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Solution: Palindrome Linked List

Explore the method to check whether a singly linked list is a palindrome by mastering fast and slow pointer techniques. Understand how to find the midpoint, reverse the second half for comparison, and restore the list's original structure without extra memory usage.

Statement

Given the head of a linked list, your task is to check whether the linked list is a palindrome or not. Return TRUE if the linked list is a palindrome; otherwise, return FALSE.

Note: The original structure of the linked list must remain unchanged before and after the checking process.

Constraints:

Let n be the number of nodes in a linked list.

  • 11 \leq n 500\leq 500 ...