Submission #745779

#	Time	Username	Problem	Language	Result	Execution time	Memory
745779		vjudge1	Fancy Fence (CEOI20_fancyfence)	C++17	15 / 100	76 ms	2252 KiB

fancyfence

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

int main(){

    long long h, w;
    long long wsum = 0;
    long long n; cin >> n;
    for(int i = 0; i < n; i++){
        cin >> h;
    }
    for(int i = 0; i < n; i++){
        cin >> w;
        wsum += w;
        wsum = wsum%1000000007;
    }
    long long ans = wsum * (wsum+1);
    ans = ans%1000000007;
    ans *= h;
    ans = ans%1000000007;
    ans *= (h+1);
    ans = ans%1000000007;
    while(ans % 4 != 0){
        ans += 1000000007;
    }
    ans /= 4;
    cout << ans;
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 12
• Subtask 3: 0 / 13
• Subtask 4: 15 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 18
• Subtask 7: 0 / 27