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LeetCodeCrawler

Overview

A tool for crawling the description and accepted submitted code of problems on the LeetCode and LeetCode-Cn website. The tool supports to generate README.md and Topics.md files to beautify your README of LeetCode repository.

This project is inspired by leetcode-spider, which is written in JavaScript. It is no longer maintained, and I don't know much about JavaScript for a while, thus I implement crawling with Java.

Usage

For the LeetCode website, download LeetCodeCrawler.jar to your local.

For the LeetCode-Cn website, download Cn-LeetCodeCrawler to your local.

Create the config.json file as shown below(you can modify the config.json in the repo directly), the config.json file should be placed in the same directory as LeetCodeCrawler.jar or Cn-LeetCodeCrawler.jar:

{
    "username": "leetcode@leetcode",
    "password": "leetcode",
    "language": ["cpp", "java"],
    "outputDir": "."
}
  • username and password correspond to the account and password on the website.
  • language corresponds to the programming language you use in the website. You can select multiple fields, the optional fields are shown as follow(Please fill in the corresponding fields strictly as follow):
    • cpp
    • java
    • c
    • csharp
    • javascript
    • python
    • python3
    • ruby
    • swift
    • golang
    • scala
    • kotlin
  • The outputDir field indicates the directory where you want to store the resources crawled by the tool. The default is ., which means the current directory.

run command java -jar LeetCodeCrawler.jar or java -jar Cn-LeetCodeCrawler.jar

Result

you can see the result for crawling in my repository：LeetCode.