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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() 
  5. {
  6.  int N, c = 0;
  7.  cin >> N;
  8.  
  9.  for ( int i = 0; i < 10; i++)
  10.  {
  11.   for( int j = 0; j < 10; j++)
  12.   {
  13.     if( N - i - j >= 0 && N - i - j < 10 )
  14.      { c++; }
  15.   }
  16.  }
  17.  cout << c*c;
  18.  return 0;
  19. }
Success #stdin #stdout 0s 3460KB
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https://ideone.com/d0cWHZ
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language:
C++14 (clang 8.0)
created:
9 years ago
visibility:
secret

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