题解 | #反斜线形图案#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNextInt()) {
            int n = scan.nextInt();
            int[][] arr = new int[n][n];
            for(int i = 0; i < arr.length; i++) {
                for(int j = 0; j < arr[i].length; j++) {
                    if(i == j) {
                        System.out.print("*");
                    } else {
                        System.out.print(" ");
                    }
                }
                System.out.println();
            }
        }
    }
}