#include<stdio.h> double fun(double a[],int n) { double sum=0.0,max=a[0],min=a[0]; int i; for(i=0;i<n;i++) { if(max<a[i]) max=a[i]; if(min>a[i]) min=a[i]; sum=sum+a[i]; } sum=sum-min-max; return sum/(n-2); } void main() { double aver,a[100]; int i,n; printf("please input the count:"); scanf("%d",&n); printf("please input the nums:"); for(i=0;i<n;i++) scanf("%lf",&a[i]); aver=fun(a,n); printf("the aver is:%lf ",aver); }