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  1. /*
  2.     Author: Anas
  3.     Date:   25-09-2024
  4.     Time:   21:33:40
  5.     File:   a.cpp
  6. */
  7. #include <bits/stdc++.h>
  8. using namespace std;
  9.  
  10. using ll = long long;
  11.  
  12. int main() {
  13.     ios::sync_with_stdio(false);
  14.     cin.tie(NULL);
  15.  
  16.     ll t=1;
  17.     // cin >> t;
  18.  
  19.     // auto Anas = [&]() {
  20.  
  21.  
  22.     // };
  23.  
  24.     while (t--) {
  25.         // Anas();
  26.         ll n;
  27.         cin>>n;
  28.         ll cnt=0;
  29.         while (n--)
  30.         {
  31.             ll a,b,c;
  32.             cin>>a>>b>>c;
  33.             if(a==1 && b==1 || b==1 && c==1 || a==1 && c==1)
  34.             {
  35.                 cnt++;
  36.             }
  37.         }
  38.         cout<<cnt<<"\n";
  39.     }
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0s 5292KB
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https://ideone.com/sG0g8h
language:
C++ (gcc 8.3)
created:
281 days ago
visibility:
public

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