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Solution: Reorder List

Explore how to reorder a singly linked list by folding it onto itself using in-place techniques. This lesson guides you through finding the middle node, reversing the second half, and merging both halves with a linear time and constant space solution. Understand how to manipulate linked list pointers efficiently in C# for optimal performance.

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}L1L_{1}L2L_{2} → … → Ln2L_{n-2}Ln1L_{n-1} ...