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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. 	int n = 100;
  8.  
  9.     cout << "n: " << n << endl;
  10.  
  11.    int h=n>>1;
  12.    for(int p=0,pp=0;pp<=h;++p,pp=p*p)
  13.      {
  14.       int k=sqrt(n-pp);
  15.       if(pp+k*k==n) cout<<n<<" = "<<p<<"^2 + "<<k<<"^2"<<endl;
  16.      }
  17.  
  18. 	return 0;
  19. }
Success #stdin #stdout 0.02s 2724KB
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stdin
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Standard input is empty
stdout
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n: 100
100 = 0^2 + 10^2
100 = 6^2 + 8^2
https://ideone.com/jpo0qI
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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