各位大佬麻烦看看，蒟蒻不理解……

下面是代码

#include<iostream>
using namespace std;
int main()
{
	int n[50][50],m,a=0,b=2;
	cin>>m;
	int x=1,y=m/2+1;
	n[x][y]=1;
	for(int i=2;i<=m*m;i++){
		if(x==1&&y!=1){
			n[m][y+1]=b;
			x=m;
			y=y+1;
		}
		else if(y==m&&x!=1){
			n[x+1][1]=b;
			x=x+1;
			y=1;
		}
		else if(x==1&&y==m){
			n[x+1][y]=b;
			x=x+1;
		}
		else if(x!=1&&y!=m){
			if(n[x+1][y+1]==0){
				n[x+1][y+1]=b;
				x=x+1;
				y=y+1;
			}
			else{
				n[x][y+1]=b;
				y=y+1;
			}
		}
		b++;
	}
	for(int j=1;j<=m;j++){
		for(int k=1;k<=m;k++){
			cout<<n[k][x]<<" ";
		}
		cout<<endl;
	}
	return 0; 
}

感谢各位大佬的帮助