add complexity

jylee2033 · jylee2033 · commit e75cdd4b5fff · 2026-04-17T11:56:36.000-07:00
diff --git a/reverse-linked-list/jylee2033.py b/reverse-linked-list/jylee2033.py
@@ -22,3 +22,6 @@ def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]:
         # Handle the last node
         cur.next = prev
         return cur
+
+# Time Complexity: O(n)
+# Space Complexity: O(1)
