Algorithms

GitHub repository ↗ synced 2026/8/9

Awesome Algorithms

A curated list of awesome places to learn and/or practice algorithms.
Inspired by awesome-awesomeness and all the other awesome Awesome libraries.

If you want to contribute, please read the contribution guidelines.

- [Beginner-Friendly](#beginner-friendly)
- [Programming Contest](#programming-contest)
- [Theory & Fundamentals](#theory--fundamentals)
- [Production System](#production-system)
- [Database](#database)
- [Special Topic](#special-topic)
- [Cheat Sheet](#cheat-sheet)
- [Related Awesome List](#related-awesome-list)

Beginner-Friendly

YouTube Playlist

Khan Academy Algorithms - Algorithm course ministered by Tomas Cormen and Devin Balkcom.
FreeCodeCamp. Algorithms and Data Structures: 5 hours, 49 hours - Complete beginner friendly Algorithms and Data Structures Tutorial with mindblowing animation.

Book

Real World Algorithms: A Beginner's Guide - An introduction to algorithms for readers with no background in advanced mathematics or computer science.
Levitin. Introduction to Algorithms - A very accessible illustration of algorithms in the forms of puzzles. No programming experience is required!

Interactive Learning & Visualization

VisuAlgo - Visualising data structures and algorithms through animation.
See Algorithms – Visualizes algorithms and lets users create and share custom graphs and binary trees.
Recursive - Visualizes code execution step-by-step with a call tree, variable tracking, and line highlighting. Supports Python and JavaScript/TypeScript.

Programming Contest

Website

CP-Algorithms - Algorithms and data structures are especially popular in the field of competitive programming.

Book

Steven Halim. Competitive Programming book

Competition Website

HackerEarth - Accessible tutorials for beginners.
Code Chef - Accessible problems for beginners.
Codeforces - Challenging problems.
TopCoder - Sponsored by tech companies.
Leet Code - Interviews problems.
UVA - Archives previous ACM-ICPC Regionals and World Finals.
ProjectEuler - Math oriented problems.

Blog

An awesome list for competitive programming! - Awesome blog for all the resources and list of books and algorithms.
Algorithms Weekly - A good blog by Petr Mitrichev, mainly in Java.
Algorithm Tutorials by Tanuj Khattar - Excellent blog by Tanuj Khattar. Covers tutorials on some interesting data structures along with example problems to solve.

Theory & Fundamentals

Book

Introduction to Algorithms - Standard classic for anyone.
The Art of Computer Programming - Knuth's classic.
The Algorithm Design Manual - Easy to read and full of real-world examples.

Online Course

MIT - 6-006 - Well explained algorithms.
MIT - 6-046j - Similar to the previous one, but with different algorithms.
MIT - 6-00sc - An easy and well-explained introduction to algorithms.

YouTube Playlist

Tim Roughgarden. Algorithms Illuminated - Tim Roughgarden, a pioneer of computer science, offers a companion to his book, with lecture videos and slides.

Production System

Performance Engineering of Software Systems. MIT OCW - A hands-on, project-based introduction to building scalable and high-performance software systems. Topics include performance analysis, algorithmic techniques for high performance, instruction-level optimizations, and caching optimizations.
Cloud and Distributed Computing: Algorithms and Systems by Misra & Patel - It teaches the internals of cloud computing and how concepts of distributed systems work inside clouds.

Database

PostgreSQL Query Optimization: The Ultimate Guide to Building Efficient Queries - It introduces different classes of queries and optimization techniques suitable to each, such as the use of indexes and specific join algorithms.

Special Topic

Fabulous Adventures in Data Structures and Algorithms - It teaches lesser-known algorithmic approaches like immutable data structures—stacks, queues, deques, and unusual constructions like Hughes lists.

Cheat Sheet

Tech Interview Cheat Sheet
Princeton DS Cheat Sheet
CLRS in short
Rice university DS course in short
Algo Deck - An open-source collection of +200 algorithmic cards.