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  1. #include <iostream>
  2. using namespace std;
  3. int main() {
  4. 	int x1,x2,y1,y2;
  5. 	cin>>x1>>x2;
  6. 	cin>>y1>>y2;
  7.      if(x1*y1>0 && x2*y2>0) cout<<'YES';
  8.      else cout<<'NO';
  9. }
Success #stdin #stdout 0s 15232KB
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20047
https://ideone.com/9Da5BW
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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