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Solution: Reverse Nodes in Even Length Groups

Explore how to reverse nodes in even-length groups within a linked list by manipulating pointers in-place. Understand the algorithm that efficiently reverses groups with even nodes while preserving odd groups, using O(n) time and O(1) space complexity. This lesson guides you through the step-by-step pointer adjustments needed to achieve the reversal without extra storage.

Statement

Given the head of a linked list, the nodes in it are assigned to each group in a sequential manner. The length of these groups follows the sequence of natural numbers. Natural numbers are positive whole numbers denoted by (1,2,3,4...)(1,2,3,4...).

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