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Solution: Split Linked List in Parts

Explore how to efficiently split a singly linked list into k consecutive parts, ensuring size differences between parts are at most one node, and maintain the original list order. This lesson teaches you how to calculate part sizes, traverse the list, and cut it into the appropriate segments. You will understand how to handle uneven splits by distributing extra nodes to earlier parts, as well as how to work with cases where parts are empty. By completing this lesson, you will master an in-place linked list manipulation technique that is both time and space efficient.

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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