // q.push(s); // lvl[s]=1; // vis[s]=1; // int v; // while(!q.empty()){ // v=q.front(); // for(auto i:adj[v]){ // q.push(i); // vis[i]=1; // par[i]=v; // lvl[i]=lvl[v]+1; // } // q.pop(); // } // } // UNION-FIND(DSU) // const int V =4e5+5; // vi par(V); // vi size(V); // void initialise(int n){ // f1(i,n+1){ // par[i]=i; // size[i]=1; // } // } // int root(int x){ // while(par[x]!=x){ // par[x]=par[par[x]]; // x=par[x]; // } // return x; // } // void union_find(int a,int b){//attaches smaller tree to bigger one // if(root(a)==root(b))return; // if(size[root(b)]>size[root(a)])swap(a,b);//a is the bigger rooted tree // size[root(a)]+=size[root(b)]; // par[root(b)]=root(a); // } //**********************************************************************************// // For Graphs void solve_g() { int x, y; int n, m; cin >> n >> m; f(i, m) { cin >> x >> y; adj[x].pb(y); adj[y].pb(x); } } void solve() { // #ifndef ONLINE_JUDGE // if(fopen("INPUT.txt","r")) // { // freopen ("INPUT.txt" , "r" , stdin); // freopen ("OUTPUT.txt" , "w" , stdout); // } // #endif int t; cin >> t; f(p, t) {} } int main() { fast; // solve(); ll k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; } else { k = 9 * k; ll rem = -1; f1(i, 1000001) { rem = ((7 * BinExp(10, i, k) - 7) % k + k) % k; if (rem == 0) { cout << i << endl; break; } } if (rem != 0) { cout << -1 << endl; } } return 0; }
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p02596
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; #define ll long long #define int long long // comment it out when MLE #define endl "\n" // template <typename T> // using ordered_set = tree<T, null_type, less<int>, rb_tree_tag, // tree_order_statistics_node_update>; #define gok \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); // # define m 163577857 #define mo 1000000007 #define pi acos(-1) #define fi first #define se second #define pb push_back #define pii pair<int, int> #define REP(i, n) for (int i = 1; i <= n; i++) const ll mod = 1e9 + 7; // const int K = 2; // typedef vector<vector<int> > matrix; /* int add(int a, int b,int mod) { a%=mod; b%=mod; a += b; if (a >= mod) a -= mod; if(a<0) { a += mod; a %= mod; } return a; } int mul(ll a, int b,int mod) { a%=mod; b%=mod; a *= b; a += mod; return a % mod; } int po(int a,int b,int mod) { if(b==0) return 1; if(b%2==0) return po(mul(a,a,mod),b/2,mod); return mul(a,po(mul(a,a,mod),(b-1)/2,mod),mod); } ll fact[200003]; ll inv[200003]; void fact0() { int i,j; fact[0]=1; for(i=1;i<=200000;i++) { fact[i]=i*fact[i-1]%mod; } inv[0]=1; inv[1]=1; ll p=mod; for (i=2; i<=200000; i++) inv[i] = (p - (p/i) * inv[p%i] % p) % p; for(i=2;i<=200000;i++) { inv[i]*=inv[i-1]; inv[i]%=mod; } } int help(int a,int b) { // cout<<a<<" "<<b<<endl; int an = fact[a]; //cout<<an<<endl; an *= inv[b]; an %= mod; an *= inv[a-b]; an %= mod; return an; } /* void random() { srand(time(0)); for (int i = 0; i < n; i ++) perm[i] = i + 1; random_shuffle(perm, perm + n); } int ncr(int a,int b) { int tt = fact[a]; tt %= mod; tt *= inv[a-b]; tt %= mod; tt *= inv[b]; tt %= mod; return tt; } */ signed main() { gok int k; cin >> k; if (k % 2 == 0) cout << -1; else { int st = 7; st %= k; int cc = 1; while (st || cc > 1e7) { st = 10 * st + 7; st %= k; cc++; } if (cc > 1e7) cc = -1; cout << cc; } return 0; }
#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; #define ll long long #define int long long // comment it out when MLE #define endl "\n" // template <typename T> // using ordered_set = tree<T, null_type, less<int>, rb_tree_tag, // tree_order_statistics_node_update>; #define gok \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); // # define m 163577857 #define mo 1000000007 #define pi acos(-1) #define fi first #define se second #define pb push_back #define pii pair<int, int> #define REP(i, n) for (int i = 1; i <= n; i++) const ll mod = 1e9 + 7; // const int K = 2; // typedef vector<vector<int> > matrix; /* int add(int a, int b,int mod) { a%=mod; b%=mod; a += b; if (a >= mod) a -= mod; if(a<0) { a += mod; a %= mod; } return a; } int mul(ll a, int b,int mod) { a%=mod; b%=mod; a *= b; a += mod; return a % mod; } int po(int a,int b,int mod) { if(b==0) return 1; if(b%2==0) return po(mul(a,a,mod),b/2,mod); return mul(a,po(mul(a,a,mod),(b-1)/2,mod),mod); } ll fact[200003]; ll inv[200003]; void fact0() { int i,j; fact[0]=1; for(i=1;i<=200000;i++) { fact[i]=i*fact[i-1]%mod; } inv[0]=1; inv[1]=1; ll p=mod; for (i=2; i<=200000; i++) inv[i] = (p - (p/i) * inv[p%i] % p) % p; for(i=2;i<=200000;i++) { inv[i]*=inv[i-1]; inv[i]%=mod; } } int help(int a,int b) { // cout<<a<<" "<<b<<endl; int an = fact[a]; //cout<<an<<endl; an *= inv[b]; an %= mod; an *= inv[a-b]; an %= mod; return an; } /* void random() { srand(time(0)); for (int i = 0; i < n; i ++) perm[i] = i + 1; random_shuffle(perm, perm + n); } int ncr(int a,int b) { int tt = fact[a]; tt %= mod; tt *= inv[a-b]; tt %= mod; tt *= inv[b]; tt %= mod; return tt; } */ signed main() { gok int k; cin >> k; if (k % 2 == 0) cout << -1; else { int st = 7; st %= k; int cc = 1; while (st && cc <= 1e7) { st = 10 * st + 7; st %= k; cc++; } if (cc > 1e7) cc = -1; cout << cc; } return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define endl '\n' #define fi first #define se second #define pb push_back #define debug(x) cout << "[debug] " << #x << ": " << x << endl using namespace std; typedef long long ll; typedef pair<int, int> PII; typedef pair<ll, ll> PLL; const int MOD = 1e9 + 7; const int maxn = 1e6 + 5; const int inf = 0x3f3f3f3f; const ll INF = 0x3f3f3f3f3f3f3f3f; const double eps = 1e-8; const double PI = acos(-1.0); void header() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); } void solve() { ll res = 1, num = 7; int k; cin >> k; if (k & 1) { while (1) { if (num % k == 0) break; num = num * 10 + 7; num %= k; res++; } } else res = -1; cout << res << endl; } int main() { header(); solve(); return 0; }
#include <bits/stdc++.h> #define endl '\n' #define fi first #define se second #define pb push_back #define debug(x) cout << "[debug] " << #x << ": " << x << endl using namespace std; typedef long long ll; typedef pair<int, int> PII; typedef pair<ll, ll> PLL; const int MOD = 1e9 + 7; const int maxn = 1e6 + 5; const int inf = 0x3f3f3f3f; const ll INF = 0x3f3f3f3f3f3f3f3f; const double eps = 1e-8; const double PI = acos(-1.0); void header() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); } void solve() { ll res = 1, num = 7; int k; cin >> k; if (k & 1) { while (1) { if (res >= 1e7) { res = -1; break; } if (num % k == 0) break; num = num * 10 + 7; num %= k; res++; } } else res = -1; cout << res << endl; } int main() { header(); solve(); return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int k; cin >> k; long long t = 7; int count = 1; if (k % 2 == 0) { cout << -1; return 0; } while (true) { if (t % k == 0) break; else { t = ((t * 10) % k + 7) % k; count++; } } cout << count; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int k; cin >> k; long long t = 7; int count = 1; if (k % 2 == 0) { cout << -1; return 0; } while (true) { if (t % k == 0) break; else { t = ((t * 10) % k + 7) % k; count++; if (count > k) { cout << -1; return 0; } } } cout << count; return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long #define ld long double #define all(v) v.begin(), v.end() #define pb push_back #define rep(p, a, b) for (ll p = a; p < b; p++) #define F first #define S second using namespace std; int main() { ll t, i, j, k, ans, n; // cin>>t; t = 1; while (t--) { ll term = 7, pos = 1; cin >> k; i = 0; while (i <= k * k && term % k) { term = (term * 10 % k + 7 % k) % k; pos++; i++; } if (term % k == 0) cout << pos; else cout << "-1"; } return 0; }
#include <bits/stdc++.h> #define ll long long #define ld long double #define all(v) v.begin(), v.end() #define pb push_back #define rep(p, a, b) for (ll p = a; p < b; p++) #define F first #define S second using namespace std; int main() { ll t, i, j, k, ans, n; // cin>>t; t = 1; while (t--) { ll term = 7, pos = 1; cin >> k; i = 0; while (i <= 2 * k && term % k) { term = (term * 10 % k + 7 % k) % k; pos++; i++; } if (term % k == 0) cout << pos; else cout << "-1"; } return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #include <cstdio> #include <cstring> #include <cmath> #include <cstring> #include <chrono> #include <complex> #define endl "\n" typedef long long LL; #define ll unsigned long long int #define vi vector<int> #define vll vector<ll> #define vvi vector<vi> #define pii pair<int, int> #define pll pair<long long, long long> // #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000000001; #define all(c) c.begin(), c.end() #define sz(v) ((ll)(v).size()) #define mp(x, y) make_pair(x, y) #define mem(a, val) memset(a, val, sizeof(a)) #define eb emplace_back #define pb push_back #define f first #define s second #define dbg(a) cout << #a << " --> " << (a) << "\n"; #define forn(i, n) for (ll i = 0; i < (n); ++i) #define fornd(i, n) for (ll i = (n)-1; i >= 0; --i) #define forab(i, a, b) for (ll i = (a); i <= (b); ++i) #define read(a) \ ll a; \ cin >> a; #define reads(s) \ string s; \ cin >> s; #define readb(a, b) \ ll a, b; \ cin >> a >> b; #define readc(a, b, c) \ ll a, b, c; \ cin >> a >> b >> c; #define readarr(a, n) \ int a[(n) + 1] = {}; \ forab(i, 0, (n - 1)) { cin >> a[i]; } #define readmat(a, n, m) \ int a[n + 1][m + 1] = {}; \ forab(i, 1, n) { forab(j, 1, m) cin >> a[i][j]; } #define readv(A, n) \ vll A(n, 0); \ forn(i, n) cin >> A[i]; #define print(a) cout << a << endl; #define printarr(a, n) \ forab(i, 1, n) cout << a[i] << " "; \ cout << endl; #define printv(v) \ for (int i : v) \ cout << i << " "; \ cout << endl; #define printmat(a, n, m) \ forab(i, 1, n) { \ forab(j, 1, m) cout << a[i][j] << " "; \ cout << endl; \ } #define fast_io ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL) using namespace std; void solve() { ll k; cin >> k; set<ll> pq; ll er = 7 % k; ll i = 1; while (er != 0) { er = (10 * er + 7) % k; i++; // if(temp%k==1) // { // cout<<i<<endl; // return; // } if (pq.count(er)) { cout << "-1" << endl; return; } } cout << i << endl; // cout<<"-1"<<endl; } int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif fast_io; int T = 1; // cin>>T; // cin.ignore(); must be there when using getline(cin, s) while (T--) { solve(); } return 0; }
