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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. bool isTochnuuKvadrat(const int num)
  6. {
  7.     double temp = sqrt(num);
  8.     return (num == temp * temp);
  9. }
  10. int main()
  11. {
  12.     cout << isTochnuuKvadrat(9) << endl;
  13.     cout << isTochnuuKvadrat(13) << endl;
  14.     cout << isTochnuuKvadrat(16) << endl;
  15.     cout << isTochnuuKvadrat(0) << endl;
  16. }
Success #stdin #stdout 0s 3140KB
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https://ideone.com/Mlv66O
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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