突然发现了一个leetcode相关的编辑器插件，链接如下：
https://marketplace.visualstudio.com/items?itemName=shengchen.vscode-leetcode
直接安装插件
安装好之后，通过leetcode账号和密码登录
立马就能列出自己完成的和未完成的题目
可以直接本地编码提交
[……]
标签：LeetCode
LeetCode 32：Longest Valid Parentheses
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring.
Example 1:
Input: "(()" Output: 2 Explanation: The longest valid pa[......]
LeetCode 31：Next Permutation
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.
If such arrangement is not possible, it must rearrange it as the lowest possible or[……]
LeetCode 25：Reverse Nodes in k-Group
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.
k is a positive integer and is less than or equal to the length of the linked list. If the number of n[……]
LeetCode 24：Swap Nodes in Pairs
Given a linked list, swap every two adjacent nodes and return its head.
Example:
Given1->2->3->4, you should return the list as2->1->4->3.
Note:
- Your algorithm should use only con[……]
LeetCode 23：Merge k Sorted Lists
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.
Example:
Input: [ 1->4->5, 1->3->4, 2->6 ] Output: 1->1->2->3->4->[......]