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Solution: Palindrome Linked List

Understand how to verify if a singly linked list is a palindrome by finding its midpoint with fast and slow pointers, reversing the second half, comparing both halves, and restoring the original list structure.

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 ...