> #include<stdio.h>
> 
> int main()
> {
> 	int n,sum,i,t;
> 
> 	scanf("%d",&t);
> 	while(t--)
> 	{
> 		scanf("%d",&n);
> 		for(sum=0,i=5;i<=n;i*=5)
> 			sum+=n/i;
> 		printf("%d\n",sum);
> 	}
> 
> 	return 0;
> }
真狠