Submission #945108

#	Time	Username	Problem	Language	Result	Execution time	Memory
945108		Reverberate	Fancy Fence (CEOI20_fancyfence)	C++17	15 / 100	16 ms	2140 KiB

fancyfence

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
#define INF 1e18
#define DEBUG 0
#define MOD (int)(1e9 + 7)

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, W = 0, H = 0; cin >> n;
	
	for(int i = 0; i < n; i++){
		int h; cin >> h;
		H = h;
		H %= MOD;
	}
	for(int i = 0; i < n; i++){
		int w; cin >> w;
		W += w;
		W %= MOD;
	}
	int temp = ((H*(H+1))/2)%MOD;
	int temp2 = ((W*(W+1))/2)%MOD;
	cout << (temp*temp2)%MOD;
}

• 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