#include <bits/stdc++.h> #include <cstdio> #include <cstring> #include <cmath> #include <cstring> #include <chrono> #include <complex> #define endl "\n" typedef long long LL; #define ll unsigned long long int #define vi vector<int> #define vll vector<ll> #define vvi vector<vi> #define pii pair<int, int> #define pll pair<long long, long long> // #define mod 1000000007 #define mod2 998244353 #define inf 1000000000000000001; #define all(c) c.begin(), c.end() #define sz(v) ((ll)(v).size()) #define mp(x, y) make_pair(x, y) #define mem(a, val) memset(a, val, sizeof(a)) #define eb emplace_back #define pb push_back #define f first #define s second #define dbg(a) cout << #a << " --> " << (a) << "\n"; #define forn(i, n) for (ll i = 0; i < (n); ++i) #define fornd(i, n) for (ll i = (n)-1; i >= 0; --i) #define forab(i, a, b) for (ll i = (a); i <= (b); ++i) #define read(a) \ ll a; \ cin >> a; #define reads(s) \ string s; \ cin >> s; #define readb(a, b) \ ll a, b; \ cin >> a >> b; #define readc(a, b, c) \ ll a, b, c; \ cin >> a >> b >> c; #define readarr(a, n) \ int a[(n) + 1] = {}; \ forab(i, 0, (n - 1)) { cin >> a[i]; } #define readmat(a, n, m) \ int a[n + 1][m + 1] = {}; \ forab(i, 1, n) { forab(j, 1, m) cin >> a[i][j]; } #define readv(A, n) \ vll A(n, 0); \ forn(i, n) cin >> A[i]; #define print(a) cout << a << endl; #define printarr(a, n) \ forab(i, 1, n) cout << a[i] << " "; \ cout << endl; #define printv(v) \ for (int i : v) \ cout << i << " "; \ cout << endl; #define printmat(a, n, m) \ forab(i, 1, n) { \ forab(j, 1, m) cout << a[i][j] << " "; \ cout << endl; \ } #define fast_io ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL) using namespace std; void solve() { ll k; cin >> k; set<ll> pq; ll er = 7 % k; ll i = 1; while (er != 0) { er = (10 * er + 7) % k; i++; // if(temp%k==1) // { // cout<<i<<endl; // return; // } if (pq.count(er)) { cout << "-1" << endl; return; } pq.insert(er); } cout << i << endl; // cout<<"-1"<<endl; } int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif fast_io; int T = 1; // cin>>T; // cin.ignore(); must be there when using getline(cin, s) while (T--) { solve(); } return 0; }
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p02596
C++
Time Limit Exceeded
#include <algorithm> #include <iostream> #include <map> #include <queue> #include <set> #include <string> #include <vector> using namespace std; typedef long long int ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; /*bool compare_function(const pair<int, int> a, const pair<int, int> b) { return a.first < b.first; }*/ // use case // sort(V.begin(), V.end(), compare_function); /*struct compare { bool operator ()(const pair<int, int> &a, const pair<int, int> &b) { if (a.second-a.first==b.second-b.first) { return a.first>b.first; } return a.second-a.first < b.second-b.first;} }; priority_queue <pair<int,int>, vector <pair<int,int>>, compare> Q;*/ /*void print1(vector <int> X) { for (int i=0; i<X.size(); i++) { cout<<X[i]<<" "; } cout<<endl; return; } void print2(vector <vector <int>> X) { for (int i=0; i<X.size(); i++) { for (int j=0;j<X[i].size();j++) { cout<<X[i][j]<<" ";} cout<<endl;} return; }*/ int main() { ios_base::sync_with_stdio(false); cin.tie(0); int k; cin >> k; if (k % 7 == 0) { k = k / 7; } if (k % 2 == 0) { cout << -1 << endl; } else { int a = 1 % k; int l = 1; while (a > 0) { a = (10 * a + 1) % k; l++; } cout << l << endl; } return 0; }
#include <algorithm> #include <iostream> #include <map> #include <queue> #include <set> #include <string> #include <vector> using namespace std; typedef long long int ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; /*bool compare_function(const pair<int, int> a, const pair<int, int> b) { return a.first < b.first; }*/ // use case // sort(V.begin(), V.end(), compare_function); /*struct compare { bool operator ()(const pair<int, int> &a, const pair<int, int> &b) { if (a.second-a.first==b.second-b.first) { return a.first>b.first; } return a.second-a.first < b.second-b.first;} }; priority_queue <pair<int,int>, vector <pair<int,int>>, compare> Q;*/ /*void print1(vector <int> X) { for (int i=0; i<X.size(); i++) { cout<<X[i]<<" "; } cout<<endl; return; } void print2(vector <vector <int>> X) { for (int i=0; i<X.size(); i++) { for (int j=0;j<X[i].size();j++) { cout<<X[i][j]<<" ";} cout<<endl;} return; }*/ int main() { ios_base::sync_with_stdio(false); cin.tie(0); int k; cin >> k; if (k % 7 == 0) { k = k / 7; } if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; } else { int a = 1 % k; int l = 1; while (a > 0) { a = (10 * a + 1) % k; l++; } cout << l << endl; } return 0; }
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p02596
C++
Runtime Error
/* Simplicity and Goodness */ #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; // typedef tree<int, null_type, less<int>, rb_tree_tag, // tree_order_statistics_node_update> indexed_set; void my_dbg() { cout << endl; } template <typename Arg, typename... Args> void my_dbg(Arg A, Args... B) { cout << ' ' << A; my_dbg(B...); } #define dbg(...) cout << "(" << #__VA_ARGS__ << "):", my_dbg(__VA_ARGS__) #define scn(n) scanf("%d", &n) #define lscn(n) scanf("%lld", &n) #define pri(n) printf("%d ", (int)(n)) #define prin(n) printf("%d\n", (int)(n)) #define lpri(n) printf("%lld ", n) #define lprin(n) printf("%lld\n", n) #define rep(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define pb push_back #define mp make_pair #define F first #define S second using ll = long long; using vi = vector<int>; using vl = vector<ll>; const int inf = INT_MAX; const int ninf = INT_MIN; const int mod = 1e9 + 7; const int maxN = 2e5 + 2; ll me(ll x, ll n, ll m) { ll res = 1; x %= m; while (n) { if (n & 1) res = (1LL * res * x) % m; x = (1LL * x * x) % m; n >>= 1; } return res; } void solve() { ll k; lscn(k); ll remain = 0; for (ll i = 0; i <= (ll)1e6 + 2; ++i) { ll here = me(10, i, k); here = (here * 7LL) % k; remain += here; if (remain % k == 0) { lprin(i + 1); exit(0); } if (here == 0) { prin(-1); exit(0); } } assert(0); } int main() { int t = 1; // scn(t); while (t--) { solve(); } return 0; }
/* Simplicity and Goodness */ #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; // typedef tree<int, null_type, less<int>, rb_tree_tag, // tree_order_statistics_node_update> indexed_set; void my_dbg() { cout << endl; } template <typename Arg, typename... Args> void my_dbg(Arg A, Args... B) { cout << ' ' << A; my_dbg(B...); } #define dbg(...) cout << "(" << #__VA_ARGS__ << "):", my_dbg(__VA_ARGS__) #define scn(n) scanf("%d", &n) #define lscn(n) scanf("%lld", &n) #define pri(n) printf("%d ", (int)(n)) #define prin(n) printf("%d\n", (int)(n)) #define lpri(n) printf("%lld ", n) #define lprin(n) printf("%lld\n", n) #define rep(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define pb push_back #define mp make_pair #define F first #define S second using ll = long long; using vi = vector<int>; using vl = vector<ll>; const int inf = INT_MAX; const int ninf = INT_MIN; const int mod = 1e9 + 7; const int maxN = 2e5 + 2; ll me(ll x, ll n, ll m) { ll res = 1; x %= m; while (n) { if (n & 1) res = (1LL * res * x) % m; x = (1LL * x * x) % m; n >>= 1; } return res; } void solve() { ll k; lscn(k); ll remain = 0; for (ll i = 0; i <= (ll)1e6 + 2; ++i) { ll here = me(10, i, k); here = (here * 7LL) % k; remain += here; if (remain % k == 0) { lprin(i + 1); exit(0); } if (here == 0) { prin(-1); exit(0); } } prin(-1); } int main() { int t = 1; // scn(t); while (t--) { solve(); } return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long int #define max3(a, b, c) max(a, max(b, c)) #define min3(a, b, c) min(a, min(b, c)) #define vi vector<int> #define vvi vector<vector<int>> #define mii map<int, int> #define pb push_back #define pii pair<int, int> #define mkp make_pair #define scan(a, n) \ for (int i = 0; i < n; i++) \ cin >> a[i] #define print(a, n) \ for (int i = 0; i < n; i++) \ cout << a[i] << ' ' #define mem(a, v) memset(a, v, sizeof(a)) #define loop(i, a, n) for (int i = a; i < n; i++) #define FastIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL) #define PRECISION \ std::cout.unsetf(std::ios::floatfield); \ std::cout.precision(15) double PI = acos(-1.0); using namespace std; int mod = 1000000007; int inf = INT_MAX; int minf = INT_MIN; /*int main() { int x; cin>>x; if(x>=30) cout<<"Yes"; else cout<<"No"; }*/ /*int main() { ll n,d; cin>>n>>d; int cnt=0; while(n--) { ll x,y; cin>>x>>y; ll temp=x*x+y*y; ll ans=ceil(sqrt(temp)); //cout<<ans<<endl; if(ans<=d) cnt++; } cout<<cnt; }*/ int main() { int k; cin >> k; if (k % 2 == 0) { cout << "-1"; return 0; } int first = 7, cnt = 1; while (k > first) { first = first * 10 + 7; cnt++; } while (first > 0) { first = first % k; if (first > 0) { first = first * 10 + 7; cnt++; } } cout << cnt; }
