大家帮忙看看怎么写急！

先排个序就好了啊

double fun(doule a[],int n)
{
    double sum = 0;
    double max,min;
    for(int i=0;i<n;i++)
    {
        if(i==0)
        {
            min = a[i];
            max = a[i];
        }
        else
        {
            if(min > a[i])
                min = a[i];
            if(max < a[i])
                max = a[i];
        }
         sum += a[i];
    }
    return (sum-min-max)/n;
}