gogogo,出发咯

#include <bits/stdc++.h>
using namespace std;

int main() {
int n;
scanf("%d", &n);
int a[101][101]={{0}};
int x = 1,y = 1;
int num = 1;
if(n == 1){
printf("1");
return 0;
}
while(a[x][y] == 0){
while(y <= n && a[x][y] == 0){
a[x][y] = num++;
y++;
}
y--;
x++;
while(x <= n && a[x][y] == 0){
a[x][y] = num++;
x++;
}
x--;
y--;
while(y >= 1 && a[x][y] == 0){
a[x][y] = num++;
y--;
}
y++;
x--;
while(x >= 1 && a[x][y] == 0){
a[x][y] =num++;

			x--;
		}
		x++;
		y++;
	}
	for(int i = 1;i <= n;i++){
		for(int j = 1;j <= n;j++){
			printf("%d ", a[i][j]);
		}
		printf("\n");
	}
        
	
	
	

return 0;

}