本人AC代码如下(仅供参考,不可抄袭!):
```cpp
#include<bits/stdc++.h>
using namespace std;
int n,m,a[30];
double ans;
int main(){
cin>>n>>m;
while(n--){
double sum=0,cnt=0,tmp;
for(int i=1; i<=m; i++) cin>>a[i];
sort(a+1,a+1+m);
for(int i=2; i<m; i++){
sum+=a[i];
cnt++;
}
tmp=sum/cnt;
ans=max(tmp,ans);
}
printf("%.2lf",ans);
return 0;
}
```
by daijingxiang @ 2024-02-14 18:08:26