The JavaSetsallow only unique elements. When we push both lists in aSetand theSetwill represent a list of all unique elements combined. In our example, we are usingLinkedHashSetbecause it will preserve the element’sorder as well. ArrayList<String>listOne=newArrayList<>(Arrays.asList("a","...
Write a Java program to create a generic method that merges two lists by alternating elements and appends remaining elements if sizes differ. Write a Java program to create a generic method that interleaves two lists and then sorts the merged list using a provided comparator. Write a Java progr...
Write a Java program to merge the two sorted linked lists. 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.n...
Java [leetcode 21]Merge Two Sorted Lists 题目描述: 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. 解题思路: 题目的意思是将两个有序链表合成一个有序链表。 逐个比较加入到新的链表即可。 代码如...
分析:合并两个有序序列,这个归并排序中的一个关键步骤。这里是要合并两个有序的单链表。由于链表的特殊性,在合并时只需要常量的空间复杂度。 编码: publicListNode mergeTwoLists(ListNode l1, ListNode l2) {if(l1 ==null&& l2 ==null)returnnull;if(l1 ==null&& l2 !=null)returnl2;if(l2 ==null&& ...
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. 依次拼接 复杂度 时间O(N) 空间 O(1) 思路 该题就是简单的把两个链表的节点拼接起来,我们可以用一个Dummy头,将比较过后的节点接在这个Dummy头之后。
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.
* public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ class Solution public ListNode mergeTwoLists(ListNode l1, ListNode l2) { if(l1 == null) return l2; if(l2 == null) return l1; ...
You are given the heads of two sorted linked lists list1 and list2. Merge the two lists in a one sorted list. The list should be made by splicing together the nodes of the first two lists. Return the head of the merged linked list. Example 1: 代码语言:javascript 代码运行次数:0 运行...
return mergeTwoLists(one, two); } public ListNode mergeTwoLists(ListNode node1, ListNode node2) { ListNode head = new ListNode(-1), node = head; while (node1 != null && node2 != null) { if (node1.val < node2.val) {