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  1. #include <iostream>
  2. #include <math.h>
  3. // #include <cmath>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	cout << sqrt(9.0) << endl;
  8. 	// 3.0.... => 3
  9. 	int N, akar;
  10. 	cin >> N;
  11. 	akar = (int)sqrt((double)N);
  12. 	if(akar*akar == N)
  13. 		cout << akar << endl;
  14. 	else
  15. 		cout << 0 << endl;
  16. 	return 0;
  17. }
Success #stdin #stdout 0.01s 5216KB
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https://ideone.com/4tlSgK
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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