algorithm

An excellent vscode extension for leetcode.

Document | 中文文档

Quick Start

Support

• javascript
• typescript
• python3
• golang
• java
• c++
• shell
• sql

will support other language soon

Main Features

• write testcase in the file and run test in local, support link list and tree

• debug the testcase

• memo

• multi-solution and history

• support import module, bundle code and copy the build code.(only support js/ts)

• contain contest (Do not submit directly when you attending weekly contest, copy the code and submit in browser instead.)

Other Features

• search question
• contain daily challenge
• support login in https://leetcode.com/ and https://leetcode.cn/

Requirements

• javascript/typescript

  • Nodejs 12+

    The test and debug will use node to execute. Make sure that node is in your PATH environment variable.If you're using nvm, you may need to set the algorithm.nodePath in the VS Code settings.

• python3

  • Make sure that python3 is in your PATH environment variable.
  • install the official Python extension(https://code.visualstudio.com/docs/python/python-tutorial)

• golang

  • Make sure that go is in your PATH environment variable.
  • install the official golang extension

• java

  • Make sure that java,javac is in your PATH environment variable.Or set javaPath and javacPath
  • install the official java extension (https://code.visualstudio.com/docs/java/java-tutorial)

    ensure the extension Debugger for Java>=v0.33.1 or the extension Java Extension Pack>=v0.14.0

• c++

  • Install GCC C++ compiler (g++).And make sure that g++ is in your PATH environment variable.
  • Install the C++ extension for VS Code. more detail in the website (https://code.visualstudio.com/docs/cpp/config-linux)

Pick a question

Click the question in the algorithm view

Switch code lang

press ctrl+shift+p and run the Command algorithm:switch default language

Switch database

press ctrl+shift+p and run the Command algorithm:switch default database

shortcut buttons

Just click the shortcut button in the view toolbar to

• refresh question
• search question
• login in
• switch endpoint
• collapse all

Switch endpoint

current support:

• leetcode.com
• leetcode.cn

Note: The accounts of different endpoints are not shared.

Login in

The way to login in referred to the official extension vscode-leetcode.

• leetcode.com support github and cookie login.
• leetcode.cn support account,github and cookie login.

Test in the file

The code contains default testcase from question preview.

By clicking the test codelens hover in the vscode to run the test in local.

You can add customized testcase in the code like // @test(param)=result.

Debug

You only need to set breakpoints on the testcase line and set breakpoints for the code.

🎉 Then enjoy debugging!

Note:If you are debugging java,ensure the extension Debugger for Java>=v0.33.1 or the extension Java Extension Pack>=v0.14.0. If you build error when debugging,press ctrl+shift+p and run the Command Java:Clean Java Language Server Workspace.

Note:If you are debugging c++ in m1, you need install the vscode extension named CodeLLDB

Submit

Click the submit hover to submit your code. You can use build to view the final submitted code.

Memo

You can create different folders and add questions to them.

Multi-solution and History

1. Click the history codelens, you will see the answers and submit history.
2. Add the comment @desc $(method name) in the code, it will generate description or comment when submit or use new leetcode answer command.
3. Right click the mouse,you will see the new leetcode answer command.This command will save your old answer and init a new answer.You can scan it in 4.
4. the old answers
5. submit solution save in local
6. submit solution save in leetcode

Weekly Contest

When you participate in Weekly Contest, you may choose c++,java,python. Because they have the built-in library like STL that contains priority queue,order set etc.

Now you have another choice.

Attention!

Do not submit directly when you attend weekly contest,click build and then click copy to copy code , finally paste the code in browser and submit.

build code & copy code

This is useful in the weekly contest.

• click the build codelens hover.

• focus the code view then click the copy icon.

The code import module algm which contains many useful function and data structure, such as priority queue,Segment tree, union–find ,skip list. 🚀 Thanks to treeshake and rollup, the bundle code is very clean.

Setting

press ctrl+, or open file->Preferences->Settings, you will see User and Workspace setting. Workspace setting will override User setting. open Extensions->algorithm,you will see the settings:

Setting Name	Description	Default Value
Auto Import Str	The string will be inserted at the beginning of the coding file	""
Base Dir	The path of the folder to save the problem files	$HOME/.alg
Code Lang	default code language	JavaScript
Lang	Specify the active endpoint.support leetcode.com and leetcode.cn	leetcode.com
Node Path	The absolute pathname of the executable that started the Node.js process. eg: /usr/local/bin/node	node
javaPath	The absolute pathname of java	java
javacPath	The absolute pathname of javac	javac
Database	default sql language	MySQL
displayLock	if true, will display the locked questions.	false

Thanks

Thanks to the official extension vscode-leetcode, the algorithm extension has reference some design and the login method.