Online Judge topic

An online judge is an online system to test programs in programming contests. They are also used to practice for such contests like ICPC. The system can compile and execute your code, and test your code with pre-constructed data. Submitted code may be run with restrictions, including time limit, memory limit, security restriction, and so on. The output of the code will be captured by the system, and compared with the standard output. The system will then return the result.

List Online Judge repositories

judge0

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🔥 The most advanced open-source online code execution system in the world.

NOJ

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⚡ The most advanced open-source automatic algorithm online judge system | 南京邮电大学开源 Online Judge | QQ群:668108264

judge-server

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Judging backend server for the DMOJ online judge.

online-judge

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A modern open-source online judge and contest platform system.

Hydro

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Hydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)

ide

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✨ Simple, free and open-source online code editor.

vj4

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The online judge service with millions of submissions, since 2005.

voj

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A cross-platform online judge system based on Spring MVC framework and ActiveMQ.

library-checker-problems

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The problem data (Test case generator, judge's solution, task, ...) of Library Checker

PAT

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浙江大学PAT题解 https://pintia.cn