C 语言程序设计实践 5.1 得分

#include <stdio.h>
int main()
{
int n,i,max,min,a[100]={0},sum=0;
double aver=0;
scanf("%d",&n);
for (i=0;i<n;++i){
scanf("%d",&a[i]);
if (i==0){
max=a[0];
min=a[0];
}
if (a[i]>=max){
max=a[i];
}
if (a[i]<=min){
min=a[i];
}
sum+=a[i];
}
sum=sum-min-max;
aver=1.0*sum/(n-2);
printf("%.1lf\n",aver);

return 0;
}