Submission details
Task:Ruudukko
Sender:Sisuaski
Submission time:2025-12-20 15:07:36 +0200
Language:C++ (C++20)
Status:READY
Result:49
Feedback
groupverdictscore
#1ACCEPTED13
#2ACCEPTED36
#30
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3details
#2ACCEPTED0.01 s2, 3details
#30.38 s3details

Code

#include <iostream>
using namespace std;
const int Z = 1e9+7;
typedef long long ll;
int main() {
	int n;cin>>n;
	ll res=0;
	for(int i=0; i<n; ++i) {
		for(int j=0; j<n; ++j) {
			ll x;cin>>x;
			res += (i+1)*(j+1)%Z*(n-i)%Z*(n-j)%Z*x%Z;
			res %= Z;
		}
	}
	cout<<res<<'\n';
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
647761 970495 559170 744364 38...

correct output
124914206

user output
124914206

Test 2

Group: 2, 3

Verdict: ACCEPTED

input
100
599900 828824 239920 576308 48...

correct output
247718517

user output
247718517

Test 3

Group: 3

Verdict:

input
1000
130197 933179 613820 209261 72...

correct output
395488302

user output
790111398

Feedback: Incorrect character on line 1 col 1: expected "395488302", got "790111398"