Introduction

Complete solutions to LeetCode, LCOF and LCCI problems, updated daily.

中文文档

Sites

• Netlify: https://lc.netlify.app
• Gitee Pages: https://doocs.gitee.io/leetcode
• GitHub Pages: https://doocs.github.io/leetcode

Solutions

1. LeetCode
2. LCOF: Coding Interviews, 2nd Edition
3. LCCI: Cracking the Coding Interview, 6th Edition

Basic Algorithms

1. Sorting

High Frequency Interview Questions

Arrays

1. Rotate Array

Linked List

1. Delete Node in a Linked List
2. Kth Node From End of List
3. Reverse Linked List
4. Linked List Cycle
5. Linked List Cycle II

Binary Tree

1. Lowest Common Ancestor of a Binary Tree
2. Lowest Common Ancestor of a Binary Search Tree

Math

1. Set Mismatch

Stack & Queue

Dynamic Programming

Misc

Maintainer

Yang Libin: Creator of @Doocs technical community; member of @TheAlgorithms organization.

Contributions

I'm looking for long-term contributors/partners to this repo! Send me PRs if you're interested! See the following:

1. Fork this repository to your own GitHub account and then clone it to your local machine.
2. Make some changes to your leetcode repository, then add, commit and push the changes to your remote GitHub repository.
3. Submit a pull request with your changes!
4. See CONTRIBUTING or GitHub Help for more details.

You can also contribute to doocs/leetcode using Gitpod.io, a free online dev environment with a single click.

Contributors

This project exists thanks to all the people who contribute.

Backers & Sponsors

Thank you to all our backers and sponsors!

You help the developer community practice for interviews, and there is nothing better we could ask for. -1. Alan Yessenbayev

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.