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Solution: Merge K Sorted Lists

Explore the divide-and-conquer technique to merge multiple sorted linked lists into a single sorted list. This lesson helps you implement pairwise merges using two pointers, improving efficiency with a time complexity of O(n log k). Understand how to apply this pattern to solve complex K-way merge problems in coding interviews.

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

  • ...