From 52b285e1945bd9713472268b62c41ea73317971f Mon Sep 17 00:00:00 2001
From: s0___0k <61587396+s0ooo0k@users.noreply.github.com>
Date: Tue, 9 Sep 2025 17:23:55 +0900
Subject: [PATCH 1/3] Add palindromic substrings Solution - s0ooo0k

---
 palindromic-substrings/s0ooo0k.java | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 palindromic-substrings/s0ooo0k.java

diff --git a/palindromic-substrings/s0ooo0k.java b/palindromic-substrings/s0ooo0k.java
new file mode 100644
index 000000000..34193cab8
--- /dev/null
+++ b/palindromic-substrings/s0ooo0k.java
@@ -0,0 +1,22 @@
+class Solution {
+    // 팰린드롬의 경우 양쪽이 같아야 하므로, 중심을 잡고 left, right로 늘려나가는 방식
+    public int countSubstrings(String s) {
+        int cnt = 0;
+
+        for(int i=0; i<s.length(); i++) {
+            cnt += palindrom(s, i, i);
+            cnt += palindrom(s, i, i+1);
+        }
+        return cnt;
+    }
+    public int palindrom(String s, int left, int right) {
+        int cnt = 0;
+        while(left>=0 && right < s.length() && s.charAt(left)==s.charAt(right)) {
+            cnt++;
+            left--;
+            right++;
+        }
+        return cnt;
+    }
+}
+

From 0bc31feb00007f06e28cb64013b50530882cdf16 Mon Sep 17 00:00:00 2001
From: s0___0k <61587396+s0ooo0k@users.noreply.github.com>
Date: Thu, 11 Sep 2025 00:03:55 +0900
Subject: [PATCH 2/3] Add reverse bits Solution - s0ooo0k

---
 reverse-bits/s0ooo0k.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 reverse-bits/s0ooo0k.java

diff --git a/reverse-bits/s0ooo0k.java b/reverse-bits/s0ooo0k.java
new file mode 100644
index 000000000..38060f808
--- /dev/null
+++ b/reverse-bits/s0ooo0k.java
@@ -0,0 +1,12 @@
+class Solution {
+    public int reverseBits(int n) {
+        int result = 0;
+        for(int i = 0; i < 32; i++) {
+            result <<= 1;        
+            result |= (n & 1);   
+            n >>>= 1;            
+        }
+        return result;
+    }
+}
+

From c035853311e1ccf016f5a6fe7657b6a11de985fd Mon Sep 17 00:00:00 2001
From: s0___0k <61587396+s0ooo0k@users.noreply.github.com>
Date: Sun, 14 Sep 2025 19:42:47 +0900
Subject: [PATCH 3/3] Update palindromic-substrings/s0ooo0k.java

Co-authored-by: yhkee0404 <yhkee0404@gmail.com>
---
 palindromic-substrings/s0ooo0k.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/palindromic-substrings/s0ooo0k.java b/palindromic-substrings/s0ooo0k.java
index 34193cab8..5ad96b04d 100644
--- a/palindromic-substrings/s0ooo0k.java
+++ b/palindromic-substrings/s0ooo0k.java
@@ -4,12 +4,12 @@ public int countSubstrings(String s) {
         int cnt = 0;
 
         for(int i=0; i<s.length(); i++) {
-            cnt += palindrom(s, i, i);
-            cnt += palindrom(s, i, i+1);
+            cnt += palindrome(s, i, i);
+            cnt += palindrome(s, i, i+1);
         }
         return cnt;
     }
-    public int palindrom(String s, int left, int right) {
+    public static int palindrome(final String s, int left, int right) {
         int cnt = 0;
         while(left>=0 && right < s.length() && s.charAt(left)==s.charAt(right)) {
             cnt++;