Alitaulukot

input/code.cpp: In function 'int main()':
input/code.cpp:17:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<v.size()/2;i++){
               ^
input/code.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=v.size()-1;i>v.size()/2-1;i--){
                        ^

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

long long n;
long long m;
long long x = 10e9+7;
vector<int> v;
long long z;
int main(){
	cin >> n;
	//cout << n;
	for(int i=0;i<n;i++){
		cin >> m;
		//cout << m << "\n";
		v.push_back(m);
	}
	for(int i=0;i<v.size()/2;i++){
		z += (v[i]*(n+i*(n/2)));
		z = z%x;
	}
	for(int i=v.size()-1;i>v.size()/2-1;i--){
		z += v[i]*(n+(n/2)*(n-i-1));
		z = z%x;
	}
	cout << z;
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 2

Verdict: WRONG ANSWER