Competitive Programming

Competitive Programming

Websites and resources for Competitive programmers.

Competitive Programming (22)


Programming problems and contests in different domains of Computer Science. Solve interesting and challenging programming problems.


A portal and forum for computer science interview questions and technical articles.


HackerEarth is a network of top developers across the world.


CodeChef is a global competitive programming platform which supports over 50 programming languages.


Codeforces. Programming competitions and contests, programming community.


Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.


CodinGame is the gaming platform for programmers. Solve programming puzzles, improve your skills, share and have fun.


Learn how to code and build efficient algorithms.


Improve your skills by training w/ others on code challenges


A series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.

PKU JudgeOnline

A place where you can find large amount of problems from different programming contests. Online Judge System allows you to test your solution for every problem.

URI Online Judge

URI Online Judge is a project developed by the Computer Science Department of URI University. Our goal is to promote programming practice and knowledge sharing.


AtCoder is a programming contest site for anyone from beginners to experts.

Python Challenge

Python Challenge home page,The most entertaining way to explore Python. Every puzzle can be solved bya bit of (python) programming.


Coderbyte is a web application built to help people practice their programming skills with our collection of programming challenges.


Programmr is an online interactive lab for students and enthusiasts to learn, practice and become proficient in programming.

Challenge is a listing of challenge and prize competitions, all of which are run by more than 100 agencies across federal government.

Al Zimmermann's Programming Contests

Al Zimmermann's Programming Contests. Demented computer programmers compete for glory and for some cool prizes here.

UVa Online Judge

UVa Online Judge is an online automated judge for programming problems.

Aizu Online Judge

Online Programming Challenges.

Timus Online Judge

Timus Online Judge is the largest Russian archive of programming problems with automatic judging system.

Algorithms Power

Algorithm library: feel free to add one of your own and share it

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