Time: 295 ms (49.62%) | Memory: 37 MB (26.49%) - LeetSync

234-palindrome-linked-list/palindrome-linked-list.py

@@ -0,0 +1,18 @@
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def isPalindrome(self, head: Optional[ListNode]) -> bool:
+        list_vals = []
+        while head:
+            list_vals.append(head.val)
+            head = head.next
+
+        left, right = 0, len(list_vals) - 1
+        while left < right and list_vals[left] == list_vals[right]:
+            left += 1
+            right -= 1
+        return left >= right
+