leetcode Documentation

LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解

36,457 stars Java Java 1 file · ~125,212 tokens #algorithms#cpp#csharp#golang#java#javascript#leetcode#python3
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1. Project Overview & Quickstart (doocs/leetcode)

介绍

本项目包含 LeetCode、《剑指 Offer（第 2 版）》、《剑指 Offer（专项突击版）》、《程序员面试金典（第 6 版）》等题目的相关题解。所有题解均由多种编程语言实现，包括但不限于：Java、Python、C++、Go、TypeScript、Rust。我们正在全力更新，欢迎 Star 🌟 关注本项目，获取项目最新动态。

English Version

赞助商

感谢 APINEBULA 赞助本项目！APINEBULA 是银河录像局旗下的企业级 AI 聚合平台，背靠大平台资源，面向开发者、团队与企业用户提供稳定、高性价比的大模型 API 接入服务。平台聚合 Claude、GPT、Gemini 等主流满血模型，一个接口，接入全球顶尖 AI 大模型，各大模型价格低至 1 折起，支持企业级高并发、正式合同、对公打款与开票服务，适合 AI 编程、Agent 开发、业务系统集成等多种场景！使用此链接注册并在充值时填写 "leetcode" 优惠码可享九折优惠！

想出现在这里？如有赞助意向，欢迎添加微信 YLB0109（备注「赞助」）联系洽谈。

站点

https://leetcode.doocs.org

算法全解

专项突破

算法提升专题

1. 基础算法

2. 数据结构

3. 搜索

4. 动态规划（DP）

5. 高级数据结构

6. 图论

加入我们

刷编程题的最大好处就是可以锻炼解决问题的思维能力。相信我，「如何去思考」​ 本身也是一项需要不断学习和练习的技能。非常感谢前微软工程师、现蚂蚁金服技术专家 @kfstorm 贡献了本项目的所有 C# 题解。

如果你对本项目感兴趣，并且希望加入我们刷题小分队，欢迎随时提交 PR。请参考如下步骤：

  1. 将本项目 fork 到你的个人 GitHub 帐户，然后 clone 到你的本地机器；
  2. 进入 leetcode 目录，切换到一个新的分支；
  3. 对项目做出一些变更，然后使用 git add、commit、push 等命令将你的本地变更提交到你的远程 GitHub 仓库；
  4. 将你的变更以 PR 的形式提交过来，项目的维护人员会在第一时间对你的变更进行 review！
  5. 你也可以参考帮助文档 https://help.github.com/cn 了解更多细节。

Stars 趋势

贡献者

感谢以下所有朋友对本项目的贡献！

版权

本项目著作权归 GitHub 开源社区 Doocs 所有，商业转载请联系 @yanglbme 获得授权，非商业转载请注明出处。

联系我们 & 支持项目

欢迎各位小伙伴们添加 @yanglbme 的个人微信（微信号：YLB0109），备注 「leetcode」。后续我们会创建算法、技术相关的交流群，大家一起交流学习，分享经验，共同进步。

如果你觉得这个项目对你有帮助，也欢迎通过微信扫码赞赏我们 ☕️ ～

许可证

知识共享 版权归属-相同方式共享 4.0 国际 公共许可证

2. Official Technical Reference & Guides (doocs/doocs.github.io)

File: README.md

Introduction






Hello, everyone! Welcome to the Doocs Open Source community. We are currently focusing on sharing various development-related knowledge.

See the 中文文档 for Chinese README.

Sites

https://doocs.org

Owner

Yang Libin, focus on the inner workings of web applications to build out the "server-side" of web applications.

Projects

Doocs now has the following hot projects:

# Project Description Popularity
1 advanced-java Core interview questions & answers for experienced Java(Backend) developers.
2 leetcode LeetCode solutions in any programming language.
3 source-code-hunter Source code analysis of frameworks and components.
4 jvm A summary of the underlying principles of Java Virtual Machine.
5 coding-interview A collection of interview questions for programmers. The main contents include ‘Coding Interviews: Questions, Analysis and Solutions’, ‘Beauty of Programming’, etc.
6 md An online wechat markdown editor.
7 technical-books Awesome programming books list.

How to join

If you want to go fast, go alone. If you want to go far, go together.

