MeLy OJ

A modern Online Judge system, forked from DMOJ

See our page at Coming soon!

Screenshots:

Installation

For MeLyOJ installation, look at INSTALL_FE.md

Support for over 60 language runtimes
Highly robust judging system:
- Supports interactive and signature-graded tasks
- Supports runtime data generators and custom output validators
- Specifying per-language resource limits
- Capable of scaling to hundreds of judging servers
Extremely configurable contest system:
- Supports ICPC/IOI/AtCoder/ECOO formats out-of-the-box
- System testing supported
- Hidden scoreboards and virtual participation
- Elo-MMR-style rating
- Plagiarism detection via Stanford MOSS
- Restricting contest access to particular organizations or users
Rich problem statements, with support for LaTeX math and diagrams
- Automatic PDF generation for easy distribution
- Built-in support for editorials
Live updates for submissions
Internationalized site interface
Home page blog and activity stream
Fine-grained permission control for staff
OAuth login with Google, Facebook, and Github
Two-factor authentication support

Check out DMOJ/judge-server for more judging backend details.

Supported languages include:

The judge can also grade in the languages listed below: