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21. Merge Two Sorted Lists[easy] 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. 解法一: /** * Definition for singly-linked list. * struct ListNode { * int val…

Leetcode 21. Merge Two Sorted Lists（easy）

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. 递归实现: /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(i…

# 蜗牛慢慢爬 LeetCode 21. Merge Two Sorted Lists [Difficulty: Easy]

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. 翻译 合并两个有序的链表 Hints Related Topics: LinkedList 参考 归并排序-维基百科,可以递归也可以迭代,基本的链表操作 代码 Java /** * Definition for…

两个升序链表的合并 Merge Two Sorted Lists 【 leetcode】

class Solution {public:   ListNode* mergeTwoLists(ListNode* l1, ListNode* l2) {   ListNode *p; ListNode *p1=p;   while(l1!=NULL && l2!=NULL){      if((l1->val)<(l2->val)){           p->next=l1;           p=p->next;           l1=l1-&…

LeetCode：21. Merge Two Sorted Lists（Easy）

1. 原题链接 https://leetcode.com/problems/merge-two-sorted-lists/description/ 2. 题目要求 给出两个已经从小到大排序的链表ls1.ls2,进行合并,合并后仍有序,返回合并后的链表 3. 解题思路 创建一个表头指针headPointer和一个定位指针locatePointer,headPointer用来保存头结点. 同时对ls1和ls2进行遍历,当ls1的值小于ls2的值时,locatePointer指向ls1,否则指向ls2…

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88. Merge Sorted Array[easy] Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note:You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2.…

刷题21. Merge Two Sorted Lists

一.题目说明 这个题目是21. Merge Two Sorted Lists,归并2个已排序的列表.难度是Easy! 二.我的解答 既然是简单的题目,应该一次搞定.确实1次就搞定了,但是性能太差: Runtime: 20 ms, faster than 8.74% of C++ online submissions for Merge Two Sorted Lists. Memory Usage: 9.4 MB, less than 5.74% of C++ online submissions…

[Leetcode][Python]21: Merge Two Sorted Lists

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 21: Merge Two Sorted Listshttps://oj.leetcode.com/problems/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…

21. Merge Two Sorted Lists(合并2个有序链表)

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 需要排序!!! [2,4][1] 输出1 2 4 而不是2 4 1  递归版!! class Solution { public ListNode mergeTwo…

160. Intersection of Two Linked Lists【easy】

160. Intersection of Two Linked Lists[easy] Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A: a1 → a2 ↘ c1 → c2 → c3 ↗ B: b1 → b2 → b3 begin to intersect at n…