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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. int main(void) 
  4. {
  5. 	int n,i=1,fact=1;
  6.  
  7. 	do
  8. 	{
  9. 		scanf("%d",&n);
  10. 		printf("input n(n>0):%d\n",n);
  11. 	}
  12. 	while(n<=0);
  13.  
  14. 	do
  15. 		fact*=i++;
  16. 	while (i <= n);
  17. 	printf("%d!=%d\n",n,fact);
  18.  
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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6
stdout
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input n(n>0):6
6!=720
https://ideone.com/Tqy3FO
n!=1*2*3*.....*n
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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