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  1. #include <stdio.h>
  2. int main()
  3. {
  4. 	//number of trailing zeroes in n!
  5. 	int n,s=0;
  6. 	scanf("%d",&n);
  7.  
  8. 	while(n!=0)
  9. 	{
  10. 		n=n/5;
  11. 		s=s+n;
  12.  
  13. 	}
  14. 	printf("%d",s);
  15.  
  16. }
Success #stdin #stdout 0s 4556KB
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https://ideone.com/pTGDwe
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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