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  1. #include <stdio.h>
  2.  
  3. unsigned long long factorial(int n)
  4. {
  5.     return (n > 0) ? (n * factorial(n - 1)) : 1;
  6. }
  7.  
  8. int main(void)
  9. {
  10. 	int n = 6;
  11. 	printf("%d! = %Lu\n", n, factorial(n));
  12. 	return 0;
  13. }
  14.  
Success #stdin #stdout 0s 2156KB
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stdin
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Standard input is empty
stdout
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6! = 720
https://ideone.com/5RzBCb
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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