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  1. #include <stdio.h>
  2.  
  3. int fatorial(int num) {
  4.     if (num >= 0) {
  5.         int fat = 1;
  6.         while (num > 0) {
  7.             fat *= num;
  8.             num--;
  9.         }
  10.         return fat;
  11.     } else {
  12.         return -1;
  13.     }
  14. }
  15.  
  16. int main(void) {
  17. 	printf("%d\n", fatorial(0));
  18. 	printf("%d\n", fatorial(1));
  19. 	printf("%d\n", fatorial(5));
  20. 	printf("%d\n", fatorial(-5));
  21. }
  22.  
  23. //http://pt.stackoverflow.com/q/185600/101
Success #stdin #stdout 0s 10320KB
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https://ideone.com/qpeNVI
language:
C99 (gcc 8.3)
created:
7 years ago
visibility:
public

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