题解 | #字符圣诞树#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char c = sc.next().charAt(0);
        for (int i = 1; i <= 5; i++) {
            for (int k = 0; k < 5-i; k++) {
                System.out.print(" ");
            }
            for (int j = 1; j <= i; j++) {

                System.out.print(c + " ");
            }
            System.out.println();
        }
    }
}