Hydro

Hydro is a high-performance online judge system. It is easy to deploy (with install script), light weight and extensible. Also see previous version at vijos/vj4

Now we have a SaaS service running at https://hydro.ac. (Fully free of charge!) You can easily have a glance at the features of the system and try it out. You can also just use the service without self-hosting the system with the powerful domain feature. Feel free to create an account and then navigate to MyAccount > MyDomains > Create Domain to create one.

中文

Open pre-configured test environment in Gitpod

We are now looking for help with Korean and Japanese translation, if you are a native speaker of these languages, please contact us, pull requests are always welcome.

Contact US

Email: [email protected] Hydro QQ User Group: 1085853538 Telegram Group @hydrodev Telegram @undefinedmoe

License

The software is distributed under AGPLv3 with additional terms.

Additional terms under AGPLv3 Section 7:

1. You must not remove the copyright declaration displayed in the software. (Under AGPLv3, 7(b))
2. When you distribute a modified version of the software, you must change the software name or the version number in a reasonable way in order to distinguish it from the original version. (Under AGPLv3, 7(c))
3. Unless permitted, you are not allowed to use author's name, trademark or logo to promote the software. (Under AGPLv3, 7(d))

Contributing

See CONTRIBUTING.md

Thanks to

In dictionary order:

• Github Code hosting and workflow.
• criyle Sandbox.
• Vijos UI framework.