Answers for "trailing zeros in 100 factorial"

trailing zeroes in factorial

#include <iostream>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>>n;
        int res=0;
        for(int i=5;i<=n;i=i*5)
        {
            res=res+n/i;
        }
        cout<<res<<endl;
    }
    return 0;
}