题解 | #X形图案#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while(in.hasNextInt()){
            int n = in.nextInt();
            for (int i = 0; i < n; i++){
                for (int j = 0; j < n; j++){
                    if (j == i || j == n - 1 - i){
                        System.out.print('*');
                    }else{
                        System.out.print(' ');
                    }
                }
                System.out.print("\n");
            }
        }
        

    }
}