Submission #900218

#	Time	Username	Problem	Language	Result	Execution time	Memory
900218		raphaelp	Calvinball championship (CEOI15_teams)	C++14	100 / 100	74 ms	768 KiB

teams

#include <bits/stdc++.h>
using namespace std;
int main()
{
    long long N;
    cin >> N;
    vector<long long> Tab(N);
    for (long long i = 0; i < N; i++)
    {
        cin >> Tab[i];
    }
    long long maxx = 0;
    vector<long long> id(N);
    for (long long i = 0; i < N; i++)
    {
        id[i] = max((long long)0, maxx - 1);
        maxx = max(maxx, Tab[i]);
    }
    vector<long long> dp(N, 1);
    vector<long long> temp(N, 1);
    for (long long i = N - 2; i >= 0; i--)
    {
        for (long long j = 0; j <= i; j++)
        {
            temp[j] = (temp[j + 1] + (temp[j] * (j + 1))) % 1000007;
        }
        dp[i] = temp[id[i]];
    }
    long long tot = 0;
    for (long long i = 0; i < N; i++)
    {
        tot += (Tab[i] - 1) * dp[i];
        tot = tot % 1000007;
    }
    cout << (tot + 1) % 1000007;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10