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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main ()
  5. {
  6.     int n = 2147483647;//it's prime number!
  7.     int sqr = sqrt(n);
  8.     while (sqr * sqr > n) sqr--;
  9.     while (sqr * sqr < n) sqr++;
  10.     if(sqr * sqr == n) cout << "Square";
  11.  
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 4276KB
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Square
https://ideone.com/Wl12Mf
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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