553 : 반복제어문3 - 자가진단6

Java

import java.util.Scanner;
 
public class Main {
    public static void main (String[] arg) {
        Scanner sc = new Scanner(System.in);
        int line = sc.nextInt();
        char ch = 'A';
 
        for (int i=0; i<line; i++) {
            for (int j=line; i<j; j--)
                System.out.printf("%c", ch++);
            System.out.print('\n');
        }
    }
}