I believe many of you have a deep understanding that participating in open source projects is very helpful for personal growth. If you love open source or you are curious about it, join Doocs, work with us, maintain our projects and grow together. You can join us in the following two ways:

By default, your Doocs membership will be hidden from view aftering joining us. If you'd like to display the organization icon in your profile, you can switch from "Private" to "Public" here: https://github.com/orgs/doocs/people. We also recommend setting it to Public.

Once a member of the community, the member can fork any project of interest and make modifications, and then submit a pull request for review. If the submission is deemed to be in compliance with the project's standards, the member may be added as a collaborator to the project.

It is worth noting that initially, new members may not have direct write access to the projects, as the maintainers need to assess the quality of the submissions. Therefore, it is recommended that new members make submissions regularly to become familiar with the GitHub workflow and to improve their submissions over time.

You can refer to this article if you are a new open-source contributor.

Overall, the Doocs community seems to be a valuable resource for programmers interested in learning about internet backend development and open-source development. The community offers various resources and projects that can help programmers improve their skills and contribute to the open-source community.

Doocs is looking forward to your joining.

Contributors

This organization exists thanks to all the people who contribute.

Contact

File: docs/en/index.md

https://vitepress.dev/reference/default-theme-home-page

layout: home

hero:
name: "Doocs"
text: "Developer-friendly Open-source Community"
actions:
- theme: alt
text: GitHub
link: https://github.com/doocs
- theme: brand
text: Enter
link: /en/intro

features:

File: docs/en/intro.md

Introduction






Hello, everyone! Welcome to the Doocs Open Source community. We are currently focusing on sharing various development-related knowledge.

Sites

https://doocs.org

Owner

Yang Libin, focus on the inner workings of web applications to build out the "server-side" of web applications.

Projects

Doocs now has the following hot projects:

# Project Description Popularity
1 advanced-java Core interview questions & answers for experienced Java(Backend) developers.
2 leetcode LeetCode solutions in any programming language.
3 source-code-hunter Source code analysis of frameworks and components.
4 jvm A summary of the underlying principles of Java Virtual Machine.
5 coding-interview A collection of interview questions for programmers. The main contents include ‘Coding Interviews: Questions, Analysis and Solutions’, ‘Beauty of Programming’, etc.
6 md An online wechat markdown editor.
7 technical-books Awesome programming books list.

How to join

If you want to go fast, go alone. If you want to go far, go together.

I believe many of you have a deep understanding that participating in open source projects is very helpful for personal growth. If you love open source or you are curious about it, join Doocs, work with us, maintain our projects and grow together. You can join us in the following two ways:

  • Comment on the relevant issue on GitHub to express interest in joining the community.
  • Send an email to [email protected] with the GitHub ID to request to join the community.

By default, your Doocs membership will be hidden from view aftering joining us. If you'd like to display the organization icon in your profile, you can switch from "Private" to "Public" here: https://github.com/orgs/doocs/people. We also recommend setting it to Public.

Once a member of the community, the member can fork any project of interest and make modifications, and then submit a pull request for review. If the submission is deemed to be in compliance with the project's standards, the member may be added as a collaborator to the project.

It is worth noting that initially, new members may not have direct write access to the projects, as the maintainers need to assess the quality of the submissions. Therefore, it is recommended that new members make submissions regularly to become familiar with the GitHub workflow and to improve their submissions over time.

You can refer to this article if you are a new open-source contributor.

Overall, the Doocs community seems to be a valuable resource for programmers interested in learning about internet backend development and open-source development. The community offers various resources and projects that can help programmers improve their skills and contribute to the open-source community.

Doocs is looking forward to your joining.

Contributors

This organization exists thanks to all the people who contribute.

Contact

File: docs/index.md

https://vitepress.dev/reference/default-theme-home-page

layout: home

hero:
name: "Doocs"
text: "开发者友好的开源社区"
actions:
- theme: alt
text: GitHub
link: https://github.com/doocs
- theme: brand
text: 进入
link: /intro

features:

File: docs/intro.md

介绍






你好呀，欢迎来到 Doocs 开源社区。我们是一个非常友好的技术社区，目前专注于分享技术领域相关知识。

站点

https://doocs.org

发起人

杨立滨，专注于互联网后端领域。

项目

目前 Doocs 有以下多个热门项目，欢迎 Star ⭐ 关注~

# 项目 描述 热度
1 advanced-java 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识。
2 leetcode 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解。
3 source-code-hunter 互联网常用组件框架源码分析。
4 jvm Java 虚拟机底层原理知识总结。
5 coding-interview 代码面试题集，包括《剑指 Offer》、《编程之美》等。
6 md 一款高度简洁的微信 Markdown 编辑器。
7 technical-books 值得一看的技术书籍列表。

