[백준 Java] 심화 1 - 2444번: 별 찍기 - 7

 

 

import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        int N = Integer.parseInt(br.readLine());

        for (int i = 1; i <= N; i++) {
            for (int j = N - i; j > 0; j--) {
                bw.write(" ");
            }
            for (int j = 1; j <= 2 * i - 1; j++) {
                bw.write("*");
            }
            bw.newLine();
        }
        for (int i = 1; i <= N - 1 ; i++) {
            for (int j = 1; j <= i; j++) {
                bw.write(" ");
            }
            for (int j = 1; j <= 2 * (N - i) - 1; j++) {
                bw.write("*");
            }
            bw.newLine();
        }

        br.close();
        bw.flush();
        bw.close();
    }
}