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Grokking the Coding Interview Patterns in Python

Reverse Nodes in Even Length Groups

Explore how to reverse nodes grouped by natural number sequences within a linked list. Understand and apply in-place manipulation techniques to efficiently reverse even-length groups while maintaining optimal memory usage.

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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...) ...