DMOJ vs Project Euler
DMOJ
dmoj.caProject Euler
projecteuler.netSide by side
| Figure | DMOJ | Project Euler |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 2 | 1 |
| Spec score · Coding Challenge Platforms | 8.0 (#11) | 7.2 (#23) |
| Audience | DMOJ offers free public contest hosting and says educational organizations can contact it about hosting private contests for a small fee. | The problems are aimed at students, adults interested in mathematics, and professionals who want to keep their problem-solving and mathematics skills current. |
| Problem archive | The site hosts problems from past CCC, CCO, COCI, IOI, and JOI competitions, as well as other sources. | The archive lists problems 1 through 1003, and the recent page shows the ten most recently published problems. |
| Purpose | DMOJ is a modern contest platform and archive of programming problems, and is entirely open source. | The site aims to help people explore unfamiliar areas and learn new concepts in a fun, recreational context. |
| Support | The site asks users with questions about hosting contests to contact a moderator. | Privacy or security concerns can be sent to [email protected]; other queries are directed to the alternative forum. |
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.
Project Euler
Project Euler has no write-up on Specifiction yet; its figures are above.