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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n, x=0;
  7. 	cin >> n;
  8. 	for(int a=1; a<=n; a++){
  9. 		for(int b=1; b<=n; b++){
  10. 			int c = sqrt(a*a + b*b);
  11. 			if(c<=n && a<b && c*c==a*a+b*b)
  12. 				x++;
  13. 		}
  14. 	}
  15. 	cout << x;
  16. 	return 0;
  17. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/TKx5wM
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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