改进mergeTwoLists方法,以在开始时检查空链表。 class ListNode: def __init__(self, x): self.val = x self.next = None # 改进后的将给出的数组转换为链表的函数 def linkedlist(list): if not list: # 检查列表是否为空 return None # 空列表返回None head = ListNode(list[0]) cur = head for...
publicListNode mergeTwoLists(ListNode l1, ListNode l2) {ListNode dummy =newListNode(0); ListNode lastNode=dummy;while(l1 !=null&& l2 !=null) {if(l1.val <l2.val) { lastNode.next=l1; l1=l1.next; }else{ lastNode.next=l2; l2=l2.next; } lastNode=lastNode.next; }if(l1 !=null) ...
Link:https://leetcode.com/problems/merge-two-sorted-lists/ 双指针 O(N) 比较两个链表头,把小的拿出来放到新的链表中 # Definition for singly-linked list.# class ListNode:# def __init__(self, val=0, next=None):# self.val = val# self.next = nextclassSolution:defmergeTwoLists(self,l1:...
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: 1)定义l,每次l指向两个链表中小的那个节点,定义head为头指针,定义ptr,将l依次连成链表 2)两个链表均不为空,将其小的值赋给l 3)将其中节...
Merge Two Sorted Link 合并两个有序链表 英文原题 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...
leetcode 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. Example: Input: 1->2->4, 1->3->4 Output: 1->1->2->3->4->4...
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. <a href="https://leetcode.com/problems/merge-two-sorted-lists/" target="_blank">Leetcode Link</a> ...
1、题目 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. 合并2个有序链表 2、代码实现 /** * Definition for singly-linked list. * public class ListNode { ...
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...
Write a Java program to create a generic method that takes two lists of the same type and merges them into a single list. This method alternates the elements of each list. Sample Solution:Java Code:// ReverserList.java // ReverserList Class import java.util.ArrayList; import java.util....