-``` #include"stdio.h"

int main() { int a[100][100]; float b[100]; int i,j; int n,m;

scanf("%d%d",&n,&m);
for( i = 0; i < n; i++)
{
    for( j = 0; j < m; j++)
    {
        scanf("%d",&a[i][j]);
    }
}

int max=a[0][0];
int min=a[0][0];
int sum=0;

for( i = 0; i < n; i++)
{
    for( j = 0; j < m; j++)
    {
        if(max < a[i][j])  
            max =a[i][j];
        if(min > a[i][j])
            min = a[i][j];
        sum += a[i][j];
    }
    b[i] = (sum - min - max) / (m-2);
    max = 0;
    min = 0;
    sum = 0;
}
float t = b[0];
for( i = 0; i < n; i++)
{
    if( t < b[i] )
        t = b[i];
}
printf("%.2f",t);

}