Search is not available for this dataset
name
stringlengths
2
112
description
stringlengths
29
13k
source
int64
1
7
difficulty
int64
0
25
solution
stringlengths
7
983k
language
stringclasses
4 values
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class Main { private static IO io; public static void main(String[] args) throws IOException { new Main().run(); } private void run() throws IOException { io = new IO(System.getProperty("ONLINE_JUDGE")!=null); solve(); io.flush(); ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, res = 0; cin >> n; for (int i = n; i >= 2; i--) res += (12 * (i - 1)); res += 1; cout << res << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int n; cin >> n; long long int ans = ((n - 1) * (n)) / 2; ans *= 12; ans++; cout << ans << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a, ans = 1; cin >> a; for (int i = 0; i < a; i++) { ans += i * 12; } cout << ans; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Main { public static void main(String args[]){ Scanner cin = new Scanner(System.in); while (cin.hasNext()){ long a = cin.nextLong(); long r = f(a); System.out.println(r); } } public static lon...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a, i, sum = 0; cin >> a; for (i = 1; i <= a; i++) { if (i == 1) sum = sum + 1; else sum = sum + 12 * (i - 1); } cout << sum; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; import java.util.List; public class Main2 { private static StringTokenizer st; private static BufferedReader br; public static void print(Object x) { System.out.println(x + ""); } public static String join(List<?> x, String space) { StringBuild...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; inline bool ascending(int i, int j) { return (i < j); } inline bool descending(int i, int j) { return (i > j); } const int MN = (1e5) + 10; int comp(const void *a, const void *b) { return (*(int *)a - *(int *)b); } bool cmp(int a, int b) { return a > b; } int main() { int...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; scanf("%d", &n); printf("%d\n", 6 * n * (n - 1) + 1); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; void solve() { int n; cin >> n; cout << 6 * n * (n - 1) + 1 << "\n"; } int main() { ios::sync_with_stdio(0); cin.tie(0); solve(); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class Star { public static void main(String[] args) { Scanner cin = new Scanner(System.in); int n = cin.nextInt(); cin.close(); System.out.print(n * (n - 1) * 6 + 1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def tri_len(n): return 3*n-2 def triangle(n): return (n*(n+1))//2 def star(n): l = tri_len(n) return triangle(n-1)*3 + triangle(l) print(star(int(input())))
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { int a, n = 1; scanf("%d", &a); for (int i = 1; i < a; i++) n += 12 * i; printf("%d", n); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; using ll = long long; const int N = 1 + 4; map<string, string> maap; vector<int> circle; bool vis[N]; int parent[N]; int chk[N]; int color[N]; int tim[2][N]; int dis[N]; int position[N]; vector<int> adj[N]; vector<int> adj1[N]; vector<int> graph[N]; bool has_cycle; int maxd...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { string a, b; long long s, d, i, n, t; cin >> n; t = 1; d = 12; if (n == 1) { cout << 1; return 0; } for (i = 0; i < n - 1; i++) { t = t + d; d = d + 12; } cout << t; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int sky(int n) { int count = 1, acount = 12; if (n == 1) return 1; if (n >= 2) { count += acount; for (int i = 2; i < n; i++) { count += (acount * i); } } return count; } int main() { int n; cin >> n; cout << sky(n) << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; cin >> a; int ans = a * (a - 1) / 2; cout << ans * 12 + 1; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; if (n == 1) { cout << 1 << endl; return 0; } int ans = 13; for (int i = 3; i <= n; i++) { ans += (2 * (i - 1) - 1) * 6 + 6; } cout << ans << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << 6 * n * (n - 1) + 1; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Star { private static Scanner in = new Scanner(System.in); public static void main(String[] args) { int a = in.nextInt(); int ret = 6*a*a - 6*a + 1; System.out.println(ret); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) ans = 1 for i in range(1, n): ans += (i*12)%2000000000 print(ans)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { unsigned long long a, b = 1; cin >> a; if (a > 1) { for (int i = 1; i < a; i++) { b += (2 * i - 1) * 6 + 6; } } cout << b << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using LL = long long; using ULL = unsigned long long; using LLL = __int128; using ULLL = unsigned __int128; namespace std { void swap(int& x, int& y) { x ^= (y ^= (x ^= y)); } void swap(LL& x, LL& y) { x ^= (y ^= (x ^= y)); } }; // namespace std using std::swap; template <typename T, typename ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int ret[20000]; int main() { int a; ret[1] = 1; ret[2] = 13; for (int i = 3; i <= 18257; i++) ret[i] = ret[i - 1] + 6 * ((i - 1) * 2); scanf("%d", &a); printf("%d\n", ret[a]); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=input() print 6*n*(n-1)+1
