DMOJ vs Yandex Contest
DMOJ
dmoj.ca
Yandex Contest
contest.yandex.comSide by side
| Figure | DMOJ | Yandex Contest |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 1 |
| Spec score · Coding Challenge Platforms | 8.0 (#11) | 7.2 (#24) |
| Audience | DMOJ offers free public contest hosting and says educational organizations can contact it about hosting private contests for a small fee. | The maker names schools, universities, and competition organizers as users of the platform. |
| Contest formats | The contest system supports ICPC, IOI, AtCoder, and ECOO formats, along with system testing, hidden scoreboards, and virtual participation. | The platform supports individual and team contests, and contests may be open or restricted. |
| Purpose | DMOJ is a modern contest platform and archive of programming problems, and is entirely open source. | Yandex Contest is an online platform for programming competitions, practice, and lessons with automatic solution checking. |
| Support | The site asks users with questions about hosting contests to contact a moderator. | The maker directs users to a form for technical support about access, users, competitions, and task sets. |
Plans
In their own words
DMOJ
DMOJ is an open-source platform for programming contests and an archive of programming problems. Its archive includes tasks from past CCC, CCO, COCI, IOI and JOI competitions, among other sources, and it runs a monthly open programming competition. Public contests can be hosted at no cost. Contest formats include ICPC, IOI, AtCoder and ECOO, with system testing, hidden scoreboards and virtual participation. Judging supports interactive and signature-graded tasks, runtime data generators, custom output validators, per-language resource limits and scaling to hundreds of judging servers. Problem statements can include Markdown, LaTeX math and figures, syntax highlighting, PDF generation and built-in editorials. DMOJ integrates with Stanford MOSS for plagiarism checking and supports OAuth login, two-factor authentication and fine-grained staff permissions. Documentation is available for self-hosting the site and judge; the installation guide says the site is tested with MySQL and is unlikely to work with other databases. AI use is prohibited in rated contests, and judging resources cannot be used for AI training.
Yandex Contest
Yandex Contest is a free online platform for programming competitions, practice, and lessons with automatic solution checking. Organizers can create problems or select ready-made sets, then configure rules, deadlines, ratings, and invitations. Contests support individual or team participation and may be open or restricted. A testing server evaluates submissions according to contest rules. The platform lists more than 20 programming languages, with compiler settings for supported languages, and its demo includes checker-based, interactive, run-twice, test, text-answer, and matching problems. The public API uses OAuth permissions to register participants, manage groups, retrieve contest and problem details, submit or rejudge solutions, and export leaderboards. Users sign in with Yandex ID or organizer credentials. The organizer plan is free for up to 10,000 participants; organizers expecting more must contact Yandex. Full administrator-panel access requires a form.