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Grokking the Coding Interview Patterns in Go

Solution: Split Linked List in Parts

Discover how to split a linked list into k nearly equal parts while preserving node order. Understand how to calculate part sizes, distribute extra nodes, and create sub-lists iteratively. This lesson helps you implement an efficient solution with O(n) time complexity and in-place manipulation.

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Statement

You are given head of a singly linked list and an integer, k. Your task is to split the linked list into k consecutive parts.

  • Each part should have a size as equal as possible, with the difference between any two parts being at most 11.

  • If the list cannot be evenly divided, the earlier parts should have more nodes than the later ones.

  • Any parts that cannot be filled with nodes should be represented as NULL.

  • The parts must appear in the same order as in the input-linked list.

Return an array of the k parts, maintaining the specified conditions.

Constraints:

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