THONGKE C++

#include<bits/stdc++.h>
using namespace std;
 
int n;
int a[1000000];
 
void doc()
{
    cin>>n;
    for (int i=1;i<=n;i++)
        cin>>a[i];
}
 
void xuly(){
    sort(a+1,a+n+1);    //xai ham sort
    int d = 1;
    int k = 1;
    int maxx = 1;
    for (int i=2;i<=n;i++)
    {
        if (a[i] != a[i-1])
        {
            k++;d=1;
        }
        else d++;
        maxx = max(maxx,d);
    }
    cout<<k<<endl<<maxx;
}
 
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    freopen("THONGKE.inp", "r", stdin);
    freopen("THONGKE.out", "w", stdout);
    doc();
    xuly();
}