Solution: Merge K Sorted Lists
Explore a divide and conquer method to merge multiple sorted linked lists into a single sorted linked list efficiently. This lesson teaches you to pairwise merge lists using two pointers and a dummy node, resulting in an O(n log k) time complexity and constant space usage. Understand the algorithm's stepwise merging process and implement the Merge2Lists helper function for systematic merging.
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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:
klists.lengthklists[i].length...