From 374df9071f6ffa47b8078f8b8ee347f9b293ec45 Mon Sep 17 00:00:00 2001
From: Daiyong Kim <daiyongg.kim@gmail.com>
Date: Wed, 24 Dec 2025 16:47:47 -0800
Subject: [PATCH] adding reverse linkedlist

---
 reverse-linked-list/daiyongg-kim.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 reverse-linked-list/daiyongg-kim.py

diff --git a/reverse-linked-list/daiyongg-kim.py b/reverse-linked-list/daiyongg-kim.py
new file mode 100644
index 0000000000..78c0c11d4c
--- /dev/null
+++ b/reverse-linked-list/daiyongg-kim.py
@@ -0,0 +1,20 @@
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+
+class Solution:
+    def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]:
+        curr = head
+        prev = None
+
+        # Time Complexity : O(n)
+        # Space Complexity : O(1)
+        while curr:
+            temp = curr.next
+            curr.next = prev
+            prev = curr
+            curr = temp
+
+        return prev