#include<iostream>
#include<cstdio>

using namespace std;

int a[10][10];

int main(){
	int n,now = 2,i = 1,j = 1;
	cin>>n;
	a[1][1] = 1;
	while(now<=n*n){
		//向右 a[i][j]  i不变 j++
		while(j + 1<=n&&a[i][j+1] == 0){
			j++;
			a[i][j] = now;
			now++;
		}
		//向下 i++,j不变
		while(i + 1 <= n&&a[i+1][j] == 0){
			i++;
			a[i][j] = now;
			now++;
		}
		//向左 i不变，j--
		while(j - 1 >= 1 &&a[i][j-1] == 0){
			j--;
			a[i][j] = now;
			now++;
		}
		//向上 i-- ,j不变 
		while(i - 1 >= 1&&a[i-1][j] == 0){
			i--;
			a[i][j] = now;
			now++;
		}
	}
	for(int x = 1;x<=n;x++){
		for(int y = 1;y<=n;y++){
//			cout<<setw(3)<<a[x][y];
			printf("%3d",a[x][y]);
		}
		cout<<endl;
	}
	
	return 0;
} 

#include #include #include #include

using namespace std; int main(){ int h[100][100],n,k=1,a,b,c,d,e=1;//右//下 ←上 cin>>n; int A=n,B=n,C=n,D=n,E=2,F=1; a=1; b=n; c=n; d=1; e=1; if(n==1){ cout<<setw(3)<<1; }else{ for(int i=1;i<=n/2+1;i++){ for(int j=a;j<=A;j++){ h[a][j]=e; e++; } a++; A--; for(int j=E;j<=B;j++){ h[j][b]=e; e++; } b--; B--; E++; for(int j=C-1;j>=F;j--){ h[c][j]=e; e++; } F++; c--; C--; for(int j=D-1;j>=a;j--){ h[j][d]=e; e++; } d++; D--; } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cout<<setw(3)<<h[i][j]; } cout<<endl; } } return 0; }