## LeetCode 21 合并链表 ## 引用官方代码,定义结点类 class ListNode: def __init__(self, x): self.val = x self.next = None 将数组转换为链表,也可以理解为链表的创建(官网不给出): ## 将给出的数组,转换为链表 def linkedlist(list): head = ListNode(list[0]) ## 列表的第一个元素。这里...
l1.next = mergeTwoLists2(l1.next, l2);returnl1; }else{ l2.next = mergeTwoLists2(l1, l2.next);returnl2; } } 05 小结 此题虽然不难,但是需要先将题目意思读懂,并且知道链表是怎么存数据的,这样才能更好解题。为了更好理解,下面贴上全部代码。 packageleetcode;importjava.util.ArrayList;importjava...
next = list1; } else { // 如果 list1 没有结点,表明 list2 已遍历完成, // 则将 list2 直接放在 tail 后面 tail.next = list2; } // 返回合并后的链表的头结点 head_pre.next } } 题目链接: Merge Two Sorted Lists : leetcode.com/problems/m 合并两个有序链表: leetcode-cn.com/...
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(ListNode* l1, ListNode* l2) { ListNode* preHead = newListNode(-1);...
leetcode -- Merge Two Sorted Lists -- 重点 https://leetcode.com/problems/merge-two-sorted-lists/ 我的思路就是找到第一个j > i的,然后用pre_j串起来。然后相应地对i再做一次。这种思路不太好。 note在指针前进的时候,判断越界的语句要放在if 或者while的前半部分。
https://leetcode.com/problems/merge-two-sorted-lists/ 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. 思路: easy 。 算法: AI检测代码解析 ...
# Definition for singly-linked list. class ListNode: def __init__(self, x): self.val = x self.next = None class Solution: def mergeTwoLists(self, l1: ListNode, l2: ListNode) -> ListNode: head = ListNode(0) first = head while l1 and l2: if l1.val > l2.val: head.next = ...
输入:1->2->4,1->3->4输出:1->1->2->3->4->4 二、代码实现 # Definition for singly-linked list.# class ListNode(object):# def __init__(self, x):# self.val = x# self.next = NoneclassSolution(object):defmergeTwoLists(self,l1,l2):""" ...
617. Merge Two Binary Trees 2019-12-12 22:38 − Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n... lychnis 0 179 LeetCode 88 Merge Sorted Array 2019-12-06 14:48 − ...
博客分类: LeetCode随记面试切题 题目描述: Given two sorted integer arrays A and B, merge B into A as one sorted array. Note:You may assume that A has enough space to hold additional elements from B. The number of elements initialized in A and B are m and n respectively. 新建一个...