下面就是这道题的解法,跟上面的方法一样一样的,就是在mergeTwoList时候是对linkedlist做,套用Merge 2 sorted list解法即可,代码如下: 1publicListNode mergeKLists(ArrayList<ListNode> lists) { 2if(lists==null|| lists.size()==0) 3returnnull; 4returnMSort(lists,0,lists.size()-1); 5} 6 7publicL...
Sample Solution: Java Code: importjava.util.*publicclassSolution{publicstaticvoidmain(String[]args){// Create two sorted linked listsListNodelist1=newListNode(1);list1.next=newListNode(3);list1.next.next=newListNode(7);list1.next.next.next=newListNode(9);list1.next.next.next.next=newListNod...
LeetCode第[21][23]题(Java):Merge Sorted Lists 题目:合并两个已排序链表 难度:Easy 题目内容: Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 翻译: 合并两个已排序的链表,并将其作为一个新链表返...
asked Dec 18, 2016 at 10:37 MikeJava 1333 bronze badges Add a comment 1 Answer Sorted by: 1 You are taking an index-based approach to a problem in which there is no use of index at all. In _sort(..), you call list.listIterator(index) every time and it in turn calls findNo...
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: Input: 1->2->4, 1->3->4 Output: 1->1->2->3->4->4 1. 2. 3.
题目:21. Merge Two Sorted Lists Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 翻译:合并两个排好序的链列,并将其作为新链表返回。新链表应通过将前两个列表的节点拼接在一起。
一个user要得到最新的tweets, 首先找到关注人,把他们的tweets消息列表存到PriorityQueue里,就变成了Merge k Sorted Lists. 这里用OOD是因为更接近现实情况。twitter就是一个用户看到关注人消息集合的媒体。 基本的entity就是消息tweets和用户user。 tweets要体现出时间线,就要模拟linkedlist。
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: Input:1->2->4, 1->3->4Output:1->1->2->3->4->4 思路: 合并两个有序链表,做法有两种,递归和迭代,递归的条件就是返回两个节点中...
[LeetCode] 23. Merge k Sorted Lists Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: AI检测代码解析 Input: [ 1->4->5, 1->3->4, 2->6 ] Output: 1->1->2->3->4->4->5->6...
23. Merge k Sorted Lists Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: Input:[ 1->4->5, 1->3->4, 2->6 ]Output:1->1->2->3->4->4->5->6 思路: 合并k个有序链表,采用分治的思想,时间复杂度O(nlogk) ...