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...
*@returnListNode */functionmergeTwoLists($list1,$list2){$res=null;$this->merge($list1,$list2,$res);return$res; }functionmerge($l1,$l2, &$node){if(null==$l1&&null==$l2)return;$node=newListNode();if(null==$l1) {$node->val =$l2->val;$this->merge(null,$l2->next,$node->...
输入:1->2->4, 1->3->4 输出:1->1->2->3->4->4 解题思路 1.声明一个新链表l;2.判空l1和l2,有空就返回另一个链表;3.对比l1和l2的第一个节点数值,把数值小的加入新链表l;4.重复执行3,直到有一个链表为空,把非空链表加入l5.返回。 代码 class Solution { public: ListNode*mergeTwoLists(...
# class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def mergeTwoLists(self, list1: Optional[ListNode], list2: Optional[ListNode]) -> Optional[ListNode]: # 使用一个哨兵结点 head_pre ,方便后续处理 head_pre: Optional[ListN...
res = sol.mergeTwoLists(inpt1, inpt2) print(lsListNode(res)) 开发者ID:zhlinh,项目名称:leetcode,代码行数:32,代码来源:test.py 注:本文中的solution.Solution.mergeTwoLists方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者...
ret.next=self.mergeTwoLists(l1.next,l2)else:ret=l2 ret.next=self.mergeTwoLists(l2.next,l1)returnret 结果:AC 四、学习与记录 这个其实算是一个归并排序: 归并排序(MERGE-SORT)是建立在归并操作上的一种有效的排序算法,该算法是采用分治法(Divide and Conquer)的一个非常典型的应用。将已有序的子序列...
*/classSolution{publicListNodemergeTwoLists(ListNode l1,ListNode l2){ListNode head,tail;if(l1==null&&l2==null)returnl1;if(l1==null&&l2!=null)returnl2;if(l1!=null&&l2==null)returnl1;if(l1.val<=l2.val){head=newListNode(l1.val);head.next=null;l1=l1.next;}else{head=newListNode(l2....
在下文中一共展示了LeetSolution.mergeTwoLists方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。 示例1: test_mergeTwoLists ▲点赞 7▼ # 需要导入模块: from LeetSolution import LeetSolution [as 别名]# 或者: from...
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. C++代码如下: #include<iostream>#include<new>usingnamespacestd;//Definition for singly-linked list.structListNode ...
I have two QB Desktop Pro Plus company files - one is from prior to forming my LLC and goes from January - May, then from June through December I have another for after my LLC was formed. We are going to file taxes with an S Corp election and back date the change to ...