TICHMAX C++

#include<bits/stdc++.h>
using namespace std;
int n,a[9000005];
long long tmp1,tmp2;
int main()
{
    freopen("tichmax.inp","r",stdin);
    freopen("tichmax.out","w",stdout);
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
    {
        scanf("%d",&a[i]);
    }
    sort(a+1,a+n+1);
    tmp1=1;tmp2=1;
    tmp1=a[1]*a[2]*a[n];
    tmp2=a[n-2]*a[n-1]*a[n];
    if(tmp1>tmp2) cout<<tmp1;
    else cout<<tmp2;
}