82. Remove Duplicates from Sorted List II https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/ 下面代码是自写hashmap版,练一下hashmap,用一般的map<int,int>红黑树map也能过. /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *
本文是在一个国外介绍JS的网站上转载过来的,作者很逗,先是举例JS让人XX的例子,再动手实践发现JS隐藏的黑知识.为什么 /[A-z]/.test("\\"); 是 true ,你看懂了么? 原文. When I use regular expressions and I want to validate a range of letters, I can do it using a-z or A-Z. Even when I use A-z it works fine too. Th
begindeclare i int; #定义i变量declare j int; #定义j变量declare k int; #定义k变量set i=1;set j=1;set k=1;while(i<3) do #对学号的循环 while(j<6) do #对课程号的循环 while(k<3) do #对课程号的循环 insert into aa values (1); set k=k+1; end while;set k=1; set j=j
Spreadsheet In 1979, Dan Bricklin and Bob Frankston wrote VisiCalc, the first spreadsheet application. It became a huge success and, at that time, was the killer application for the Apple II computers. Today, spreadsheets are found on most desktop co
一.springboot启动原理及相关流程概览 springboot是基于spring的新型的轻量级框架,最厉害的地方当属自动配置.那我们就可以根据启动流程和相关原理来看看,如何实现传奇的自动配置 二.springboot的启动类入口 用过springboot的技术人员很显而易见的两者之间的差别就是视觉上很直观的:springboot有自己独立的启动类(独立程序) @SpringBootApplication public class Application { public static vo