#include <bits/stdc++.h> #define ll long long int #define max3(a, b, c) max(a, max(b, c)) #define min3(a, b, c) min(a, min(b, c)) #define vi vector<int> #define vvi vector<vector<int>> #define mii map<int, int> #define pb push_back #define pii pair<int, int> #define mkp make_pair #define scan(a, n) \ for (int i = 0; i < n; i++) \ cin >> a[i] #define print(a, n) \ for (int i = 0; i < n; i++) \ cout << a[i] << ' ' #define mem(a, v) memset(a, v, sizeof(a)) #define loop(i, a, n) for (int i = a; i < n; i++) #define FastIO \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL) #define PRECISION \ std::cout.unsetf(std::ios::floatfield); \ std::cout.precision(15) double PI = acos(-1.0); using namespace std; int mod = 1000000007; int inf = INT_MAX; int minf = INT_MIN; /*int main() { int x; cin>>x; if(x>=30) cout<<"Yes"; else cout<<"No"; }*/ /*int main() { ll n,d; cin>>n>>d; int cnt=0; while(n--) { ll x,y; cin>>x>>y; ll temp=x*x+y*y; ll ans=ceil(sqrt(temp)); //cout<<ans<<endl; if(ans<=d) cnt++; } cout<<cnt; }*/ int main() { int k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << "-1"; return 0; } int first = 7, cnt = 1; while (k > first) { first = first * 10 + 7; cnt++; } while (first > 0) { first = first % k; if (first > 0) { first = first * 10 + 7; cnt++; } } cout << cnt; }
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TLE
p02596
C++
Time Limit Exceeded
#include <cmath> #include <cstdint> #include <iostream> #include <string> using namespace std; int main() { int K; cin >> K; if (K % 2 == 0) { cout << -1 << endl; return 0; } int64_t unit = log10(K) + 1; int sevens = stoi(string(unit, '7')); while (true) { sevens %= K; if (sevens % K == 0) { break; } sevens = sevens * 10 + 7; ++unit; } cout << unit << endl; return 0; }
#include <cmath> #include <cstdint> #include <iostream> #include <string> using namespace std; int main() { int K; cin >> K; if (K % 2 == 0) { cout << -1 << endl; return 0; } int64_t unit = log10(K) + 1; int sevens = stoi(string(unit, '7')); while (true) { sevens %= K; if (sevens % K == 0) { break; } sevens = sevens * 10 + 7; ++unit; if (unit > 10000000) { cout << -1 << endl; return 0; } } cout << unit << endl; return 0; }
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p02596
C++
Time Limit Exceeded
#include "bits/stdc++.h" using namespace std; #define all(v) v.begin(), v.end() #define pb push_back #define sz(x) (int)(x.size()) #define endl "\n" #define isOdd(n) (n & 1) #define pow(n, m) (ll) powl(n, m) #define clr(x, val) memset(x, val, sizeof(x)) #define EPS 1e-7 typedef long long ll; typedef long double ld; typedef pair<int, int> pii; typedef vector<int> vi; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); ll k, c = 1, x = 7; cin >> k; if (!isOdd(k)) return cout << -1, 0; while (x % k != 0 && c < (int)1e8) { x = ((x * 10 % k) + 7) % k; c++; } if (x % k != 0) c = -1; cout << c; return 0; }
#include "bits/stdc++.h" using namespace std; #define all(v) v.begin(), v.end() #define pb push_back #define sz(x) (int)(x.size()) #define endl "\n" #define isOdd(n) (n & 1) #define pow(n, m) (ll) powl(n, m) #define clr(x, val) memset(x, val, sizeof(x)) #define EPS 1e-7 typedef long long ll; typedef long double ld; typedef pair<int, int> pii; typedef vector<int> vi; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); ll k, c = 1, x = 7; cin >> k; if (!isOdd(k)) return cout << -1, 0; while (x % k != 0 && c < (int)1e7) { x = ((x * 10 % k) + 7) % k; c++; } if (x % k != 0) c = -1; cout << c; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define mx 100005 #define ll long long int ar[mx]; char ch[mx]; int m, n, k, ii; void solve() { cin >> n; if (n % 2 == 0) { cout << -1 << endl; return; } int cnt = 0; ll hate = 0; while (1) { cnt++; hate *= 10; hate += 7; hate %= n; if (hate == 0) break; } cout << cnt << endl; } int main() { #ifndef ONLINE_JUDGE freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif int t = 1; while (t--) { solve(); } return 0; }
#include <bits/stdc++.h> using namespace std; #define mx 100005 #define ll long long int ar[mx]; char ch[mx]; int m, n, k, ii; void solve() { cin >> n; if (n % 2 == 0) { cout << -1 << endl; return; } int cnt = 0; ll hate = 0; while (1) { cnt++; hate *= 10; hate += 7; hate %= n; if (hate == 0) break; if (cnt > 1000000) { cout << -1 << endl; return; } } cout << cnt << endl; } int main() { #ifndef ONLINE_JUDGE freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif int t = 1; while (t--) { solve(); } return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { int k; cin >> k; if (k % 2 == 0) { printf("-1"); return 0; } int remind = 7 % k, number = 1; while (remind) { ++number; remind = (remind * 10 + 7) % k; } printf("%d\n", number); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int k; cin >> k; if (k % 2 == 0) { printf("-1"); return 0; } int remind = 7 % k, number = 1; while (remind) { ++number; remind = (remind * 10 + 7) % k; if (number > 1000000) { cout << "-1" << endl; return 0; } } printf("%d\n", number); return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) #define rep1(i, n) for (ll i = 1; i <= (ll)(n); i++) #define INF 10000000000 #define MOD 1000000007 using ll = long long; using Graph = vector<vector<int>>; int main() { int K; cin >> K; int res = 1; int S = 7; if (K % 2 == 0) { cout << -1 << endl; return 0; } while (S % K != 0) { S = S * 10 + 7; res++; S %= K; } cout << res << endl; }
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) #define rep1(i, n) for (ll i = 1; i <= (ll)(n); i++) #define INF 10000000000 #define MOD 1000000007 using ll = long long; using Graph = vector<vector<int>>; int main() { int K; cin >> K; int res = 1; int S = 7; if (K % 2 == 0) { cout << -1 << endl; return 0; } while (S % K != 0) { S = S * 10 + 7; res++; S %= K; if (res > K + 10) { cout << -1 << endl; return 0; } } cout << res << endl; }
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p02596
C++
Time Limit Exceeded
#pragma GCC optimize("O3") #include <bits/stdc++.h> using namespace std; typedef long long int ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pii> vpii; typedef vector<pll> vpll; #define ff first #define ss second #define pb push_back #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define lb lower_bound #define ub upper_bound #define D2(x) \ { \ cerr << "[" << #x << ": "; \ for (auto it : x) \ cerr << it << " "; \ cerr << "]\n"; \ } #define all(x) (x).begin(), (x).end() #define mem(a) memset(a, 0, sizeof a) #define deb(x) cout << #x << " - " << x << "\n"; #define ps(x, y) fixed << setprecision(y) << x #define setbit(x) __builtin_popcount(x) #define deb2(x, y) \ cerr << #x << " :: " << x << "\t" << #y << " :: " << y << "\n" #define rep(i, a, b) for (int i = a; i < b; ++i) #define PI 3.141592653589793 const ll p = 5; const ll INF = 1000000000; const ll MAX_N = 2e5 + 2; void solve() { int k; cin >> k; int res = 7, mod = 9 * k; for (int i = 1;; ++i) { res *= 10; res %= mod; if (res == 7) { cout << i; return; } } cout << "-1"; } int main() { IOS; solve(); }
#pragma GCC optimize("O3") #include <bits/stdc++.h> using namespace std; typedef long long int ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pii> vpii; typedef vector<pll> vpll; #define ff first #define ss second #define pb push_back #define IOS \ ios_base::sync_with_stdio(false); \ cin.tie(NULL); \ cout.tie(NULL); #define lb lower_bound #define ub upper_bound #define D2(x) \ { \ cerr << "[" << #x << ": "; \ for (auto it : x) \ cerr << it << " "; \ cerr << "]\n"; \ } #define all(x) (x).begin(), (x).end() #define mem(a) memset(a, 0, sizeof a) #define deb(x) cout << #x << " - " << x << "\n"; #define ps(x, y) fixed << setprecision(y) << x #define setbit(x) __builtin_popcount(x) #define deb2(x, y) \ cerr << #x << " :: " << x << "\t" << #y << " :: " << y << "\n" #define rep(i, a, b) for (int i = a; i < b; ++i) #define PI 3.141592653589793 const ll p = 5; const ll INF = 1000000000; const ll MAX_N = 2e5 + 2; void solve() { int k; cin >> k; int res = 7, mod = 9 * k; for (int i = 1; i <= 2000000; ++i) { res *= 10; res %= mod; if (res == 7) { cout << i; return; } } cout << "-1"; } int main() { IOS; solve(); }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { long long n, res, count = 1; cin >> n; if (n % 2 == 0 || n % 5 == 0) count = -1; else { string s = "7"; stringstream(s) >> res; while (res % n != 0) { s += "7"; stringstream(s) >> res; count++; } } cout << count << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { long long n, res, count = 1; cin >> n; if (n % 2 == 0 || n % 5 == 0) count = -1; else { long long m = 7 % n; while (m != 0) { m = (m * 10 + 7) % n; count++; } } cout << count << "\n"; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0), cout.tie(0); int k; cin >> k; if (k % 2 == 0) { cout << -1; return 0; } if (k % 7 == 0) k /= 7; int p = 1; int m = 0; int cnt = 0; do { m += p; m %= k; p *= 10; p %= k; ++cnt; } while (m); cout << cnt; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0), cout.tie(0); int k; cin >> k; if (k % 2 == 0 or k % 5 == 0) { cout << -1; return 0; } if (k % 7 == 0) k /= 7; int p = 1; int m = 0; int cnt = 0; do { m += p; m %= k; p *= 10; p %= k; ++cnt; } while (m); cout << cnt; return 0; }
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p02596
C++
Time Limit Exceeded
