Submission #1234665

#	Time	Username	Problem	Language	Result	Execution time	Memory
1234665		gry3125	Fancy Fence (CEOI20_fancyfence)	C++20	15 / 100	48 ms	1864 KiB

fancyfence

#include <bits/stdc++.h>
using namespace std;
#define ll long long int

int main() {
    int n; cin >> n;
    vector<ll> hh(n), ww(n);
    for (int i = 0; i < n; i++) cin >> hh[i];
    for (int i = 0; i < n; i++) cin >> ww[i];
    ll h = hh[0]; ll w = 0;
    for (int i = 0; i < n; i++) {
        w += ww[i]; w %= 1000000007;
    }
    ll hs = ((h+1)*h)/2, ws = ((w+1)*w)/2;
    hs %= 1000000007; ws %= 1000000007;
    cout << (hs*ws)%1000000007;
    return 0;
}

• 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