제출 #527116

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
527116		ecxx	Calvinball championship (CEOI15_teams)	C++17	0 / 100	1085 ms	460 KiB

teams

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

int MOD = 1000007;

vector<int> seq;
vector<vector<int > > dp;


int main() {

    int N, dpns, dps;cin>>N;
    seq.assign(N, 0);
    dp.assign(2, vector<int>(N+2, -1));

    for (int i = N-1; i >= 0; i--) {
        cin >> seq[i];
    }

    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N+1; j++) {
            dpns = j * dp[0][j] + dp[0][j+1];
            dpns %= MOD;
            dps = (dp[1][max(seq[i], j)]) + ((seq[i]-1)*dp[0][j]);
            dps %= MOD;

            dp[1][j] = dps;
            dp[0][j] = dpns;
        }
    }

    cout << dp[1][1] << endl;

}

• Subtask 1: 0 / 10
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• Subtask 10: 0 / 10