{ "data": { "question": { "questionId": "1000342", "questionFrontendId": "剑指 Offer II 078", "categoryTitle": "LCOF2", "boundTopicId": 910336, "title": "合并排序链表", "titleSlug": "vvXgSW", "content": "

English description is not available for the problem. Please switch to Chinese.

\n", "translatedTitle": "合并排序链表", "translatedContent": "

给定一个链表数组，每个链表都已经按升序排列。

\n\n

请将所有链表合并到一个升序链表中，返回合并后的链表。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：lists = [[1,4,5],[1,3,4],[2,6]]\n输出：[1,1,2,3,4,4,5,6]\n解释：链表数组如下：\n[\n  1->4->5,\n  1->3->4,\n  2->6\n]\n将它们合并到一个有序链表中得到。\n1->1->2->3->4->4->5->6\n
\n\n

示例 2：

\n\n
\n输入：lists = []\n输出：[]\n
\n\n

示例 3：

\n\n
\n输入：lists = [[]]\n输出：[]\n
\n\n

 

\n\n

提示：

\n\n\n\n

 

\n\n

注意：本题与主站 23 题相同： https://leetcode-cn.com/problems/merge-k-sorted-lists/

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0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n */\n/**\n * @param {ListNode[]} lists\n * @return {ListNode}\n */\nvar mergeKLists = function(lists) {\n\n};", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "# Definition for singly-linked list.\n# class ListNode\n# attr_accessor :val, :next\n# def initialize(val = 0, _next = nil)\n# @val = val\n# @next = _next\n# end\n# end\n# @param {ListNode[]} lists\n# @return {ListNode}\ndef merge_k_lists(lists)\n\nend", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * public var val: Int\n * public var next: ListNode?\n * public init() { self.val = 0; self.next = nil; }\n * public init(_ val: Int) { self.val = val; self.next = nil; }\n * public init(_ val: Int, _ next: ListNode?) { self.val = val; self.next = next; }\n * }\n */\nclass Solution {\n func mergeKLists(_ lists: [ListNode?]) -> ListNode? {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "/**\n * Definition for singly-linked list.\n * type ListNode struct {\n * Val int\n * Next *ListNode\n * }\n */\nfunc mergeKLists(lists []*ListNode) *ListNode {\n\n}", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "/**\n * Definition for singly-linked list.\n * class ListNode(_x: Int = 0, _next: ListNode = null) {\n * var next: ListNode = _next\n * var x: Int = _x\n * }\n */\nobject Solution {\n def mergeKLists(lists: Array[ListNode]): ListNode = {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "/**\n * Example:\n * var li = ListNode(5)\n * var v = li.`val`\n * Definition for singly-linked list.\n * class ListNode(var `val`: Int) {\n * var next: ListNode? = null\n * }\n */\nclass Solution {\n fun mergeKLists(lists: Array): ListNode? {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "// Definition for singly-linked list.\n// #[derive(PartialEq, Eq, Clone, Debug)]\n// pub struct ListNode {\n// pub val: i32,\n// pub next: Option>\n// }\n//\n// impl ListNode {\n// #[inline]\n// fn new(val: i32) -> Self {\n// ListNode {\n// next: None,\n// val\n// }\n// }\n// }\nimpl Solution {\n pub fn merge_k_lists(lists: Vec>>) -> Option> {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "/**\n * Definition for a singly-linked list.\n * class ListNode {\n * public $val = 0;\n * public $next = null;\n * function __construct($val = 0, $next = null) {\n * $this->val = $val;\n * $this->next = $next;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param ListNode[] $lists\n * @return ListNode\n */\n function mergeKLists($lists) {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "/**\n * Definition for singly-linked list.\n * class ListNode {\n * val: number\n * next: ListNode | null\n * constructor(val?: number, next?: ListNode | null) {\n * this.val = (val===undefined ? 0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n * }\n */\n\nfunction mergeKLists(lists: Array): ListNode | null {\n\n};", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "; Definition for singly-linked list:\n#|\n\n; val : integer?\n; next : (or/c list-node? #f)\n(struct list-node\n (val next) #:mutable #:transparent)\n\n; constructor\n(define (make-list-node [val 0])\n (list-node val #f))\n\n|#\n\n(define/contract (merge-k-lists lists)\n (-> (listof (or/c list-node? #f)) (or/c list-node? #f))\n\n )", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "%% Definition for singly-linked list.\n%%\n%% -record(list_node, {val = 0 :: integer(),\n%% next = null :: 'null' | #list_node{}}).\n\n-spec merge_k_lists(Lists :: [#list_node{} | null]) -> #list_node{} | null.\nmerge_k_lists(Lists) ->\n .", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "# Definition for singly-linked list.\n#\n# defmodule ListNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# next: ListNode.t() | nil\n# }\n# defstruct val: 0, next: nil\n# end\n\ndefmodule Solution do\n @spec merge_k_lists(lists :: [ListNode.t | nil]) :: ListNode.t | nil\n def merge_k_lists(lists) do\n\n end\nend", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"11.7K\", \"totalSubmission\": \"18.3K\", \"totalAcceptedRaw\": 11677, \"totalSubmissionRaw\": 18275, \"acRate\": \"63.9%\"}", "hints": [], "solution": null, "status": null, "sampleTestCase": "[[1,4,5],[1,3,4],[2,6]]", "metaData": "{\"name\": \"mergeKLists\", \"params\": [{\"name\": \"lists\", \"type\": \"ListNode[]\"}], \"return\": {\"type\": \"ListNode\"}}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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