[20250921] BOJ / G5 / 애너그램 / 김민진

Author: zinnnn37

zinnnn37/202509/21 BOJ G5 애너그램.md

@@ -0,0 +1,55 @@
+```java
+import java.io.*;
+
+public class BJ_6443_애너그램 {
+
+	private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+	private static String input;
+	private static int    length;
+	private static int[]  alphabets;
+	private static char[] result;
+
+	public static void main(String[] args) throws IOException {
+		int T = Integer.parseInt(br.readLine());
+
+		while (T-- > 0) {
+			sol();
+		}
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+
+	private static void sol() throws IOException {
+		input     = br.readLine();
+		length    = input.length();
+		alphabets = new int[26];
+		result    = new char[length];
+
+		for (int i = 0; i < length; i++) {
+			alphabets[input.charAt(i) - 'a']++;
+		}
+
+		perm(0);
+	}
+
+	private static void perm(int depth) throws IOException {
+		if (depth == length) {
+			bw.write(result);
+			bw.write('\n');
+			return;
+		}
+
+		for (int i = 0; i < 26; i++) {
+			if (alphabets[i] > 0) {
+				alphabets[i]--;
+				result[depth] = (char) (i + 'a');
+				perm(depth + 1);
+				alphabets[i]++;
+			}
+		}
+	}
+}
+```