/** * code generated by JHelper * More info: https://github.com/AlexeyDmitriev/JHelper * @author rchalamala */ /* ID: rchalam1 LANG: C++14 TASK: */ // For train.usaco.org, fill the template above. // Competitive Coding Template // GCC OPTIMIAZTION FLAGS #ifndef LOCAL #include <x86intrin.h> #pragma GCC optimize( \ "fast-math,no-stack-protector,Ofast,omit-frame-pointer,unroll-loops,inline") #pragma GCC option("arch=native,no-zero-upper,tune=native") #pragma GCC target("abm,avx,avx2,bmi2,fma,mmx,popcnt,sse,sse2,sse3,sse4,ssse3") #endif #ifndef GENERAL_HPP #define GENERAL_HPP #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <chrono> #include <climits> #include <cmath> #include <complex> #include <cstdarg> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctime> #include <deque> #include <exception> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #include <ext/rope> #include <forward_list> #include <fstream> #include <functional> #include <initializer_list> #include <iomanip> #include <ios> #include <iostream> #include <iterator> #include <limits> #include <list> #include <map> #include <mutex> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <stdexcept> #include <string> #include <thread> #include <tuple> #include <typeinfo> #include <unordered_map> #include <unordered_set> #include <utility> #include <valarray> #include <vector> using namespace __gnu_pbds; using namespace __gnu_cxx; template <typename T> using ordered_set = __gnu_pbds::tree<T, __gnu_pbds::null_type, std::less<T>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; using ui = unsigned int; using ul = unsigned long long; using ll = long long; using ld = long double; using cd = std::complex<long double>; using pui = std::pair<unsigned int, unsigned int>; using pii = std::pair<int, int>; using pul = std::pair<unsigned long long, unsigned long long>; using pll = std::pair<long long, long long>; using pld = std::pair<long double, long double>; using pcd = std::pair<std::complex<long double>, std::complex<long double>>; using vui = std::vector<unsigned int>; using vii = std::vector<int>; using vul = std::vector<unsigned long long>; using vll = std::vector<long long>; using vld = std::vector<long double>; using vcd = std::vector<std::complex<long double>>; using vpui = std::vector<std::pair<unsigned int, unsigned int>>; using vpii = std::vector<std::pair<int, int>>; using vpul = std::vector<std::pair<unsigned long long, unsigned long long>>; using vpll = std::vector<std::pair<long long, long long>>; using vpld = std::vector<std::pair<long double, long double>>; using vpcd = std::vector< std::pair<std::complex<long double>, std::complex<long double>>>; #define FOR(i, a, b) for (auto(i) = (a); (i) < (b); ++(i)) #define F0R(i, a) FOR((i), 0, (a)) #define ROF(i, a, b) for (auto(i) = (a); (i) >= (b); --(i)) #define R0F(i, a) ROF((i), (a), 0) #define ITR(i, begin, end) \ for (__typeof(end) i = (begin) - ((begin) > (end)); \ i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end))) #define FSRT(set) std::sort((set).begin(), (set).end()) #define RSRT(set) std::sort((set).rbegin(), (set).rend()) #define CSRT(set, function) std::sort((set).begin(), (set).end(), (function)) #define UNIQUE(set) \ std::sort((set).begin(), (set).end()), \ (set).erase(std::unique((set).begin(), (set.end())), (a).end()) #define ALL(set) (set).begin(), (set).end() #define RALL(set) (set).rbegin(), (set).rend() #define mp std::make_pair #define mt std::make_tuple #define pb push_back #define eb emplace_back #define ff first #define ss second #define lb lower_bound #define ub upper_bound #endif #ifndef IO_HPP #define IO_HPP // https://github.com/bqi343/USACO/blob/master/Implementations/content/contest/CppIO.h namespace std { std::string to_string(const char &element) { return std::string(1, element); } std::string to_string(const char *element) { return std::string(element); } std::string to_string(const std::string &element) { return element; } std::string to_string(const bool &element) { #ifdef LOCAL return element ? "true" : "false"; #else return std::string{static_cast<char>('0' + element)}; #endif } template <typename T> std::string to_string(const std::complex<T> &element) { std::stringstream convert; convert << element; return convert.str(); } std::string to_string(const std::vector<bool> &elements) { std::string convert = "{"; for (const auto &element : elements) convert += static_cast<char>('0' + element); return convert + "}"; } template <std::size_t Size> std::string to_string(const std::bitset<Size> &elements) { std::string convert; for (auto i = 0; i < Size; ++i) convert += static_cast<char>('0' + elements[i]); return convert; } template <typename T1, typename T2> std::string to_string(std::pair<T1, T2> element) { #ifdef LOCAL return "(" + std::to_string(element.first) + ", " + std::to_string(element.second) + ")"; #else return std::to_string(element.ff) + " " + std::to_string(element.ss); #endif } template <typename T> std::string to_string(const T &elements) { std::string convert; bool first = true; #ifdef LOCAL convert += "{"; for (const auto &element : elements) { if (!first) convert += ", "; first = false; convert += std::to_string(element); } convert += "}"; #else for (const auto &element : elements) { if (!first) convert += " "; first = false; convert += std::to_string(element); } #endif return convert; } } // namespace std // INPUT template <typename Arg, typename... Args> void read(std::istream &in, Arg &first, Args &...rest); template <typename T1, typename T2> void read(std::istream &in, std::pair<T1, T2> &element); template <typename T, std::size_t Size> void read(std::istream &in, std::array<T, Size> &elements); template <typename T> void read(std::istream &in, double &element); template <typename T> void read(std::istream &in, long double &element); template <typename T> void read(std::istream &in, std::complex<T> &element); template <typename T> void read(std::istream &in, std::vector<T> &elements); template <typename T> void read(std::istream &in, T &element); template <typename Arg, typename... Args> void read(std::istream &in, Arg &first, Args &...rest) { read(in, first); read(in, rest...); } template <typename T1, typename T2> void read(std::istream &in, std::pair<T1, T2> &element) { read(in, element.first, element.second); } template <typename T, std::size_t Size> void read(std::istream &in, std::array<T, Size> &elements) { for (auto &element : elements) read(in, element); } void read(std::istream &in, double &element) { std::string convert; read(in, convert); element = std::stod(convert); } void read(std::istream &in, long double &element) { std::string convert; read(in, convert); element = std::stold(convert); } template <typename T> void read(std::istream &in, std::complex<T> &element) { T first, second; read(in, first, second); element = std::complex<T>(first, second); } template <typename T> void read(std::istream &in, std::vector<T> &elements) { for (auto &element : elements) read(in, element); } template <typename T> void read(std::istream &in, T &element) { in >> element; } // OUTPUT template <typename Arg, typename... Args> void print(std::ostream &out, const Arg &first, const Args &...rest); template <typename Arg, typename... Args> void prints(std::ostream &out, const Arg &first, const Args &...rest); template <typename T> void print(std::ostream &out, const T &element); void prints(std::ostream &out); template <typename Arg, typename... Args> void print(std::ostream &out, const Arg &first, const Args &...rest) { print(out, first); print(out, rest...); } template <typename Arg, typename... Args> void prints(std::ostream &out, const Arg &first, const Args &...rest) { print(out, first); if (sizeof...(rest)) print(out, " "); prints(out, rest...); } template <typename T> void print(std::ostream &out, const T &element) { out << std::to_string(element); } void prints(std::ostream &out) { print(out, '\n'); } void setIO() { std::ios_base::sync_with_stdio(false); std::cin.tie(nullptr); std::cout.tie(nullptr); #ifdef LOCAL std::cin.exceptions(std::ios::eofbit | std::ios::failbit | std::ios::badbit); #endif } #endif using namespace std; constexpr long long MAXN __attribute__((unused)) = static_cast<long long>(2 * 1e5 + 1); constexpr long long INF __attribute__((unused)) = static_cast<long long>(1e18 + 1); constexpr long long MOD __attribute__((unused)) = static_cast<long long>(1e9 + 7); constexpr long double EPS __attribute__((unused)) = static_cast<long double>(1e-7); class CRepsept { public: void solve(std::istream &in, std::ostream &out) { ll k; read(in, k); if (k % 2 == 0) prints(out, -1); else { ll answer = 1, n = 7; while (true) { if (n % k == 0) { prints(out, answer); return; } ++answer; ((n *= 10) += 7) %= k; } } } }; int main() { setIO(); CRepsept solver; std::istream &in(std::cin); std::ostream &out(std::cout); solver.solve(in, out); std::fflush(stdout); return 0; }
