hello-algo

Animated explanations and one-click runnable data structure and algorithm tutorials

Simplified Chinese ｜ Traditional Chinese ｜ English

About This Book

This project aims to create a free, open-source, beginner-friendly introduction to data structures and algorithms.

• The entire book uses animated illustrations, with content that is clear and easy to understand and a gentle learning curve, guiding beginners to explore the knowledge map of data structures and algorithms.
• Source code can be run with one click, helping readers improve programming skills through practice and understand how algorithms work and how data structures are implemented under the hood.
• Readers are encouraged to help each other learn. Everyone is welcome to ask questions and share insights in the comments section, progressing together through discussion and exchange.

If this book has helped you, please click Star :star: in the upper right corner of the page to support us. Thank you!

Recommendations

"An easy-to-understand introductory book on data structures and algorithms that guides readers to learn by both thinking and doing. Highly recommended for algorithm beginners."

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—— Junhui Deng, Professor, Department of Computer Science, Tsinghua University

"If I had Hello Algo when I was learning data structures and algorithms, it would have been ten times easier!"

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—— Mu Li, Senior Principal Scientist at Amazon

Contribution

This open-source book is still being continuously updated. You are welcome to participate in this project and help provide better learning content for readers.

• Content Corrections: Please help to correct or point out in the comments section any grammatical errors, missing content, ambiguous wording, invalid links, code bugs, etc.
• Code Translation: We look forward to your contributions in various programming languages. Currently, 12 languages are supported, including Python, Java, C++, Go, JavaScript, and more.
• Chinese to English Translation: We invite you to join our translation group, whose members mainly come from computer-related majors, English majors, and native English speakers.

We welcome your valuable opinions and suggestions. If you have any questions, please submit an Issue or contact via WeChat at krahets-jyd.

Thanks to every contributor to this open-source book. Their selfless dedication has made this book better. They are:

License

The texts, code, images, photos, and videos in this repository are licensed under CC BY-NC-SA 4.0.

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