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Awesome Algorithms

A curated list of awesome places to learn and/or practice algorithms.

Here you can see meta information about this topic like the time we last updated this page, the original creator of the awesome list and a link to the original GitHub repository.

Last Update: None

Thank you tayllan & contributors
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Websites

Interactive visualisations for learning how graph traversal algorithms work

Dozens of animated algorithms (with code), and you can also create your own.

A dense article on Algorithms Visualization.

Big-O complexities of common algorithms used in Computer Science.

Practice problems recommender (includes Codeforces, Codechef and Spoj).

Algorithms and data structures especially popular in field of competitive programming.

Visualize the behavior of Data Structures and play with its operations.

Lots and lots of well explained and implemented algorithms.

A visual representation on how algorithms such as A*, IDA*, Breadth-First-Search, Best-First-Search and others describe a path between two points A and B.

A programming chrestomathy site which aims to present implementations of many algorithms and data structures in different programming languages.

Nice and simple animations of sorting algorithms. With short codes and discussions.

Some algorithms nicely explained.

The Sound of Sorting - "Audibilization" and Visualization of Sorting Algorithms

Visualising data structures and algorithms through animation.

Online Courses

The primary topics are: asymptotic ("Big-oh") notation, sorting and searching, divide and conquer, and randomized algorithms.

The primary topics are: data structures, graph primitives, and their applications.

The primary topics are: shortest paths, NP-completeness and what it means for the algorithm designer, and strategies for coping with computationally intractable problems.

This course covers the essential information that every serious programmer needs to know about algorithms and data structures.Part I covers elementary data structures, sorting, and searching algorithms.

Part II focuses on graph- and string-processing algorithms.

Algorithm course ministred by Tomas Cormen and Devin Balkcom.

Similar to the previous one, but with different algorithms.

An easy and well explained introduction to algorithms.

Beginner's algorithms course with fun illustrations, based on the book Grokking Algorithms

Lots of well explained vidoes on various computer science subjects.~~ Account terminated due to violations of Youtube Policies.

Algorithms and Data structures

Book of Elementary Algorithms and Data structures

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Problems explained with Java, OO good practices, visualizations, and free online resources.

Classical algorithms and data structures implemented and explained using JavaScript.

A great way to implement algorithms with their specific programmable tasks.

The basic concepts and usages of data structures.

An illustrated book on algorithms with practical examples.

An introduction to algorithms for readers with no background in advanced mathematics or computer science.

A practical guide to concepts, theory and code.

has been touted by many to be best for getting that job in Google. In addition, he's also well-known for tutoring students in competitive programming competitions. If you're looking to brush up your knowledge on Algorithms, you can't go wrong with this course.

A different and a great way to introduce algorithms and data structures that can be used at work.

Algorithm Analysis

Randomized Algorithms

Cheat Sheets

Github Libraries

A library of common data structures and algorithms written in C.

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ISC

Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes.

7.7K
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8m
GPL-3.0

Classic algorithms and data structures in coffeescript. Making the World a better place, with coffee.

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4y 5m
MIT

Classic algorithms on C#

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n/a

Plug-and-play class-library project of standard Data Structures and Algorithms in C#

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MIT

100+ algorithms & data structures generically implemented in C#.

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8m
MIT

Algorithms & Data structures in C++.

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MIT

Several algorithms and data structures implemented in C++ by me (credited to others where necessary).

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1y 6m
MIT

C++ implementations of well-known (and some rare) algorithms, while following good software development practices

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9m
MIT

Implementations of popular data structures and algorithms

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3y 6m
Apache-2.0

Algorithms & Data Structures in Go

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Data Structures and Algorithms implementation in Go

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1y 26d
MIT

A collection of various useful algorithms and data structures along with their Java implementations.

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MIT

Algorithms and Data Structures implemented in Java

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1y 9m
Apache-2.0

Classic algorithms

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n/a

Java Algorithm Library for Problem Solving

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1y 7m
MIT

Algorithms and Data Structures

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8
3y 10m
GPL-2.0

Solutions for some common algorithm problems written in Java.

