Solution: Reverse Linked List
Explore how to reverse a singly linked list by manipulating pointers in-place without extra memory. Understand initializing pointers, iterating through nodes, reversing links, and updating the head efficiently within a single pass. This lesson equips you with a practical approach to optimize linked list reversal for coding interviews.
Statement
Given the head of a singly linked list, reverse the linked list and return its updated head.
Constraints:
Let n be the number of nodes in a linked list.
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n