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  1. using namespace std;
  2. #include <iostream>
  3.  
  4. long f(int x)
  5. 	{
  6. 		if (x == 0)
  7. 		{
  8. 			return 1;
  9. 		} else
  10. 		{
  11. 			return x * f(x - 1);
  12. 		}
  13. 	}
  14.  
  15. int main()
  16. {
  17.  
  18. 	int number;
  19. 	std::cin >> number;
  20. 	std::cout << f(number);
  21. 	return 0;
  22. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/vnDTYY
language:
C++ (gcc 8.3)
created:
9 days ago
visibility:
public

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