Solution: Palindrome Linked List
Explore how to verify if a singly linked list is a palindrome by using fast and slow pointers to find the middle, reversing the second half, comparing both halves, and then restoring the list to its original structure. Understand this approach’s time and space efficiencies and apply it in coding interviews.
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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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