Submission #1107700

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107700		12345678	Calvinball championship (CEOI15_teams)	C++17	30 / 100	1067 ms	592 KiB

teams

#include <bits/stdc++.h>

using namespace std;

#define ll long long

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

ll n, a[nx], h, res;

ll solve(ll l, ll mx)
{
    if (l==0) return 1;
    return (solve(l-1, mx)*mx+solve(l-1, mx+1))%mod;
}

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) 
    {
        cin>>a[i];
        for (int j=1; j<a[i]; j++) res=(res+solve(n-i, h))%mod;
        h=max(h, a[i]);    
    }
    cout<<res+1;
}

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