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Reverse Nodes in Even Length Groups

Explore how to identify and reverse nodes in even-length groups of a linked list in place. This lesson helps you understand group assignments by natural numbers and develop efficient code for node reordering without extra space. Practice implementing this pattern to strengthen your linked list manipulation skills.

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:

  • The 1st1^{st} ...