如何加入

要走得快，就一个人走；要走得远，就一起走。

参与开源项目，对于个人的成长是有很大帮助的，相信很多小伙伴都有体会。

如果你热爱开源，或者抱着一颗好奇的心，不妨加入 Doocs 组织，和我们一起维护项目，共同成长。可以通过以下两种方式加入：

默认情况下，在你加入我们之后，你作为 GitHub Doocs 组织成员的信息是处于隐藏状态的。如果你希望在你的个人 GitHub 资料页上展示 Doocs 组织，你可以在此链接 https://github.com/orgs/doocs/people 处将你的信息从 private “私有”改为 public “公开”。当然，我们推荐设置为公开。

注意，刚开始加入，你暂时不会有项目的直接 write 权限，因为我们不确定你的提交是否符合项目规范。

你可以 fork 任何一个感兴趣的项目到你的个人 GitHub 帐户下，对项目作出修改后，提交你的 PR。Doocs 维护者会对你的提交内容进行 review。或许你最初的提交并不规范，这也没关系，改进之后，慢慢的，整个规范性就有了。当你的提交一直很符合项目的规范性，Doocs 维护者会将你添加到对应项目的 Collaborators 列表中，共同维护好项目。

如果你不熟悉 GitHub 操作流程，可以参考这篇文章。

Doocs 期待你的加入。

贡献者列表

感谢以下所有为此开源组织做出贡献的开发者朋友们。

联系我

GitHub 技术社区 Doocs 旗下唯一公众号「Doocs」​，欢迎扫码关注，专注分享技术领域相关知识及行业最新资讯。当然，也可以加我个人微信（备注：GitHub），拉你进技术交流群。

File: README_CN.md

介绍






你好呀，欢迎来到 Doocs 开源社区。我们是一个非常友好的技术社区，目前专注于分享技术领域相关知识。

站点

https://doocs.org

发起人

杨立滨，专注于互联网后端领域。

项目

目前 Doocs 有以下多个热门项目，欢迎 Star ⭐ 关注~

# 项目 描述 热度
1 advanced-java 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识。
2 leetcode 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解。
3 source-code-hunter 互联网常用组件框架源码分析。
4 jvm Java 虚拟机底层原理知识总结。
5 coding-interview 代码面试题集，包括《剑指 Offer》、《编程之美》等。
6 md 一款高度简洁的微信 Markdown 编辑器。
7 technical-books 值得一看的技术书籍列表。

如何加入

要走得快，就一个人走；要走得远，就一起走。

参与开源项目，对于个人的成长是有很大帮助的，相信很多小伙伴都有体会。

如果你热爱开源，或者抱着一颗好奇的心，不妨加入 Doocs 组织，和我们一起维护项目，共同成长。可以通过以下两种方式加入：

默认情况下，在你加入我们之后，你作为 GitHub Doocs 组织成员的信息是处于隐藏状态的。如果你希望在你的个人 GitHub 资料页上展示 Doocs 组织，你可以在此链接 https://github.com/orgs/doocs/people 处将你的信息从 private “私有”改为 public “公开”。当然，我们推荐设置为公开。

注意，刚开始加入，你暂时不会有项目的直接 write 权限，因为我们不确定你的提交是否符合项目规范。

你可以 fork 任何一个感兴趣的项目到你的个人 GitHub 帐户下，对项目作出修改后，提交你的 PR。Doocs 维护者会对你的提交内容进行 review。或许你最初的提交并不规范，这也没关系，改进之后，慢慢的，整个规范性就有了。当你的提交一直很符合项目的规范性，Doocs 维护者会将你添加到对应项目的 Collaborators 列表中，共同维护好项目。

如果你不熟悉 GitHub 操作流程，可以参考这篇文章。

Doocs 期待你的加入。

贡献者列表

感谢以下所有为此开源组织做出贡献的开发者朋友们。

联系我

GitHub 技术社区 Doocs 旗下唯一公众号「Doocs」​，欢迎扫码关注，专注分享技术领域相关知识及行业最新资讯。当然，也可以加我个人微信（备注：GitHub），拉你进技术交流群。

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