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Published: Feb 20, 2024 License: MIT Imports: 1 Imported by: 0

README

合并 K 个升序链表

给你一个链表数组,每个链表都已经按升序排列。

请你将所有链表合并到一个升序链表中,返回合并后的链表。

示例 1:

输入:lists = [[1,4,5],[1,3,4],[2,6]]
输出:[1,1,2,3,4,4,5,6]
解释:链表数组如下:
[
  1->4->5,
  1->3->4,
  2->6
]
将它们合并到一个有序链表中得到。
1->1->2->3->4->4->5->6

示例 2:

输入:lists = []
输出:[]

示例 3:

输入:lists = [[]]
输出:[]

提示:

  • k == lists.length
  • 0 <= k <= 10^4
  • 0 <= lists[i].length <= 500
  • -10^4 <= lists[i][j] <= 10^4
  • lists[i]升序 排列
  • lists[i].length 的总和不超过 10^4

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