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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int n;
  8.     cin >> n;
  9.     int k, l=0;
  10.     for(int i=0;i<n;i++){
  11.         for(int j=0; j<n; j++){
  12.             cin >> k;
  13.             if(k)
  14.             l++;
  15.         }
  16.     }
  17.     cout << l << endl;
  18.  
  19.     return 0;
  20. }
Success #stdin #stdout 0s 3100KB
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stdin
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3

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1 0 1

0 1 1
stdout
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6
https://ideone.com/oDWpMt
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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