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Solution: Merge K Sorted Lists

Explore the K-way merge pattern to efficiently merge multiple sorted linked lists into a single sorted list. This lesson teaches how to apply divide-and-conquer techniques and two-pointer merging to solve the problem with O(n log k) time complexity.

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

  • ...