Solution: Reverse Linked List
Explore how to reverse a singly linked list in-place by manipulating node pointers iteratively. Understand the use of three pointers to reverse links efficiently, achieving linear time and constant space complexity. Gain practical skills to implement this common linked list operation.
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