Implement an online programming system similar to LeetCode. Multiple compilation service hosts (CR hosts) can be deployed in the background, and then oj_server service will load balance a large number of submitted requests to each CR host through algorithms. If a CR host crashes in the background, oj_server can also recognize correctly.
A LXC Based Online Judge Engine, by @wxh06 at @piterator-org
Algocode, coding context and practice platform, is a Django based microservices architecture backend for online judge platforms just like Leetcode.
A Service of Algocode - A leetcode like project to consume messages from Code-Manager Service and responsible for Executing User Codes in Secure Docker Environment, and Publish result to the Result Queue.
The auth-service for Algocode, a project in microservices. Algocode is a coding practice platform just like leetcode
A Service of Algocode - A leetcode like project to handle all the code submission and consume result from Remote Code Execution Engine Service
无服务器OJ，纯靠CF Worker和GitHub Actions死撑着……话说，这是Deepseek写的……嗯，就叫它CBOJ吧。
A CLI application that powers solutions verification process as a part of Overtest
StarOJ is an Online-Judge written in C#.
Mini Quera is a powerful, production-ready online judge system designed for programming competitions, coding assessments, and educational purposes. Built from the ground up with modern technologies and industry best practices, it provides a complete, scalable platform that can handle everything from small classroom assignments.
An Online Judge System built with .NET 9.0 and Clean Architecture
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