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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int n, res = 0;
  8.  
  9.     cin >> n;
  10.  
  11.     for(int q=0; q<10; q++)
  12.         for(int w=0; w<10; w++)
  13.         {
  14.         	int t = n - q - w;
  15.         	res += t >= 0 && t <= 9;
  16.         }
  17.  
  18.     cout << res * res << endl;
  19.  
  20.     return 0;
  21. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/PChS3k
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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