fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int T;
  6.     cin >> T;
  7.  
  8.     while (T--) {
  9.         int N;
  10.         cin >> N;
  11.  
  12.         long long trai = 0, phai = 0;
  13.  
  14.         for (int i = 0; i < N; i++) {
  15.             int x;
  16.             cin >> x;
  17.  
  18.             if (i < N / 2)
  19.                 trai += x;
  20.             else
  21.                 phai += x;
  22.         }
  23.  
  24.         cout << trai * phai << endl;
  25.     }
  26.  
  27.     return 0;
  28. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/ahekPC
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!