/** * code generated by JHelper * More info: https://github.com/AlexeyDmitriev/JHelper * @author rchalamala */ /* ID: rchalam1 LANG: C++14 TASK: */ // For train.usaco.org, fill the template above. // Competitive Coding Template // GCC OPTIMIAZTION FLAGS #ifndef LOCAL #include <x86intrin.h> #pragma GCC optimize( \ "fast-math,no-stack-protector,Ofast,omit-frame-pointer,unroll-loops,inline") #pragma GCC option("arch=native,no-zero-upper,tune=native") #pragma GCC target("abm,avx,avx2,bmi2,fma,mmx,popcnt,sse,sse2,sse3,sse4,ssse3") #endif #ifndef GENERAL_HPP #define GENERAL_HPP #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <chrono> #include <climits> #include <cmath> #include <complex> #include <cstdarg> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctime> #include <deque> #include <exception> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #include <ext/rope> #include <forward_list> #include <fstream> #include <functional> #include <initializer_list> #include <iomanip> #include <ios> #include <iostream> #include <iterator> #include <limits> #include <list> #include <map> #include <mutex> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <stdexcept> #include <string> #include <thread> #include <tuple> #include <typeinfo> #include <unordered_map> #include <unordered_set> #include <utility> #include <valarray> #include <vector> using namespace __gnu_pbds; using namespace __gnu_cxx; template <typename T> using ordered_set = __gnu_pbds::tree<T, __gnu_pbds::null_type, std::less<T>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; using ui = unsigned int; using ul = unsigned long long; using ll = long long; using ld = long double; using cd = std::complex<long double>; using pui = std::pair<unsigned int, unsigned int>; using pii = std::pair<int, int>; using pul = std::pair<unsigned long long, unsigned long long>; using pll = std::pair<long long, long long>; using pld = std::pair<long double, long double>; using pcd = std::pair<std::complex<long double>, std::complex<long double>>; using vui = std::vector<unsigned int>; using vii = std::vector<int>; using vul = std::vector<unsigned long long>; using vll = std::vector<long long>; using vld = std::vector<long double>; using vcd = std::vector<std::complex<long double>>; using vpui = std::vector<std::pair<unsigned int, unsigned int>>; using vpii = std::vector<std::pair<int, int>>; using vpul = std::vector<std::pair<unsigned long long, unsigned long long>>; using vpll = std::vector<std::pair<long long, long long>>; using vpld = std::vector<std::pair<long double, long double>>; using vpcd = std::vector< std::pair<std::complex<long double>, std::complex<long double>>>; #define FOR(i, a, b) for (auto(i) = (a); (i) < (b); ++(i)) #define F0R(i, a) FOR((i), 0, (a)) #define ROF(i, a, b) for (auto(i) = (a); (i) >= (b); --(i)) #define R0F(i, a) ROF((i), (a), 0) #define ITR(i, begin, end) \ for (__typeof(end) i = (begin) - ((begin) > (end)); \ i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end))) #define FSRT(set) std::sort((set).begin(), (set).end()) #define RSRT(set) std::sort((set).rbegin(), (set).rend()) #define CSRT(set, function) std::sort((set).begin(), (set).end(), (function)) #define UNIQUE(set) \ std::sort((set).begin(), (set).end()), \ (set).erase(std::unique((set).begin(), (set.end())), (a).end()) #define ALL(set) (set).begin(), (set).end() #define RALL(set) (set).rbegin(), (set).rend() #define mp std::make_pair #define mt std::make_tuple #define pb push_back #define eb emplace_back #define ff first #define ss second #define lb lower_bound #define ub upper_bound #endif #ifndef IO_HPP #define IO_HPP // https://github.com/bqi343/USACO/blob/master/Implementations/content/contest/CppIO.h namespace std { std::string to_string(const char &element) { return std::string(1, element); } std::string to_string(const char *element) { return std::string(element); } std::string to_string(const std::string &element) { return element; } std::string to_string(const bool &element) { #ifdef LOCAL return element ? "true" : "false"; #else return std::string{static_cast<char>('0' + element)}; #endif } template <typename T> std::string to_string(const std::complex<T> &element) { std::stringstream convert; convert << element; return convert.str(); } std::string to_string(const std::vector<bool> &elements) { std::string convert = "{"; for (const auto &element : elements) convert += static_cast<char>('0' + element); return convert + "}"; } template <std::size_t Size> std::string to_string(const std::bitset<Size> &elements) { std::string convert; for (auto i = 0; i < Size; ++i) convert += static_cast<char>('0' + elements[i]); return convert; } template <typename T1, typename T2> std::string to_string(std::pair<T1, T2> element) { #ifdef LOCAL return "(" + std::to_string(element.first) + ", " + std::to_string(element.second) + ")"; #else return std::to_string(element.ff) + " " + std::to_string(element.ss); #endif } template <typename T> std::string to_string(const T &elements) { std::string convert; bool first = true; #ifdef LOCAL convert += "{"; for (const auto &element : elements) { if (!first) convert += ", "; first = false; convert += std::to_string(element); } convert += "}"; #else for (const auto &element : elements) { if (!first) convert += " "; first = false; convert += std::to_string(element); } #endif return convert; } } // namespace std // INPUT template <typename Arg, typename... Args> void read(std::istream &in, Arg &first, Args &...rest); template <typename T1, typename T2> void read(std::istream &in, std::pair<T1, T2> &element); template <typename T, std::size_t Size> void read(std::istream &in, std::array<T, Size> &elements); template <typename T> void read(std::istream &in, double &element); template <typename T> void read(std::istream &in, long double &element); template <typename T> void read(std::istream &in, std::complex<T> &element); template <typename T> void read(std::istream &in, std::vector<T> &elements); template <typename T> void read(std::istream &in, T &element); template <typename Arg, typename... Args> void read(std::istream &in, Arg &first, Args &...rest) { read(in, first); read(in, rest...); } template <typename T1, typename T2> void read(std::istream &in, std::pair<T1, T2> &element) { read(in, element.first, element.second); } template <typename T, std::size_t Size> void read(std::istream &in, std::array<T, Size> &elements) { for (auto &element : elements) read(in, element); } void read(std::istream &in, double &element) { std::string convert; read(in, convert); element = std::stod(convert); } void read(std::istream &in, long double &element) { std::string convert; read(in, convert); element = std::stold(convert); } template <typename T> void read(std::istream &in, std::complex<T> &element) { T first, second; read(in, first, second); element = std::complex<T>(first, second); } template <typename T> void read(std::istream &in, std::vector<T> &elements) { for (auto &element : elements) read(in, element); } template <typename T> void read(std::istream &in, T &element) { in >> element; } // OUTPUT template <typename Arg, typename... Args> void print(std::ostream &out, const Arg &first, const Args &...rest); template <typename Arg, typename... Args> void prints(std::ostream &out, const Arg &first, const Args &...rest); template <typename T> void print(std::ostream &out, const T &element); void prints(std::ostream &out); template <typename Arg, typename... Args> void print(std::ostream &out, const Arg &first, const Args &...rest) { print(out, first); print(out, rest...); } template <typename Arg, typename... Args> void prints(std::ostream &out, const Arg &first, const Args &...rest) { print(out, first); if (sizeof...(rest)) print(out, " "); prints(out, rest...); } template <typename T> void print(std::ostream &out, const T &element) { out << std::to_string(element); } void prints(std::ostream &out) { print(out, '\n'); } void setIO() { std::ios_base::sync_with_stdio(false); std::cin.tie(nullptr); std::cout.tie(nullptr); #ifdef LOCAL std::cin.exceptions(std::ios::eofbit | std::ios::failbit | std::ios::badbit); #endif } #endif using namespace std; constexpr long long MAXN __attribute__((unused)) = static_cast<long long>(2 * 1e5 + 1); constexpr long long INF __attribute__((unused)) = static_cast<long long>(1e18 + 1); constexpr long long MOD __attribute__((unused)) = static_cast<long long>(1e9 + 7); constexpr long double EPS __attribute__((unused)) = static_cast<long double>(1e-7); class CRepsept { public: void solve(std::istream &in, std::ostream &out) { ll k; read(in, k); if (k % 2 == 0 || k % 5 == 0) prints(out, -1); else { ll answer = 1, n = 7; while (true) { if (n % k == 0) { prints(out, answer); return; } ++answer; ((n *= 10) += 7) %= k; } } } }; int main() { setIO(); CRepsept solver; std::istream &in(std::cin); std::ostream &out(std::cout); solver.solve(in, out); std::fflush(stdout); return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ll k; cin >> k; if (k % 2 == 0) { cout << -1 << endl; return 0; } bool flag = true; ll rem = 7; ll ans = 1; while (flag) { rem = rem % k; if (rem == 0) { flag = false; } else { rem = rem * 10 + 7; ans++; } } cout << ans << endl; }
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ll k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } bool flag = true; ll rem = 7; ll ans = 1; while (flag) { rem = rem % k; if (rem == 0) { flag = false; } else { rem = rem * 10 + 7; ans++; } } cout << ans << endl; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { int k; cin >> k; int n = 7 % k; if (!(k % 2)) cout << "-1" << endl; else { for (int cnt = 1;;) { if (!n) { cout << cnt << endl; break; } n = (n * 10 + 7) % k; cnt++; } } return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int k; cin >> k; int n = 7 % k; if (!(k % 2) || !(k % 5)) cout << "-1" << endl; else { for (int cnt = 1;;) { if (!n) { cout << cnt << endl; break; } n = (n * 10 + 7) % k; cnt++; } } return 0; }