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Apache-2.0

modular and modern graph-theory algorithms framework in Java

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8m
MIT

Data Structures implemented in Java

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MIT

basic algorithms and solutions

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n/a

Solutions to popular data structure and algorithms problems

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MIT

🌊 Pretty, common and useful algorithms with modern JS and beautiful tests

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4y 63d
MIT

Atwood's Law applied to CS101 - Classic algorithms and data structures implemented in JavaScript

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MIT

Collection of classic computer science paradigms, algorithms, and approaches written in JavaScript.

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MIT

Javascript versions of classic software development algorithms

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💻 JavaScript implementations of computer science algorithms

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MIT

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

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MIT

Consumable Data Structures and Algorithms library in JavaScript

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MIT

🥞Data Structures and Algorithms explained and implemented in JavaScript + eBook

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MIT

🛠🛠🛠 Widely used Algorithms and Data Structures using JavaScript 🛠🛠🛠

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Implementation of some classic data structures and algorithms in Lua

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EKAlgorithms contains some well known CS algorithms & data structures.

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MIT

All Algorithms implemented in Php

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MIT

This repository is not maintained

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Data Structures and Algorithms in Python

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WTFPL

Algorithms implemented in Python

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Algorithms and data structures for educational, demonstrational and experimental purposes.

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MIT

Minimal examples of data structures and algorithms in Python

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MIT

How on earth can I ever think of a solution like that in an interview?!

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MIT

Ruby algorithms and data structures. C extensions

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MIT

algorithms playground for common questions

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Ruby implementation of Algorithms,Data-structures and programming challenges

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Purely Functional Algorithms and Data Structures in Scala

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Implementation of multiple string manipulation algorithms in Swift

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MIT

Examples of commonly used data structures and algorithms in Swift.

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Algorithms and data structures in Swift, with explanations!

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MIT

Share, discuss and learn about algorithm implementations!

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MIT

Collection of algorithms and data structures

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Unlicense

Mission: To provide a high-quality open content data structures textbook that is both mathematically rigorous and provides complete implementations.

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Solutions and reference implementations for algorithm problems

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8m
MIT

Online Judges

Online Judge and problem archive.

Hundreds of problems from previous ACM-ICPC Regionals and World Finals.

Research based algorithmic problems.

Japanese programming contest website.

Korean Online Judge. 10000+ problems. Supports 60+ languages.

Holds online contests and IOI practice contests

More problems and monthly online contests.

The only programming contests Web 2.0 platform

Practive programming and tackle out your next tech interview

Real world contests online!

A website that houses support to solve algorithms in many languages in varying difficulty.

A decent website with algorithm challenges from beginner to advanced levels. Supports most of the popular languages like C++, python, javascript, ruby.

Firecode.io uses machine learning algorithms along with curated real-world interview questions, solutions & a vibrant social community of learners to get you ready for your next coding interview.

Website that have problems based on Maths, Data Structures, Various Algorithm and also conducts Coding Competition.

Practice alogrithmic problems & challenges and participate in hiring challenges.

Featured algorithm and functional programming online judges

Chinese and English problem solving practice and recruitment challenge site.

Romanian Online Judge. 1500+ algorithmic problems

Learn, practice and prepare for interviews.

Online judge and problem archive

Korean Online Judge(Half English). 1300+ problems.

Learn and practice algorithms by solving challenges online.

Chinese Online Judge.

Mathematical problems that can be solved using algorithms (or just a pencil, depends on how much you already know).

A platform for learning bioinformatics and programming through problem solving.

Online Judge and contest host with a lot of algorithmic problems in the archive to practice.

An introductory Python course with 100+ algorithmic problems and a step-by-step debugger (from Russia).

More problems.

Lots of problems and real world/money worthy problems in Graphic Design, Data Science and Development.

URI

Brazilian Online Judge. Not so much problems, but it's growing and it has online contests.

UVA

Hundreds of problems (from previous ACM-ICPC Regionals, World Finals and others).

Blogs

Awesome blog for all the resources and list of books and algorithms.

A good blog by Petr Mitrichev, mainly in Java.

Really informative blog for starting with the sport of programming.

For getting deeper knowledge of algorithms and how to think in right direction.

Tools

120+ interactive Python coding interview challenges (algorithms and data structures). Includes Anki flashcards.

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1y 83d
n/a

Related Awesome Lists

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The interdicplinary of Mathematics and Computer Science, Distinguisehed by its emphasis on mathemtical technique and rigour.

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