Code mẫu

#include <bits/stdc++.h>
using namespace std;
#define tag "ZEZE"
#define forinc(i,a,b) for(int i=a;i<=b;i++)
#define checkfile(FiLeNaMe) { if(fopen(FiLeNaMe".inp","r")) freopen(FiLeNaMe".inp","r",stdin),freopen(FiLeNaMe".out","w",stdout); }


void enter(){
    int m,n;
    int fi=0,tw=0;

    cin>>m;
    forinc(i,1,m){
        cin>>n;
        while(n%2==0) ++tw,n/=2;
        while(n%5==0) ++fi,n/=5;
    }

    cout<<min(tw,fi);
}

void solve(){
}

signed main(){

    checkfile(tag)
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    enter();
    solve();

    return 0;
}