### @[ammmmmgoding](/user/1104314) 我的代码什么都不对，但能过第三个
### 也顺便求调
```cpp
#include<bits/stdc++.h>
using namespace std;
int n,a[40][40],numx[1600],numy[1600];
int main(){
//freopen("hf.in","r",stdin);
//freopen("hf.out","w",stdout);
cin>>n;
a[1][n/2+1]=1;
numx[1]=1;
numy[1]=n/2+1;
for(int i=2;i<=n;i++){
if(numx[i-1]==1&&numy[i-1]!=n){
numx[i]=n;
numy[i]=numy[i-1]+1;
}
else if(numx[i-1]!=1&&numy[i-1]==n){
numx[i]=numx[i-1]-1;
numy[i]=1;
}
else if(numx[i-1]==1&&numy[i-1]==n){
numx[i]=numx[i-1]+1;
numy[i]=numy[i-1];
}
else{
if(a[numx[i-1]-1][numy[i-1]+1]==0){
numx[i]=numx[i-1]-1;
numy[i]=numy[i-1]+1;
}
else{
numx[i]=numx[i-1]+1;
numy[i]=numy[i-1];
}
}
a[numx[i]][numy[i]]=i;
}
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
cout<<a[i][j]<<" ";
}
cout<<endl;
}
return 0;
}
```
by realheizi @ 2023-10-31 17:23:35
@[xuzichen123](/user/780067) 难兄难弟
by ywhhdhy @ 2023-12-23 21:12:52