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160 intersecting linked list Given two linked lists, judge whether they intersect at a point, and find the intersection node. The input is two linked lists and the output is one node. If there are no intersecting nodes, an empty node is returned. Input: intersectVal = 8, listA = [4,1,8,4,5], listB = [5,0,1,8,4,5], skipA = 2, skipB = 3 Out ...

The commonly used Security frameworks under ava mainly include Spring Security and shiro, which can provide very powerful functions, but the learning cost is high. Under microservice, authentication will be more or less invasive to the service. In order to reduce dependence, reduce intrusion and make the authentication function transparent to t ...

ping command usage and judgment of target host operating system 1. ping command When sending a packet to an IP address, the other party will return a packet of the same size. According to the returned packet, the existence of the target host can be determined, and the operating system of the target host can also be preliminarily judged. It c ...

Files and directories cd command is used to switch the current directory. Its parameter is the path of the directory to be switched to, which can be absolute path or relative path. cd /home get into '/ home' catalogue cd .. Return to the previous directory cd ../.. Return to the upper two directories cd ...

JavaScript prototypes, inheritance, and classes prototype Prototype In JavaScript, an object has a special hidden attribute [[Prototype]], which is either null or a reference to another object. When we read a missing attribute from the object, JavaScript will automatically get the attribute from the Prototype let animal = { eats: true ...

Cell type annotation is a very important link in single cell research, which can be roughly divided into artificial annotation and software annotation. (1) Manual annotation needs the help of literature retrieval marker or combined with common annotation database-cellMarker(http://biocc.hrbmu.edu.cn/CellMarker/)，PanglaoDB(https://panglaodb.se/ ...

Basic part of network: The IP layer does not provide reliable network forwarding, that is, the network system is unreliable. The reliability is controlled by the host transport layer connected to the network TCP/IP system: Application Layer (SMTP, POP3) Transport Layer (TCP, UDP) / / Transmission control protocol, User Datagram protocol IP in ...

JavaScript implements Queue structure (Queue) 1, Queue introduction Queue is a restricted linear table, which is characterized by first in first out (FIFO). The limitation is that it only allows deletion at the front of the table;Insert at the back end of the table; It is equivalent to queuing up to buy tickets. Those who come first buy t ...

Swagger is a very popular API document generation tool. I believe many guys are using it! If you use it too much, you may feel that its interface is ugly and its function is weak. Today, I recommend a tool Torna, which can be used with swagger to build a beautiful and powerful API document website. I hope it will be helpful to you!Introduction ...

Git project management 1. Git download and common commands: 1.1 Click to download: Git official download address 1.2 basic configuration 1.2.1 open Git Bash 1.2.2 setting user information git config --global user.name "Arther" git config --global user.email "li.xiangcheng@qq.com" 1.2.3 viewing configuration user information git config --global ...