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Solution: Merge K Sorted Lists

Understand how to merge multiple sorted linked lists into one using a k-way merge approach. This lesson teaches you to apply a divide-and-conquer strategy to pairwise merge the lists efficiently, improving your coding interview skills with linked list problems.

Statement

You are given an array, lists, containing k singly linked lists. Each of these linked lists is individually sorted in ascending order.

Your task is to merge all k linked lists into a single sorted linked list in ascending order and return the merged list.

Constraints:

  • k ==== lists.length

  • ...