HDU ACM 11 2014 青年歌手大赛-评委会打分

#include <iostream>
using namespace std;
int main()
{
int Lu[80];
int i = 0;
int n = 0;
int x;
while (cin >> n)
{
for (i = 0; i < n; i++)
cin >> Lu[i];
for (int j = 1; j < i; j++)
{
int key = Lu[j];
x = j - 1;
while (x >= 0 && Lu[x] > key)
{
Lu[x + 1] = Lu[x];
x--;
}
Lu[x + 1] = key;
}
double sum = 0;
for (int Yi = 1; Yi < (i - 1); Yi++)
sum += Lu[Yi];
double Hui = sum/(i - 2);
cout << fixed;
cout.precision(2);
cout << Hui << endl;
i = 0;
sum = 0;
}
return 0;
}