[20260226] BOJ / G5 / A와 B 2 / 이준희

Author: JHLEE325

JHLEE325/202602/26 BOJ G5 A와 B 2.md

@@ -0,0 +1,39 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    static String S, T;
+    static int answer = 0;
+
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        S = br.readLine();
+        T = br.readLine();
+
+        solve(T);
+        System.out.println(answer);
+    }
+
+    static void solve(String cur) {
+        if (cur.length() == S.length()) {
+            if (cur.equals(S)) {
+                answer = 1;
+            }
+            return;
+        }
+
+        if (answer == 1) return;
+
+        if (cur.charAt(cur.length() - 1) == 'A') {
+            solve(cur.substring(0, cur.length() - 1));
+        }
+
+        if (cur.charAt(0) == 'B') {
+            String next = cur.substring(1);
+            StringBuilder sb = new StringBuilder(next);
+            solve(sb.reverse().toString());
+        }
+    }
+}
+```