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p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define IOS \ ios::sync_with_stdio(false); \ cin.tie(0); #define st first #define nd second #define endl '\n' #define what_is(x) cerr << #x << " is " << x << endl; #define what_is_v(x) \ cerr << #x << " is "; \ for (auto &e : (x)) \ cerr << e << ' '; \ cerr << '\n'; // vector, set #define what_is_a(x, n) \ cerr << #x << " is "; \ for (int i = 0; i < n; i++) \ cerr << x[i] << ' '; \ cerr << '\n'; // n first element of array #define cerr_pair(x) '{' << x.st << ", " << x.nd << '}' #define pwhat_is(x) cerr << #x << " is " << cerr_pair(x) << endl; #define pwhat_is_v(x) \ cerr << #x << " is "; \ for (auto &e : (x)) \ cerr << cerr_pair(e) << ' '; \ cerr << '\n'; // vector, set #define pwhat_is_a(x, n) \ cerr << #x << " is "; \ for (int i = 0; i < n; i++) \ cerr << cerr_pair(x[i]) << ' '; \ cerr << '\n'; // n first element of array // #define int long long // #define pow mypow typedef pair<int, int> pii; const int N = 1e5 + 5; const int INF = 1e9 + 5; const int MOD = 1e9 + 7; int k; int32_t main() { IOS // freopen("input.txt", "r", stdin); cin >> k; if (k % 7 == 0) k /= 7; int ans = 1; int r = 1 % k; while (r != 0) { r = (10 * r + 1) % k; ans++; } cout << ans << endl; return 0; }
#include <bits/stdc++.h> using namespace std; #define IOS \ ios::sync_with_stdio(false); \ cin.tie(0); #define st first #define nd second #define endl '\n' #define what_is(x) cerr << #x << " is " << x << endl; #define what_is_v(x) \ cerr << #x << " is "; \ for (auto &e : (x)) \ cerr << e << ' '; \ cerr << '\n'; // vector, set #define what_is_a(x, n) \ cerr << #x << " is "; \ for (int i = 0; i < n; i++) \ cerr << x[i] << ' '; \ cerr << '\n'; // n first element of array #define cerr_pair(x) '{' << x.st << ", " << x.nd << '}' #define pwhat_is(x) cerr << #x << " is " << cerr_pair(x) << endl; #define pwhat_is_v(x) \ cerr << #x << " is "; \ for (auto &e : (x)) \ cerr << cerr_pair(e) << ' '; \ cerr << '\n'; // vector, set #define pwhat_is_a(x, n) \ cerr << #x << " is "; \ for (int i = 0; i < n; i++) \ cerr << cerr_pair(x[i]) << ' '; \ cerr << '\n'; // n first element of array // #define int long long // #define pow mypow typedef pair<int, int> pii; const int N = 1e5 + 5; const int INF = 1e9 + 5; const int MOD = 1e9 + 7; int k; int32_t main() { IOS // freopen("input.txt", "r", stdin); cin >> k; if (k % 7 == 0) k /= 7; if (__gcd(10, k) != 1) return 0 * puts("-1"); int ans = 1; int r = 1 % k; while (r != 0) { r = (10 * r + 1) % k; ans++; } cout << ans << endl; return 0; }
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p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long ll; ll k, num = 0, cnt = 0; int main() { while (cnt <= k) { num = (num * 10 + 7) % k; cnt++; if (!num) { cout << cnt; return 0; } } cout << "-1"; return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; ll k, num = 0, cnt = 0; int main() { cin >> k; while (cnt <= k) { num = (num * 10 + 7) % k; cnt++; if (!num) { cout << cnt; return 0; } } cout << "-1"; return 0; }
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p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; #define int long long int int32_t main() { int k, i, ans = -1, tmp = 0; for (i = 1; i <= k + 100; i++) { tmp = tmp * 10 + 7; tmp %= k; if (!tmp) { ans = i; break; } } cout << ans; return 0; }
#include <bits/stdc++.h> using namespace std; #define int long long int int32_t main() { int k, i, ans = -1, tmp = 0; cin >> k; for (i = 1; i <= k + 100; i++) { tmp = tmp * 10 + 7; tmp %= k; if (!tmp) { ans = i; break; } } cout << ans; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <iostream> using namespace std; int main(void) { long long K; cin >> K; if (K % 2 == 0) cout << -1 << endl; else { long long ans = 1; long long mod = 7 % K; while (mod != 0) { ans++; mod = (mod * 10 + 7) % K; } cout << ans << endl; } return 0; }
#include <iostream> using namespace std; int main(void) { long long K; cin >> K; if (K % 2 == 0) cout << -1 << endl; else { long long ans = 1; long long mod = 7 % K; while (mod != 0) { ans++; mod = (mod * 10 + 7) % K; if (ans > 1000000) { cout << -1 << endl; return 0; } } cout << ans << endl; } return 0; }
insert
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19
TLE
p02596
C++
Time Limit Exceeded
#include <iostream> #include <math.h> #include <string> #include <vector> using namespace std; int main() { long long k; cin >> k; long long i = 0; long long val = 0; long long first = -1; while (true) { i++; val = val * 10 + 7; long long rem = val % k; if (rem == 0) { break; } if (first == rem) { i = -1; break; } if (first < 0) { first = rem; } val = rem; } cout << i << endl; return 0; }
#include <iostream> #include <math.h> #include <string> #include <vector> using namespace std; int main() { long long k; cin >> k; long long i = 0; long long val = 0; long long first = -1; while (true) { i++; val = val * 10 + 7; long long rem = val % k; if (rem == 0) { break; } if (first == rem) { i = -1; break; } if (i > 2 * k) { i = -1; break; } val = rem; } cout << i << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define ll long long #define L long #define endl "\n" #define ___ \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); using namespace std; const int N = (int)1e5; int main() { #ifndef ONLINE_JUDGE freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif ___ ll int n = 0, k, x = 0; cin >> k; if (k % 2 == 0) { cout << -1; return 0; } while (1) { n = ((n * 10) + 7) % k; x++; if (n == 0) break; else if (x == (int)2e8) { cout << -1; return 0; } } cout << x; return 0; }
#include <bits/stdc++.h> #define ll long long #define L long #define endl "\n" #define ___ \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); using namespace std; const int N = (int)1e5; int main() { #ifndef ONLINE_JUDGE freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); #endif ___ ll int n = 0, k, x = 0; cin >> k; if (k % 2 == 0) { cout << -1; return 0; } while (1) { n = ((n * 10) + 7) % k; x++; if (n == 0) break; else if (x == (int)1e8 + (int)1e7) { cout << -1; return 0; } } cout << x; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
/* Author : Chandan Agrawal College : Poornima College of Engg. jaipur, Raj Mail : chandanagrawal23@gmail.com " when you are not practicing someone else is , and the day u meet them u will lose " */ #include <bits/stdc++.h> #include <stdio.h> using namespace std; #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define MAX 200050 #define ll long long #define ld long double #define lli long long int #define pb push_back #define INF 1000000000000 #define mod 1000000007 // trignometric function always give value in Radians only #define PI acos(-1) // 3.1415926535897932384626433832795028 #define dsin(degree) sin(degree *(PI / 180.0)) #define dcos(degree) cos(degree *(PI / 180.0)) #define dtan(degree) tan(degree *(PI / 180.0)) #define rsin(radian) sin(radian) #define rcos(radian) cos(radian) #define rtan(radian) tan(radian) #define mem0(a) memset(a, 0, sizeof(a)) #define mem1(a) memset(a, -1, sizeof(a)) #define loop(i, n) for (lli i = 0; i < n; i++) #define FOR(i, a, b) for (lli i = a; i < b; i += 1) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define sz(x) int(x.size()) #define F first #define S second #define mii map<lli, lli> #define mci map<char, lli> #define vi vector<lli> #define vbool vector<bool> #define seti set<lli> #define pii pair<lli, lli> #define pcc pair<char, char> #define gcd(a, b) __gcd((a), (b)) #define lcm(a, b) (a / gcd(a, b)) * b #define abs(x) ((x < 0) ? -(x) : x) #define endl '\n' template <typename T> void print(T x) { cout << x << endl; } template <typename T1, typename T2> void print2(T1 x, T2 y) { cout << x << " " << y << endl; } template <typename T1, typename T2, typename T3> void print3(T1 x, T2 y, T3 z) { cout << x << " " << y << " " << z << endl; } #define scanarr(a, n) \ for (lli i = 0; i < n; i++) \ cin >> a[i]; #define scanvec(a, n) \ for (lli i = 0; i < n; i++) { \ lli x; \ cin >> x; \ a.pb(x); \ } #define printarr(a, n) \ for (lli i = 0; i < n; i++) \ cout << a[i] << " "; \ cout << endl; #define printvec(vec) \ for (auto xt : vec) \ cout << xt << " "; \ cout << "\n"; #define FD(N) fixed << setprecision(N) #define deb(x) cout << #x << " " << x << endl; // chandan1,2 void chandan1() { int y = 1; return; } void chandan2() { loop(i, 10) { lli x = 1; } return (chandan1()); } int main() { fastio lli t = 1; // cin>>t; chandan2(); while (t--) { lli k; cin >> k; if (k % 2 == 0) print(-1); else { lli ans = 0; lli cnt = 0; while (true) { ans = ans * 10 + 7; ans %= k; cnt++; if (ans == 0) break; } print(cnt); } } return 0; }
