[20250204] BOJ / 실버2 / 별찍기 - 22 / 설진영

Seol-JY/202502/04 BOJ S2 별찍기 - 22

@@ -0,0 +1,63 @@
+```java
+import java.io.*;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int N = Integer.parseInt(br.readLine());
+
+       if (N == 1) {
+           System.out.println("*");
+           return;
+       }
+
+       char[][] map = new char[3 + 4 * (N-1)][1 + 4 * (N-1)];
+       for (int i = 0; i < 3+4*(N-1); i++) {
+           for (int j = 0; j < 1+4*(N-1); j++) {
+               map[i][j] = ' ';
+           }
+       }
+
+       int r = N * 2;
+       int c = N * 2 - 2;
+       int directionR = 1;
+       int directionC = -1;
+       int weight = 1;
+       for (int i = 0; i < 1+4*(N-1); i++) {
+           if (i % 2 == 0) {
+               directionR *= -1;
+               weight += 2;
+               for (int j = 0; j < weight; j++) {
+                   r = j!=0 ? r + directionR : r;
+                   map[r][c] = '*';
+               }
+           } else {
+               directionC *= -1;
+               for (int j = 0; j < weight; j++) {
+                   c = j!=0 ? c + directionC : c;
+                   map[r][c] = '*';
+               }
+           }
+       }
+
+       BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+       for (int i = 0; i < 3+4*(N-1); i++) {
+           for (int j = 0; j < 1+4*(N-1); j++) {
+               if (i == 0) {
+                   bw.write("*");
+                   continue;
+               }
+               if (i == 1 && j >= 1) continue;
+               if (j == 4*N - 4) {
+                   bw.write(map[i][j]);
+               } else {
+                   bw.write(map[i][j]);
+               }
+           }
+           bw.write("\n");
+       }
+       bw.flush();
+       bw.close();
+    }
+}
+```