Submission #971596

#	Time	Username	Problem	Language	Result	Execution time	Memory
971596		12345678	Calvinball championship (CEOI15_teams)	C++17	20 / 100	587 ms	632 KiB

teams

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=1e4+5, mod=1e6+7;

ll n, x, dp[2][nx], res=1;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) cin>>x, dp[1][i]=1;
    for (int i=2; i<=n; i++)
    {
        int c=i%2, p=1-c;
        for (int j=1; j<=n; j++) dp[c][j]=(dp[c][j-1]*i+dp[p][j-1])%mod;
        res=(res+dp[c][n])%mod;
    }
    cout<<res;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 10 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10