Merge pull request #1255 from AlgorithmWithGod/LiiNi-coder

[20251028] PGM / LV2 / 괄호 회전하기 / 이인희

Author: ShinHeeEul

LiiNi-coder/202510/28 PGM 괄호 회전하기.md

@@ -0,0 +1,34 @@
+```java
+import java.util.*;
+class Solution {
+    public int solution(String s) {
+        char[] cs = s.toCharArray();
+        int answer = 0;
+        Deque<Character> q = new ArrayDeque<Character>();
+        for(int i = 0; i<s.length(); i++){
+            q = new ArrayDeque<Character>();
+            for(int d = 0; d<s.length(); d++){
+                
+                int id = (i+d) % s.length();
+                char now = cs[id];
+                Character pre = q.peekLast();
+                if(pre == null){
+                    q.offer(now);
+                }
+                else if(pre == '(' && now == ')'){
+                    q.pollLast();
+                }else if(pre == '{' && now == '}'){
+                    q.pollLast();
+                }else if(pre == '[' && now == ']'){
+                    q.pollLast();
+                }else{
+                    q.offer(now);
+                }
+            }
+            if(q.size() ==0)answer++;
+        }   
+        
+        return answer;
+    }
+}
+```