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
//referred professors code import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Star { static int triangle(int n) { return n*(n+1)/2; } static int hexagon(int n) { return triangle(n)*6-n*6+1; } public static void main(String[] args) throws NumberFormatExce...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import math import queue from itertools import permutations n=int(input()) if n==1: print(1) else: print((6*n*(n-1)+1))
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; import java.util.zip.*; import java.io.*; import java.math.BigDecimal; import java.math.BigInteger; import java.nio.charset.Charset; import java.nio.charset.CharsetDecoder; import java.nio.charset.CharsetEncoder; import static java.util.Arrays.sort; import static java.lang.Math.max; import static j...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long a; cin >> a; long long s = 1; int i; for (i = 1; i <= a; ++i) s += (12 * i - 12); cout << s; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int m; while (cin >> m) cout << ((m * 3 - 1) * (m * 3 - 2) + 3 * m * (m - 1)) / 2 << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); long long n; cin >> n; cout << 6 * n * (n - 1) + 1 << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class B{ public static void main(String[] args) { Read in = new Read(); int input; long out; input = in.nextInt(); out = 6*(input)*(input-1) + 1; System.out.println(out); } static class Read { ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner input = new Scanner(System.in); int a = input.nextInt(); System.out.println((a * (a - 1) * 6) + 1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def starNumber(n): star = [0] * n star[0] = 1 for i in range(1, n): star[i] = star[i - 1] + 12 * (i + 1) - 12 return star[n - 1] n = int(input()) print(starNumber(n))
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; template <class T> inline void smn(T &a, const T &b) { if (b < a) a = b; } template <class T> inline void smx(T &a, const T &b) { if (b > a) a = b; } template <class T> inline T rev(const T &a) { T _ = a; reverse(_.begin(), _.end()); return _; } const double eps =...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { int n, y; scanf("%d", &n); y = 6 * n * n - 6 * n + 1; printf("%d", y); }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
//package codeforces;//package codeforces; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.StringTokenizer; public class StarNumber { static class FastScanner { BufferedReader br = new BufferedReader(new InputStr...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; long long tri(long long n) { return n * (n + 1) / 2; } int main() { long long n; cin >> n; cout << tri(3 * n - 2) + 3 * tri(n - 1) << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> const long long inf = 1000000000; const long long inf64 = inf * inf; const double pi = acos(-1.0); long long Abs(long long x) { return (x >= 0 ? x : -x); } using namespace std; bool solve() { long long a; cin >> a; vector<long long> dp(a + 2); dp[1] = 1; dp[2] = 13; for (int i(3); i...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> #pragma GCC optimize(2) using namespace std; inline int read() { char c = getchar(); int x = 0; bool f = 0; for (; !isdigit(c); c = getchar()) f ^= !(c ^ 45); for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + (c ^ 48); if (f) x = -x; return x; } int n; int main() { n =...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.PrintWriter; import java.util.Scanner; public class First { static Scanner in; static int next() throws Exception {return in.nextInt();}; // static StreamTokenizer in; static int next() throws Exception {in.nextToken(); return (int) in.nval;} // static BufferedReader in; static PrintWriter out; publ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { long long int a, i, ans = 1; scanf("%lld", &a); for (i = 2; i <= a; i++) { ans += 12 * (i - 1); } printf("%lld\n", ans); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a=input() c=0 b=1 for i in range (a-1): b+=6*(i+2)+c c=6*(i+1) print b
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long i, n, sum = 1; cin >> n; for (i = 1; i < n; i++) sum = sum + (12 * i); cout << sum; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=int(input()) summ=0 for i in range(n): summ+=12*i print(1+summ)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n; long long s, x; int main() { srand(time(NULL)); cin >> n; n--; s = 1; x = 12; while (n) { s += x; x += 12; n--; } cout << s << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> #pragma GCC target("avx2") #pragma GCC optimization("O3") #pragma GCC optimization("unroll-loops") #pragma GCC optimize("Ofast") #pragma GCC target("avx,avx2,fma") using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); ; { long long int ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main(void) { int n; scanf("%d", &n); printf("%d\n", (6 * n * (n - 1) + 1)); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class B { public static void main(String[] args) { long[] nums = new long[18258]; nums[1] = 1; for(int i = 2; i < nums.length; i++) nums[i] = 12 * (i - 1); for(int i = 2; i < nums.length; i++) nums[i] += nums[i-1]; ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(raw_input()) print 1+n*(n-1)*6
