杭电2014

 1 #include <iostream>
 2 #include <iomanip>
 3 using namespace std;
 4 
 5 int main()
 6 {
 7     int n;
 8     double max,min,sum,aver;
 9     double a[110] = {0};
10     while (cin >> n)
11     {
12         for (int i = 0; i<n; i++)
13         {
14             cin >> a[i];
15         }
16         max = min = a[0];
17         sum = 0;
18         for (int i = 0; i<n; i++)
19         {
20             if (a[i]<=min)
21             {
22                 min = a[i];
23             }
24             if (a[i]>=max)
25             {
26                 max = a[i];
27             }
28             sum += a[i];
29         }
30         aver = (double)(sum-max-min)/(n-2);
31         cout<<setprecision(2)<< setiosflags(ios::fixed)<< aver <<endl;
32     }
33     return 0;
34 }