제출 #1121730

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1121730		vjudge1	Calvinball championship (CEOI15_teams)	C++17	0 / 100	1 ms	508 KiB

teams

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ld double


const int INF = 1e18;
const int mod = 1e9 + 7;
const int sz = 3e5 + 5;
const int usz = 1e6 + 5;

signed main()
{
   ios_base::sync_with_stdio(0);cin.tie(0);
    int n;
    cin >> n;
    if(n == 1)
    {
        cout << 1 << endl;
        return 0;
    }
    int cur = 1;
    for(int i = 1;i <= n - 1;i++)
    {
        cur *= 2;
        cur %= mod;
    }
    cout << (cur + 1) % mod << endl;
}

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• Subtask 3: 0 / 10
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• Subtask 10: 0 / 10