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Solution: Reverse Nodes in Even Length Groups

Explore an in-place algorithm to reverse nodes in even-sized groups within a linked list. Understand how to manipulate pointers to reorder nodes efficiently while preserving odd groups. This lesson guides you through sequential group formation, node counting, and targeted reversal using constant space and linear time complexity.

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...).

In other words: ...