You are given an array of k linked-lists lists, each linked-list is sorted in ascending order. Merge
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Question:
You are given an array of k linked-lists lists, each linked-list is sorted in ascending order.
Merge all the linked-lists into one sorted linked-list and return it.
Example 1:
Input: lists = [[1,4,5],[1,3,4],[2,6]]Output: [1,1,2,3,4,4,5,6]Explanation: The linked-lists are: [ 1->4->5, 1->3->4, 2->6 ]merging them into one sorted list: 1->1->2->3->4->4->5->6Example 2:
Input: lists = []Output: []Example 3:
Input: lists = [[]]Output: []
Constraints:
- k == lists.length
- 0
Related Book For
Introduction to Algorithms
ISBN: 978-0262033848
3rd edition
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
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