From 8ab40da46357fce03c22081a139881641b12d516 Mon Sep 17 00:00:00 2001
From: zinnnn37 <zinnnn37@gmail.com>
Date: Thu, 21 Aug 2025 22:11:44 +0900
Subject: [PATCH] =?UTF-8?q?[20250821]=20BOJ=20/=20G4=20/=20=EB=B3=84=20?=
 =?UTF-8?q?=EC=B0=8D=EA=B8=B0=20-=2018=20/=20=EA=B9=80=EB=AF=BC=EC=A7=84?=
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---
 ...\263\204 \354\260\215\352\270\260 - 18.md" | 88 +++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 "zinnnn37/202508/21 BOJ G4 \353\263\204 \354\260\215\352\270\260 - 18.md"

diff --git "a/zinnnn37/202508/21 BOJ G4 \353\263\204 \354\260\215\352\270\260 - 18.md" "b/zinnnn37/202508/21 BOJ G4 \353\263\204 \354\260\215\352\270\260 - 18.md"
new file mode 100644
index 00000000..6a5c2c30
--- /dev/null
+++ "b/zinnnn37/202508/21 BOJ G4 \353\263\204 \354\260\215\352\270\260 - 18.md"	
@@ -0,0 +1,88 @@
+```java
+import java.io.*;
+
+public class BJ_10933_별_찍기_18 {
+
+	private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+	private static int N;
+	private static int height;
+	private static int width;
+
+	private static char[][] mat;
+
+	public static void main(String[] args) throws IOException {
+		init();
+		sol();
+	}
+
+	private static void init() throws IOException {
+		N      = Integer.parseInt(br.readLine());
+		height = (int) (Math.pow(2, N) - 1);
+		width  = height * 2 - 1;
+
+		mat = new char[height][width];
+	}
+
+	private static void sol() throws IOException {
+		rec(N, 0, 0);
+		printMat();
+	}
+
+	private static void rec(int n, int x, int y) {
+		if (n == 1) {
+			mat[x][y] = '*';
+			return;
+		}
+
+		int h = (int) (Math.pow(2, n) - 1);
+		int w = h * 2 - 1;
+
+		if (n % 2 == 1) {
+			for (int i = 0; i <= w / 2; i++) {
+				mat[x + h - i - 1][y + i]             = '*';
+				mat[x + h - i - 1][y + h * 2 - i - 2] = '*';
+				mat[x + h - 1][y + i]                 = '*';
+				mat[x + h - 1][y + h * 2 - i - 2]     = '*';
+			}
+			rec(n - 1, x + h / 2, y + w / 4 + 1);
+		} else {
+			for (int i = 0; i <= w / 2; i++) {
+				mat[x][y + i]                 = '*';
+				mat[x][y + h * 2 - i - 2]     = '*';
+				mat[x + i][y + i]             = '*';
+				mat[x + i][y + h * 2 - i - 2] = '*';
+			}
+			rec(n - 1, x + 1, y + w / 4 + 1);
+		}
+	}
+
+	private static void printMat() throws IOException {
+		for (char[] chars : mat) {
+			// 각 줄에서 마지막 '*'의 위치 찾기
+			int lastStar = -1;
+			for (int i = chars.length - 1; i >= 0; i--) {
+				if (chars[i] == '*') {
+					lastStar = i;
+					break;
+				}
+			}
+
+			// 마지막 별까지만 출력
+			for (int i = 0; i <= lastStar; i++) {
+				if (chars[i] == '*') {
+					bw.write('*');
+				} else {
+					bw.write(' ');
+				}
+			}
+			bw.write("\n");
+		}
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+
+}
+```
\ No newline at end of file