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << (n * 6) * (n - 1) + 1; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.math.BigInteger; import java.util.Hashtable; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); Hashtable<BigInteger, BigInteger> tabla = new Hashtable<BigInteger, BigInteger>(); tabla.put(new BigInteger("1"), new Big...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; if (n == 1) { cout << 1; exit(0); } if (n == 2) { cout << 13; exit(0); } int d = 24; int ops = 12; int ans = 13; for (int i = 0; i < n - 2; i++) { ans += d; d += ops; } cout << ans; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ //package codeforces; import java.util.Scanner; /** * * @author DELL */ public class Star { public static void solve(){ Scanner nera = new Scanner(System.in); int n = nera.nextInt(); ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; long long f = 0, ans = 1; for (int i = 2; i <= n; ++i) { f += 12; ans += f; } cout << ans << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << (6 * n * (n - 1)) + 1 << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); int f = scan.nextInt(); long ans = 0; for (; f > 1; f--) { ans += (f - 1) * 12; } System.out.println(ans + 1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const long long N = 1e6; long long t; long long a; void solve() { cin >> a; long long ans = 1; for (int i = 1; i <= a - 1; i++) { ans = ans + i * 12; } cout << ans << endl; } int main() { ios::sync_with_stdio(0), cin.tie(0); solve(); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << (((3 * n) - 2) * ((2 * n) - 1)) + n - 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << (6 * n * (n - 1) + 1) << "\n"; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, sum, i; cin >> n; cout << (12 * ((n * (n + 1)) / 2 - n)) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) print(6*(n-1)*n+1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
__author__ = 'MARI' def main(): a = int(input()) print(1 + 12*(a*(a-1)//2)) if __name__ == '__main__': import sys argv = sys.argv main()
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long a, Output, i, k, j; while (cin >> a) { i = 0; j = 0; Output = 1; for (k = 1; k <= a; k++) { i++; Output += j; j = 12 * i; } cout << Output << endl; } return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, sn; 1 <= n <= 18257; 1 <= sn <= 2000000000; cin >> n; if (n == 1) cout << 1; if (n != 1) cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#!/usr/bin/env python from __future__ import division, print_function import math import os import sys from fractions import * from sys import * from io import BytesIO, IOBase from itertools import * from collections import * # sys.setrecursionlimit(10**5) if sys.version_info[0] < 3: from __builtin__ import xran...
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int res = 1; for (int i = 1; i < n; ++i) { res += i * 12; } cout << res; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int f(int n) { if (n == 1) return 1; return (n * 2 - 1) * 6 - 6 + f(n - 1); } int main() { int n; cin >> n; cout << f(n) << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#!/usr/bin/python2 a = int(raw_input()) ans = sum(range(a, a + a)) + sum(range(a, a + a - 1)) ans += sum(range(1, a)) * 6 print ans
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a = input() print 1 + 6*(a-1)*a
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; void timo() { ios::sync_with_stdio(0); ios_base::sync_with_stdio(0); cin.tie(0), cout.tie(0); } int main() { timo(); long long n, ans = 1, arr[18258]; arr[0] = 1, arr[1] = 12; cin >> n; for (int i = 1; i < n; i++) { if (i > 1) arr[i] = arr[i - 1] + 12; ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) ans = 1 for i in range(1, n): ans += 12 * i print(ans)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const double PI = 2 * asin(1.0); const int INF = 1000000000; const double EPS = 1e-10; inline int cmp(double x, double y = 0, double tol = EPS) { return (x <= y + tol) ? (x + tol < y) ? -1 : 0 : 1; } inline long long gcd(long long n1, long long n2) { return n2 == 0 ? ab...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); int x; cin >> x; cout << 1 + x * (x - 1) * 6 << "\n"; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const double pi = acos(-1.0); const int inf = (int)1e9; int main() { int a; cin >> a; --a; long long int res = (24 + 12 * (a - 1)) / 2 * a; res++; cout << res; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a = int(input()) x = 1 for i in xrange(1,a): x += (i)*12 print x
