AtCoder
atcoder.jpProgramming contest site for anyone from beginners to experts.
Education & Learningcompetitive-programmingcoding-contestsalgorithmsprogramming-challengesrankingonline-judge
About
AtCoder is an online competitive programming platform that hosts weekly algorithm and heuristic programming contests for participants of all skill levels. Users can compete in rated contests, track their performance via a global ranking system, and improve their problem-solving skills over time. The platform offers multiple contest categories including beginner, regular, grand, heuristic, and weekday contests.
Problem
Programmers lack a structured, competitive environment to practice and benchmark their algorithmic problem-solving skills
For
Programmers and students from beginners to competitive programming experts
How it works
Users register on the platform, participate in scheduled online programming contests, submit solutions to algorithmic problems, and receive a rating based on their performance
Business model
free
Status
launched