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Grokking the Coding Interview Patterns in JavaScript

Solution: Reverse Nodes in Even Length Groups

Understand how to reverse nodes in even-length groups within a linked list using in-place techniques. Learn to efficiently manipulate linked list pointers while preserving odd-length groups, preparing you to handle similar coding interview problems with optimized time and space complexity.

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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: ...