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n; int main() { scanf("%d", &n); printf("%lld", (long long)6 * (n - 1) * n + 1); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const long long int inf = 1LL << 62; const long long int nlyinf = 1LL << 60; template <class P, class Q> ostream &operator<<(ostream &out, const pair<P, Q> &p); template <class T> ostream &operator<<(ostream &out, const vector<T> &V); template <> ostream &operator<<<long lo...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const int INF = 0x3f3f3f3f; const long long LLINF = 0x3f3f3f3f3f3f3f3f; const int MOD = 1000000007; const double EPS = 1e-8; const long double EULER = 2.71828182845904523536; const long double PI = 3.14159265358979323846; int main() { ios_base::sync_with_stdio(0); cin.t...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.lang.reflect.Array; import java.util.*; public class Main { public static void main(String[] args) throws IOException { new Main().run(); } // BufferedReader in; // PrintWriter out; // // void run() throws IOException // { // in = new BufferedReader(new InputS...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def suma (i,j): if j<i: return 0 return ((i+j)*(j-i+1))//2 def odpowiedz(n): return 1+12*suma(1,n-1) txt = raw_input() n = int(txt) print odpowiedz(n)
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class Main { public Scanner sc; public void run() { int n = sc.nextInt(); System.out.println(1+6*n*(n-1)); } public static void main(String[] args) { Main main = new Main(); try { main.sc = new Scanner(new FileInput...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) ans = 1 t = 12 for i in range(1,n): ans += i*t print(ans)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class fool1 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n; n = sc.nextInt(); long val = 1; n -= 1; while(n>0){ val += 12*n; n--; } System.out.println(val); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; long long S(long long n) { return (n * (n + 1)) / 2; } long long A(long long n) { return S(3 * n + 1) + 3 * S(n); } int main() { long long n; cin >> n; cout << A(--n); }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int i; int answer = 1; for (i = 2; i <= n; i++) { answer += (6 * (2 * i - 2)); } cout << answer << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; scanf("%d", &n); cout << (6 * n * (n - 1)) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a, b; cin >> a; if (a == 1) { cout << '1'; return 0; } if (a == 2) { cout << "13"; return 0; } long long sol = 1; sol += 1LL * 6 * a * (a + 1) / 2; sol += 1LL * 6 * ((a - 2) * (a - 1) / 2 - 1); cout << sol << '\n'; retu...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class P171B_Star { public static void main(String[] args) throws IOException { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); int a = Integer.parseInt(in.readLine()); ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class Star { public static void main(String[] args) throws IOException { BufferedReader f = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(f.readLine()); System.out.println(6*n*(n-1)+1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n; int main() { scanf("%d", &n); printf("%d\n", 6 * n * (n - 1) + 1); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class Temp { static BufferedReader reader; static StringTokenizer tokenizer = null; static PrintWriter writer; static int nextInt() throws IOException { return Integer.parseInt(nextToken()); } static long nextLong() throws IOException { ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.PrintWriter; import java.util.Scanner; public class Main { public static void main(String[] argv) { new Main().run(); } Scanner in; PrintWriter out; void run() { in = new Scanner(System.in); out = new PrintWriter(System.out); try { solve(); } finally { out.close(); } } int re...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n, ans; int main() { scanf("%d", &n); ans = 1; for (int i = 2; i <= n; i++) { ans += 6 * (2 * i - 2); } printf("%d\n", ans); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Arrays; import java.util.Scanner; public class ap02 { public static void debug(Object... obs) { System.out.println(Arrays.deepToString(obs)); } public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n=sc.nextInt(); ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n, m; long long p[20000], ans = 1; int main() { scanf("%d", &n); if (n == 1) { puts("1"); return 0; } p[0] = 0; for (int i = (1); i <= (n); i++) p[i] = p[i - 1] + i; ans = 13; for (int i = (3); i <= (n); i++) { ans += 6 + 6 * (p[i - 1] - p[i - ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.math.*; import java.util.*; import java.util.stream.*; import static java.lang.Math.abs; import static java.lang.Math.min; import static java.lang.Math.max; import static java.lang.Math.sqrt; import static java.lang.Integer.signum; @SuppressWarnings("unchecked") public class P0171B { p...
JAVA