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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4. int T,n,a,b;
  5. int A[1005];
  6. int main() {
  7.     ios_base::sync_with_stdio(false);
  8.     cin.tie(NULL);
  9.     cin >> T;
  10.     while(T--)
  11.     {
  12.     	a = 0;
  13.     	b = 0;
  14.         cin >> n;
  15.         for(int i = 1; i <= n; i++)
  16.         {
  17.             cin >> A[i];
  18.             if(i <= n/2) a += A[i];
  19.             else b += A[i];
  20.         }
  21.         cout << a*b << endl;
  22.     }
  23.     return 0;
  24. }
Success #stdin #stdout 0s 5272KB
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stdin
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https://ideone.com/OCTnhy
language:
C++14 (gcc 8.3)
created:
111 days ago
visibility:
public

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