DMOJ is a modern online judge and contest platform that also serves as an archive of programming problems. With its open-source nature, DMOJ hosts problems from prestigious competitions like CCC, CCO, COCI, IOI, and JOI, along with problems from various other sources. For competitive programmers, DMOJ organizes the DMOPC, a monthly open programming competition.

The platform encourages users to tackle harder problems by using a weighted points system, where solving difficult problems earns more points. Additionally, there is a bonus points system based on the number of problems attempted. DMOJ also offers rated contests, which reward participants with colored usernames corresponding to different ratings.

The platform provides efficient communication channels, allowing users to get in touch with administrators for assistance and report any issues they may encounter. DMOJ warmly welcomes contributions from individuals who can help translate the site, report and fix bugs, and add more problems to the rich problem database. Whether you want to practice on specific problems, set problems yourself, or host contests, DMOJ provides the necessary functionality to achieve your goals.

With its dedicated moderation team, DMOJ ensures a smooth user experience and constant support for educational organizations and individual users alike