TrailingZeroInFactorial.c

#include<stdio.h>

unsigned count_of_trailing_zero(unsigned num){

    unsigned count=0,d,i;

    for(i=5;(d=num/i)>=1;i*=5,count+=d);

    return count;
}

int main()
{

   unsigned n;

   scanf("%u",&n);

   unsigned input[n],i;

   for(i=0;i<n;i++)
       scanf("%u",&input[i]);


   for(i=0;i<n;i++)
       printf("%u\n",count_of_trailing_zero(input[i]));

  return 0;
}