C++ :

#include <bits/stdc++.h>
using namespace std;
int n,a[20005],sum;
double ans;
int main(){
	cin>>n;
	for(int i=0;i<n;i++)
	{
		cin>>a[i];
		sum+=a[i];
	}
	sort(a,a+n);
	sum=sum-a[0]-a[n-1];
	ans=1.0*sum/(n-2);
	int t=(ans+0.05)*10;
	double avg=1.0*t/10;
	cout<<avg;
	return 0;
}