백준2444: 별 찍기 - 7

문제

https://www.acmicpc.net/problem/2444

문제 풀이

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n - i - 1; j++) {
                System.out.print(" ");
            }

            for (int j = 0; j < i * 2 + 1; j++) {
                System.out.print("*");
            }
            System.out.println();
        }

        for (int i = n - 1; i >= 0; i--) {
            for (int j = 0; j < n - i; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < i * 2 - 1; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}