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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9.     int n;
  10.     cin >>n;
  11.     while(n--){
  12.    int a, b, c, d;
  13.    cin >>a>>b>>c>>d;
  14.    if (a==b && b==c && c==a)
  15.     cout<<"YES"<<endl;
  16.    else
  17.     cout<< "NO"<<endl;
  18.     }
  19. }
  20.  
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/O2wMEq
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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