/* Author : Chandan Agrawal College : Poornima College of Engg. jaipur, Raj Mail : chandanagrawal23@gmail.com " when you are not practicing someone else is , and the day u meet them u will lose " */ #include <bits/stdc++.h> #include <stdio.h> using namespace std; #define fastio \ ios_base::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); #define MAX 200050 #define ll long long #define ld long double #define lli long long int #define pb push_back #define INF 1000000000000 #define mod 1000000007 // trignometric function always give value in Radians only #define PI acos(-1) // 3.1415926535897932384626433832795028 #define dsin(degree) sin(degree *(PI / 180.0)) #define dcos(degree) cos(degree *(PI / 180.0)) #define dtan(degree) tan(degree *(PI / 180.0)) #define rsin(radian) sin(radian) #define rcos(radian) cos(radian) #define rtan(radian) tan(radian) #define mem0(a) memset(a, 0, sizeof(a)) #define mem1(a) memset(a, -1, sizeof(a)) #define loop(i, n) for (lli i = 0; i < n; i++) #define FOR(i, a, b) for (lli i = a; i < b; i += 1) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define sz(x) int(x.size()) #define F first #define S second #define mii map<lli, lli> #define mci map<char, lli> #define vi vector<lli> #define vbool vector<bool> #define seti set<lli> #define pii pair<lli, lli> #define pcc pair<char, char> #define gcd(a, b) __gcd((a), (b)) #define lcm(a, b) (a / gcd(a, b)) * b #define abs(x) ((x < 0) ? -(x) : x) #define endl '\n' template <typename T> void print(T x) { cout << x << endl; } template <typename T1, typename T2> void print2(T1 x, T2 y) { cout << x << " " << y << endl; } template <typename T1, typename T2, typename T3> void print3(T1 x, T2 y, T3 z) { cout << x << " " << y << " " << z << endl; } #define scanarr(a, n) \ for (lli i = 0; i < n; i++) \ cin >> a[i]; #define scanvec(a, n) \ for (lli i = 0; i < n; i++) { \ lli x; \ cin >> x; \ a.pb(x); \ } #define printarr(a, n) \ for (lli i = 0; i < n; i++) \ cout << a[i] << " "; \ cout << endl; #define printvec(vec) \ for (auto xt : vec) \ cout << xt << " "; \ cout << "\n"; #define FD(N) fixed << setprecision(N) #define deb(x) cout << #x << " " << x << endl; // chandan1,2 void chandan1() { int y = 1; return; } void chandan2() { loop(i, 10) { lli x = 1; } return (chandan1()); } int main() { fastio lli t = 1; // cin>>t; chandan2(); while (t--) { lli k; cin >> k; if (k % 2 == 0 or k % 5 == 0) print(-1); else { lli ans = 0; lli cnt = 0; while (true) { ans = ans * 10 + 7; ans %= k; cnt++; if (ans == 0) break; } print(cnt); } } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define fs first #define sc second #define pb push_back #define mp make_pair #define eb emplace_back #define ALL(A) A.begin(), A.end() #define RALL(A) A.rbegin(), A.rend() typedef long long ll; typedef pair<ll, ll> P; const ll mod = 1000000007; const ll LINF = 1LL << 60; const int INF = 1 << 30; template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } ll k; ll mod_pow(ll x, ll n) { ll res = 1; while (n > 0) { if (n & 1) { res = res * x % (k * 9); } x = x * x % (k * 9); n >>= 1; } return res; } int main() { cin >> k; for (int i = 1; i <= 9 * k; i++) { // cout << i << endl; if (7 * ((mod_pow(10, i) - 1)) % (9 * k) == 0) { cout << i << endl; return 0; } } cout << -1 << endl; return 0; }
#include <bits/stdc++.h> using namespace std; #define fs first #define sc second #define pb push_back #define mp make_pair #define eb emplace_back #define ALL(A) A.begin(), A.end() #define RALL(A) A.rbegin(), A.rend() typedef long long ll; typedef pair<ll, ll> P; const ll mod = 1000000007; const ll LINF = 1LL << 60; const int INF = 1 << 30; template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } ll k; ll mod_pow(ll x, ll n) { ll res = 1; while (n > 0) { if (n & 1) { res = res * x % (k * 9); } x = x * x % (k * 9); n >>= 1; } return res; } int main() { cin >> k; for (int i = 1; i <= k; i++) { // cout << i << endl; if (7 * ((mod_pow(10, i) - 1)) % (9 * k) == 0) { cout << i << endl; return 0; } } cout << -1 << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define pb push_back #define fori(j, n) for (int i = j; i < n; i++) #define forj(i, n) for (int j = i; j < n; j++) #define fork(i, n) for (int k = i; k < n; k++) #define ppb pop_back() #define umap unordered_map #define uset unordered_set #define lli long long int using namespace std; void solve() { lli k; cin >> k; if (k % 2 == 0) { cout << -1; return; } lli ans = 0; int cnt = 0; while (1) { cnt++; ans = (ans * 10 + 7) % k; if (ans == 0) break; } cout << cnt; } int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); // int t;cin>>t; // while(t--) // { solve(); // cout<<endl; // } return 0; }
#include <bits/stdc++.h> #define pb push_back #define fori(j, n) for (int i = j; i < n; i++) #define forj(i, n) for (int j = i; j < n; j++) #define fork(i, n) for (int k = i; k < n; k++) #define ppb pop_back() #define umap unordered_map #define uset unordered_set #define lli long long int using namespace std; void solve() { lli k; cin >> k; if (k % 2 == 0 or k % 5 == 0) { cout << -1; return; } lli ans = 0; int cnt = 0; while (1) { cnt++; ans = (ans * 10 + 7) % k; if (ans == 0) break; } cout << cnt; } int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); // int t;cin>>t; // while(t--) // { solve(); // cout<<endl; // } return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include "bits/stdc++.h" using namespace std; #define IOS \ { \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); \ } #define ll long long ll powermod(ll x, ll ex, ll md) { ll ans = 1ll; while (ex > 0) { if (ex & 1ll) ans = (ans * x) % md; ex >>= 1ll; x = (x * x) % md; } return ans; } int main() { IOS; ll n; cin >> n; // vector<ll> factor; // for(ll i=1;i*i<=n;++i){ // if(n%i==0){ // ll div1=i,div2=n/i; // factor.push_back(div1); // if(div1 != div2) factor.push_back(div2); // } // } // for(ll i=0;i<(int)(factor.size());i++) cout << factor[i] <<" "; ll ans = -1; if (n == 7) { cout << 1 << "\n"; return 0; } else if (n % 2 == 0) { cout << -1 << "\n"; return 0; } n *= 9; for (ll i = 1; i <= 1e7; i++) { ll b = 3; ll a = powermod(10, i, n); a %= n; (a) = (a - 1 + n) % n; a = ((a % n) * 7) % n; if (a == 0) { ans = i; break; } } if (ans != -1) cout << ans << "\n"; else cout << -1 << "\n"; }
#include "bits/stdc++.h" using namespace std; #define IOS \ { \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); \ } #define ll long long ll powermod(ll x, ll ex, ll md) { ll ans = 1ll; while (ex > 0) { if (ex & 1ll) ans = (ans * x) % md; ex >>= 1ll; x = (x * x) % md; } return ans; } int main() { IOS; ll n; cin >> n; // vector<ll> factor; // for(ll i=1;i*i<=n;++i){ // if(n%i==0){ // ll div1=i,div2=n/i; // factor.push_back(div1); // if(div1 != div2) factor.push_back(div2); // } // } // for(ll i=0;i<(int)(factor.size());i++) cout << factor[i] <<" "; ll ans = -1; if (n == 7) { cout << 1 << "\n"; return 0; } else if (n % 2 == 0) { cout << -1 << "\n"; return 0; } n *= 9; for (ll i = 1; i <= 1e6; i++) { ll b = 3; ll a = powermod(10, i, n); a %= n; (a) = (a - 1 + n) % n; a = ((a % n) * 7) % n; if (a == 0) { ans = i; break; } } if (ans != -1) cout << ans << "\n"; else cout << -1 << "\n"; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; int main() { int K; // 入力 cin >> K; int ans = -1; int o; o = K / 10; if (K % 2 != 0 and K % 5 != 0) { for (int i = o; i >= 0; i++) { int seven = 0; for (int j = 0; j <= i; j++) { seven = seven + 7 * pow(10, j); } if (seven % K == 0) { ans = i + 1; break; } } } cout << ans << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int K; // 入力 cin >> K; int ans = -1; int seven = 0; for (int i = 1; i <= 1000001; i++) { seven = 10 * seven % K + 7; if (seven % K == 0) { ans = i; break; } } cout << ans << endl; }
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TLE
p02596
C++
Runtime Error
/* Author:loceaner */ #include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define int long long 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; } int k, a[A]; signed main() { k = read(); for (int i = 1; i <= k; i++) { a[i] = a[i - 1] * 10 + 7; a[i] %= k; if (a[i] == 0) { cout << i << '\n'; return 0; } } cout << -1 << '\n'; }
/* Author:loceaner */ #include <algorithm> #include <cmath> #include <cstdio> #include <cstring> #include <iostream> #define int long long 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; } int k, a[A]; signed main() { k = read(); for (int i = 1; i <= k; i++) { a[i] = a[i - 1] * 10 + 7; a[i] %= k; if (a[i] == 0) { cout << i << '\n'; return 0; } } cout << -1 << '\n'; }
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0
p02596
C++
Runtime Error
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i, a, b) for (int i = (a); i < (b); ++i) using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { int k; cin >> k; bool flag = false; ll l = (k % 7 == 0) ? 9 * k / l : 9 * k; ll n = 1; for (ll i = 1; i <= l; i++) { n = (n % l) * 10 % l; if (n == 1) { cout << i << endl; flag = true; break; } } if (!flag) cout << -1 << endl; return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i, a, b) for (int i = (a); i < (b); ++i) using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { int k; cin >> k; bool flag = false; ll l = (k % 7 == 0) ? 9 * k / 7 : 9 * k; ll n = 1; for (ll i = 1; i <= l; i++) { n = (n % l) * 10 % l; if (n == 1) { cout << i << endl; flag = true; break; } } if (!flag) cout << -1 << endl; return 0; }
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0
p02596
C++
Runtime Error
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ll k; vector<int> v = vector<int>(k, -1); v[0] = 0; ll a = 0; ll idx = 1; while (true) { a = a * 10 + 7; a %= k; if (v[a] != -1) { cout << idx - v[a] << endl; return 0; } else { v[a] = idx; } idx++; } return 0; }
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ll k; cin >> k; if (k % 2 == 0 || k % 5 == 0) { cout << -1 << endl; return 0; } vector<int> v = vector<int>(k, -1); v[0] = 0; ll a = 0; ll idx = 1; while (true) { a = a * 10 + 7; a %= k; if (v[a] != -1) { cout << idx - v[a] << endl; return 0; } else { v[a] = idx; } idx++; } return 0; }
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-6
terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define fi first #define se second #define all(x) (x).begin(), (x).end() #define pb push_back #define endl '\n' typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const int MOD = 1e9 + 7; const int MAXN = 2e5 + 5; ll x; bool chk(int x) { if (x == 0) return 0; while (x) { if (x % 10 != 1) return 0; x /= 10; } return 1; } int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> x; int cnt = 0; ll tmp = 0; if (x % 7 == 0) x /= 7; while (1) { int y = ((11 - tmp % 10) % 10); if (chk(tmp)) { while (tmp) tmp /= 10, cnt++; cout << cnt; return 0; } bool pos = 0; for (int i = 0; i < 10; i++) if (i * x % 10 == y) { tmp += x * i; tmp /= 10; pos = 1; break; } if (pos) cnt++; else { cout << -1; return 0; } } }
