Solution: Palindrome Linked List
Understand how to verify if a singly linked list is a palindrome by locating its midpoint with fast and slow pointers, reversing the second half, comparing both halves, and restoring the list. This approach ensures the list structure remains unchanged while achieving O(n) time and O(1) space complexity.
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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.
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