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Solution: Reorder List

Understand how to reorder a singly linked list by locating its middle node, reversing the second half, and merging the two halves alternately. This lesson teaches you an in-place approach with linear time and constant space complexity, helping you master linked list manipulation techniques.

Statement

Given the head of a singly linked list, reorder the list as if it were folded on itself. For example, if the list is represented as follows:

L0L_{0} ...