172. Factorial Trailing Zeroes(Linked))

//https://leetcode.com/problems/factorial-trailing-zeroes
class Solution {
public:
    int trailingZeroes(int n) {
        int res = 0;
        int i = 1;
        while(n/pow(5,i)>0){
            res+=n/pow(5,i);
            i++;
        }
       return res; 
    }
};