#include <bits/stdc++.h> using namespace std; #define fi first #define se second #define all(x) (x).begin(), (x).end() #define pb push_back #define endl '\n' typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const int MOD = 1e9 + 7; const int MAXN = 2e5 + 5; ll x; bool chk(int x) { if (x == 0) return 0; while (x) { if (x % 10 != 1) return 0; x /= 10; } return 1; } int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> x; int cnt = 0; ll tmp = 0; if (x % 7 == 0) x /= 7; if (x == 1) { cout << 1; return 0; } while (1) { int y = ((11 - tmp % 10) % 10); if (chk(tmp)) { while (tmp) tmp /= 10, cnt++; cout << cnt; return 0; } bool pos = 0; for (int i = 0; i < 10; i++) if (i * x % 10 == y) { tmp += x * i; tmp /= 10; pos = 1; break; } if (pos) cnt++; else { cout << -1; return 0; } } }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; int main() { ll n; cin >> n; ll tmp = 7; // ll ans = 0; for (ll i = 1; i < 1000000000; ++i) { if (tmp % n == 0) { cout << i << endl; return 0; } tmp *= 10; tmp += 7; tmp %= n; } cout << -1 << endl; // cout<<ans<<endl; return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; int main() { ll n; cin >> n; ll tmp = 7; // ll ans = 0; for (ll i = 1; i < 100000000; ++i) { if (tmp % n == 0) { cout << i << endl; return 0; } tmp *= 10; tmp += 7; tmp %= n; } cout << -1 << endl; // cout<<ans<<endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; using ll = long long; using P = pair<int, int>; int main() { ll K; cin >> K; if (K % 2 == 0) { cout << -1 << endl; return 0; } ll ans = 1; ll x = 7; x %= K; while (x) { ans++; x = x * 10 + 7; x %= K; } cout << ans << endl; return 0; }
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; using ll = long long; using P = pair<int, int>; int main() { ll K; cin >> K; if (K % 2 == 0 || K % 5 == 0) { cout << -1 << endl; return 0; } ll ans = 1; ll x = 7; x %= K; while (x) { ans++; x = x * 10 + 7; x %= K; } cout << ans << endl; return 0; }
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TLE
p02596
C++
Time Limit Exceeded
#include <bits/stdc++.h> using namespace std; #define int long long #define dub long double #define FOR(i, a, b) for (int i = (a); i < (b); ++i) #define ROF(i, a, b) for (int i = (a); i > (b); --i) #define CASET \ int _T; \ cin >> _T; \ FOR(caset, 1, _T + 1) #define pii pair<int, int> #define t3i tuple<int, int, int> #define mii map<int, int> #define vi vector<int> #define vb vector<bool> #define vs vector<string> #define vvi vector<vi> #define vvb vector<vb> #define vpii vector<pii> #define vt3i vector<t3i> #define vvpii vector<vpii> #define sq(x) (x) * (x) #define inv(x) powa(x, MOD - 2) #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define SIZE(x) (signed)(x).size() #define SUM(x) accumulate(ALL(x), 0LL) long long INF = 1LL << 60; long long MOD = 1e9 + 7; namespace output { void pr(short x) { cout << x; } void pr(signed x) { cout << x; } void pr(long x) { cout << x; } void pr(long long x) { cout << x; } void pr(unsigned short x) { cout << x; } void pr(unsigned x) { cout << x; } void pr(unsigned long x) { cout << x; } void pr(unsigned long long x) { cout << x; } void pr(float x) { cout << x; } void pr(double x) { cout << x; } void pr(long double x) { cout << x; } void pr(char x) { cout << x; } void pr(const char *x) { cout << x; } void pr(const string &x) { cout << x; } void pr(bool x) { cout << x; } template <size_t sz> void pr(const bitset<sz> &x) { cout << x; } template <class T> void pr(const complex<T> &x) { cout << x; } template <class T1, class T2> void pr(const pair<T1, T2> &x); template <class T1, class T2, class T3> void pr(const tuple<T1, T2, T3> &x); template <class T> void pr(const T &x); template <class T, class... Ts> void pr(const T &t, const Ts &...ts) { pr(t); pr(ts...); } template <class T1, class T2> void pr(const pair<T1, T2> &x) { pr("(", x.first, ", ", x.second, ")"); } template <class T1, class T2, class T3> void pr(const tuple<T1, T2, T3> &x) { pr("(", get<0>(x), ", ", get<1>(x), ", ", get<2>(x), ")"); } template <class T> void pr(const T &x) { pr("["); // const iterator needed for vector<bool> bool fst = 1; for (const auto &a : x) pr(!fst ? ", " : "", a), fst = 0; pr("]"); } void print() { pr("\n"); } // print w/ spaces template <class T, class... Ts> void print(const T &t, const Ts &...ts) { pr(t); if (sizeof...(ts)) pr(" "); print(ts...); } } // namespace output using namespace output; template <typename T = int> vector<T> create(size_t n) { return vector<T>(n); } template <typename T, typename... Args> auto create(size_t n, Args... args) { return vector<decltype(create<T>(args...))>(n, create<T>(args...)); } template <class T1, class T2> istream &operator>>(istream &is, pair<T1, T2> &x) { is >> x.first >> x.second; return is; } template <class T1, class T2, class T3> istream &operator>>(istream &is, tuple<T1, T2, T3> &x) { is >> get<0>(x) >> get<1>(x) >> get<2>(x); return is; } template <class T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; } int powa(int base, int exp) { int res = 1; while (exp) { if (exp & 1) res = res * base % MOD; base = base * base % MOD; exp >>= 1; } return res; } bool mini(int &a, int b) { return b < a ? a = b, 1 : 0; } bool maxi(int &a, int b) { return b > a ? a = b, 1 : 0; } const int B = 700; bool cmp(t3i a, t3i b) { int aa = get<0>(a) / B; int bb = get<0>(b) / B; if (aa < bb) return true; if (aa > bb) return false; return get<1>(a) < get<1>(b); } signed main() { ios::sync_with_stdio(0), cin.tie(0); int n; cin >> n; MOD = n; int res = 1; int k = 7 % n; while (k) { k = (k + 7 * powa(10, res) % n) % n; ++res; } print(res); }
#include <bits/stdc++.h> using namespace std; #define int long long #define dub long double #define FOR(i, a, b) for (int i = (a); i < (b); ++i) #define ROF(i, a, b) for (int i = (a); i > (b); --i) #define CASET \ int _T; \ cin >> _T; \ FOR(caset, 1, _T + 1) #define pii pair<int, int> #define t3i tuple<int, int, int> #define mii map<int, int> #define vi vector<int> #define vb vector<bool> #define vs vector<string> #define vvi vector<vi> #define vvb vector<vb> #define vpii vector<pii> #define vt3i vector<t3i> #define vvpii vector<vpii> #define sq(x) (x) * (x) #define inv(x) powa(x, MOD - 2) #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define SIZE(x) (signed)(x).size() #define SUM(x) accumulate(ALL(x), 0LL) long long INF = 1LL << 60; long long MOD = 1e9 + 7; namespace output { void pr(short x) { cout << x; } void pr(signed x) { cout << x; } void pr(long x) { cout << x; } void pr(long long x) { cout << x; } void pr(unsigned short x) { cout << x; } void pr(unsigned x) { cout << x; } void pr(unsigned long x) { cout << x; } void pr(unsigned long long x) { cout << x; } void pr(float x) { cout << x; } void pr(double x) { cout << x; } void pr(long double x) { cout << x; } void pr(char x) { cout << x; } void pr(const char *x) { cout << x; } void pr(const string &x) { cout << x; } void pr(bool x) { cout << x; } template <size_t sz> void pr(const bitset<sz> &x) { cout << x; } template <class T> void pr(const complex<T> &x) { cout << x; } template <class T1, class T2> void pr(const pair<T1, T2> &x); template <class T1, class T2, class T3> void pr(const tuple<T1, T2, T3> &x); template <class T> void pr(const T &x); template <class T, class... Ts> void pr(const T &t, const Ts &...ts) { pr(t); pr(ts...); } template <class T1, class T2> void pr(const pair<T1, T2> &x) { pr("(", x.first, ", ", x.second, ")"); } template <class T1, class T2, class T3> void pr(const tuple<T1, T2, T3> &x) { pr("(", get<0>(x), ", ", get<1>(x), ", ", get<2>(x), ")"); } template <class T> void pr(const T &x) { pr("["); // const iterator needed for vector<bool> bool fst = 1; for (const auto &a : x) pr(!fst ? ", " : "", a), fst = 0; pr("]"); } void print() { pr("\n"); } // print w/ spaces template <class T, class... Ts> void print(const T &t, const Ts &...ts) { pr(t); if (sizeof...(ts)) pr(" "); print(ts...); } } // namespace output using namespace output; template <typename T = int> vector<T> create(size_t n) { return vector<T>(n); } template <typename T, typename... Args> auto create(size_t n, Args... args) { return vector<decltype(create<T>(args...))>(n, create<T>(args...)); } template <class T1, class T2> istream &operator>>(istream &is, pair<T1, T2> &x) { is >> x.first >> x.second; return is; } template <class T1, class T2, class T3> istream &operator>>(istream &is, tuple<T1, T2, T3> &x) { is >> get<0>(x) >> get<1>(x) >> get<2>(x); return is; } template <class T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; } int powa(int base, int exp) { int res = 1; while (exp) { if (exp & 1) res = res * base % MOD; base = base * base % MOD; exp >>= 1; } return res; } bool mini(int &a, int b) { return b < a ? a = b, 1 : 0; } bool maxi(int &a, int b) { return b > a ? a = b, 1 : 0; } const int B = 700; bool cmp(t3i a, t3i b) { int aa = get<0>(a) / B; int bb = get<0>(b) / B; if (aa < bb) return true; if (aa > bb) return false; return get<1>(a) < get<1>(b); } signed main() { ios::sync_with_stdio(0), cin.tie(0); int n; cin >> n; if (n % 2 == 0 || n % 5 == 0) { print(-1); exit(0); } MOD = n; int res = 1; int k = 7 % n; while (k) { k = (k + 7 * powa(10, res) % n) % n; ++res; } print(res); }
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