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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. int a,b,c,d;
  6. cin >> a >> b >> c >> d;
  7. if (a == b && c == d){
  8. 	cout << "YES";
  9. } else {
  10. 	cout << "NO";
  11. }
  12. }
Success #stdin #stdout 0.01s 5312KB
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stdin
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2
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stdout
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YES
https://ideone.com/v7oU6A
language:
C++ (gcc 8.3)
created:
15 hours ago
visibility:
public

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