Solution: Reverse Linked List
Explore reversing a singly linked list by manipulating pointers in-place for an efficient O(n) time and O(1) space solution. Understand key steps like initializing pointers, iterating to reverse links, and updating the head pointer to return the reversed list. This lesson helps you implement a space-efficient approach vital for coding interviews and real-world linked list operations.
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