제출 #896049

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
896049		vjudge1	Calvinball championship (CEOI15_teams)	C++17	0 / 100	1 ms	604 KiB

teams

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

const long long maxn =41;
const long long maxs=1e6+20;
const long long mod=1e6+7;
const long long logn=25;

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    long long n;
    cin>>n;
    vector<long long>x;
    for(long long i=0;i<n;i++)
    {
        long long num;
        cin>>num;
        x.push_back(num);
    }
    vector<long long>pom;
    pom=x;
    bool ok=true;
    for(long long i=0;i<n;i++)
    {
        if(x[i]!=pom[i])
        {
            ok=false;
            break;
        }
    }
    if(ok)
    {
        long long ans=1;
        long long kol=1;
        n-=2;
        while(n>=0)
        {
            ans+=kol;
            ans%=mod;
            kol*=3;
            kol%=mod;
            n--;
        }
        cout<<ans<<endl;
    }
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
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• Subtask 10: 0 / 10