๐Ÿ“Œ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์ค€๋น„ :: ๋ฐฑ์ค€16974 :: ์žฌ๊ท€ - ๋ณ„์ฐ๊ธฐ-19๐Ÿ‘€

Dev-Oยท2022๋…„ 1์›” 29์ผ
0

CodingTest

๋ชฉ๋ก ๋ณด๊ธฐ
7/18

๋ฌธ์ œ


ํ•ด์„

์žฌ๊ท€๋กœ ๊ทธ๋ฆผ์˜ ๊ทœ์น™๋Œ€๋กœ ์ฐ์œผ๋ฉด ๋œ๋‹ค.
๋ฐฐ์—ด์„ ์„ ์–ธํ•ด์„œ ์ž…๋ ฅ ๋ฐ›์€ ์ˆ˜ ๋งŒํผ 2์ฐจ์› ๋ฐฐ์—ด ๊ธธ์ด๋ฅผ ์ดˆ๊ธฐํ™” ํ•ด์ค€๋‹ค.
์ž…๋ ฅ๊ฐ’์ด 1 ๋Š˜์–ด๋‚  ๋•Œ๋งˆ๋‹ค ํ•œ๋ณ€์˜ ๊ธธ์ด๊ฐ€ 1+(n-1)*4์”ฉ ๋Š˜์–ด๋‚œ๋‹ค.(์ •์‚ฌ๊ฐํ˜•)

์ด๊ฑธ ํ™œ์šฉํ•ด์„œ ์ œ์ผ ๋ฐ”๊นฅ๋ถ€๋ถ„(0, 0)์œ„์น˜ ๋ถ€ํ„ฐ ์„ ๋„ฃ์–ด์ฃผ๊ณ 
์‹œ์ž‘์œ„์น˜๋ฅผ (2++,2++) ํ•ด์ฃผ๋ฉด ์•ˆ์ชฝ์—์„œ ๋‹ค์‹œ ๊ณ„์† ์žฌ๊ท€๋ฅผ ๋ถ€๋ฅธ๋‹ค.
๊ทธ๋ฆฌ๊ณ  N์ด๋˜๋ฉด ๊ทธ๋•Œ๋‹น์‹œ ์‹œ์ž‘์œ„์น˜์—
ํ•˜๋‚˜ ๋„ฃ์–ด์ฃผ๋ฉด ๋์ด๋‹ค.

๊ทœ์น™๋งŒ ์•Œ๋ฉด ์‰ฝ๊ฒŒ ํ’€ ์ˆ˜ ์žˆ๋Š” ๋ฌธ์ œ ๊ฐ™๋‹ค.


์ฝ”๋“œ

package Reculsive;

import java.util.Scanner;

public class Bj10994_star19 {
	private static String [][] star;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		//1, 5, 9, 13,...
		//1+(N-1)*4;
		int N = sc.nextInt();
		int format = 1+(N-1)*4;
		star = new String[format][format];//2 [5][10];
		
		for(int i = 0 ; i < star.length; i++) {
			for(int j = 0; j < star[i].length ; j ++) {
				star[i][j] = " ";
			}
		}
		
		int startI = 0, startJ = 0;
		star(N, startI, startJ);
		
		
		for(int i = 0 ; i < star.length; i++) {
			for(int j = 0; j < star[i].length ; j ++) {
				System.out.print(star[i][j]);
			}
			System.out.println();
		}
		//5 -> 10
	}
	public static void star(int N, int startI, int startJ) {
		int format = 1+(N-1)*4;
		if(N==1) {
			star[startI][startJ] = "*";
			return;
		}else {
			for(int i = startI ; i<format+startI; i++) {//0์ผ๋• ~ํ˜๋Ÿฌ๊ฐ€๊ณ  5
				for(int j = startJ; j<format +startJ; j++) {
					if(i==startI||i==(format)-1+startI) star[i][j] = "*";
					else {
						if(j==startJ||j==format-1+startJ) star[i][j] = "*";
					}
				}
			}
			star(N-1, startI+2, startJ+2);
	}
	

	}
	
	
	

}
profile
Being Outstanding needs Understanding๐Ÿš€

0๊ฐœ์˜ ๋Œ“๊ธ€