为啥只有70分？

#include <stdio.h>
#include <math.h>

double MAX(double a,double b)  {double max1; max1=a;if(b>a)max1=b;return max1;}
int main()
{
    int n;
    scanf("%d",&n);
    double a[301]={0};
    int i,j;
    double sum=0;
    double max=-10000000,min=99999999;
    for(i=1;i<=n;i++)
    {

        scanf("%lf",&a[i]);

        if(a[i]>max) max=a[i];
        if(a[i]<min) min=a[i];
        sum+=a[i];
    }
    sum-=max+min;
    double ave=sum/(n-2);
    int n1=0,n2=0;      

    for(i=1;i<=n;i++)
    {
        if(a[i]==max)
        {
            n1++;
            a[i]=-10000000;
        }
        if(a[i]==min)
        {
            n2++;
            a[i]=-10000000;
        }
    }
    double wu=0;
    for(i=1;i<=n;i++)
    {
        if(n1>1&&n2<=1&&a[i]!=-10000000)
        {
            wu=MAX(fabs(ave-max),fabs(ave-a[i]));
        }
            else if(n1<=1&&n2>1&&a[i]!=-10000000){

            wu=MAX(fabs(ave-min),fabs(ave-a[i]));
             }
            else if(n1>1&&n2>1)
            {
            wu=MAX(fabs(ave-max),fabs(ave-min));
            }
        else if (fabs(a[i]-ave)>wu&&a[i]!=-10000000) {
        wu=fabs(a[i]-ave);}
    }
    printf("%.2lf %.2lf",ave,wu);
    return 0;
}