Submission #527291

#	Time	Username	Problem	Language	Result	Execution time	Memory
527291		ecxx	Calvinball championship (CEOI15_teams)	C++17	70 / 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() {

    ios::sync_with_stdio(0);
    cin.tie(0);
    
    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 j = 0; j < N+1; j++) {
        dp[0][j] = j+1;
        dp[1][j] = seq[0];
    }
    
    for (int i = 1; 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: 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: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10