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  1. #include <iostream>
  2.  
  3. int sumtorial( int value )
  4. {
  5.     if ( value )
  6.     {
  7.     	std::cout << value ;
  8.  
  9.     	if (value - 1)
  10.     		std::cout << " + " ;
  11.  
  12.         value += sumtorial(value-1) ;
  13.     }
  14.  
  15.     return value ;
  16. }
  17.  
  18. int main()
  19. {
  20. 	int result = sumtorial(6) ;
  21.     std::cout << " = " << result << '\n' ;
  22. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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6 + 5 + 4 + 3 + 2 + 1 = 21
https://ideone.com/o5nBni
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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