@[NaCl__H2O](/user/309369) 没初始化maxx，minn和sum吧
by StarLbright40 @ 2020-08-08 18:18:03
@[星光0000](/user/128570)
谢谢大佬，~~我现在AC两个点了QAQ~~
by NaCl__H2O @ 2020-08-08 18:25:16
@[NaCl__H2O](/user/309369) ~~换double~~
```
head[i]=sum/(m-2);
```
你sum和m都是int型的，就直接除啊（
by StarLbright40 @ 2020-08-08 18:28:16
@[星光0000](/user/128570)
az，换成float或者double就成20分了
~~QAQ~~
by NaCl__H2O @ 2020-08-08 18:33:36
@[星光0000](/user/128570)
```cpp
#include<bits/stdc++.h>
using namespace std;
int cj[10001][10001];
int n;
int m;
double maxx=0.0,minn=10000001.0;
double head[100001];
int sum=0;
int j;
double mxxx=0.0;
void hs(){
for(int i=1;i<=n;i++){
for(j=1;j<=m;j++){
if(cj[i][j]>maxx){
maxx=cj[i][j];
}
if(cj[i][j]<minn){
minn=cj[i][j];
}
sum+=cj[i][j];
}
sum=sum-minn-maxx;
maxx=0;
minn=0;
head[i]=sum/(m-2);
sum=0;
}
for(int i=1;i<n;i++){
for(int k=i+1;k<=n;k++){
if(head[i]<head[k]){
float temp=head[i];
head[i]=head[k];
head[k]=temp;
}
}
}
for(int i=1;i<=n;i++){
if(head[i]>mxxx)
mxxx=head[i];
}
printf("%.2lf",mxxx);
}
int main(){
cin>>n>>m;
for(int i=1;i<=n;i++){
for(int k=1;k<=m;k++){
cin>>cj[i][k];
}
}
hs();
return 0;
}
by NaCl__H2O @ 2020-08-08 18:35:33