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.
A modern open-source online judge and contest platform system.
Judging backend server for the DMOJ online judge.
The online judge service with millions of submissions, since 2005.
A modern open-source online judge and contest platform system.
Solutions to problems from various online judges / contest sites.
LQD Online Judge
Judging daemon for programming contests
华东师范大学在线测评系统。https://acm.ecnu.edu.cn/ https://eoj.i64d.com/
Judging backend server for the VNOJ online judge.
Lessons and problems for introductory Python 3 course
The all-purpose competitive programming Discord bot! Discord to online judge integration. AtCoder/CodeChef/Codeforces/CSES/DMOJ/Leetcode/Szkopuł/TopCoder/WCIPEG
Luyện Code Online - Học lập trình tương tác trực tuyến
Online C compiler application using Flask (developed by OpenGenus Intern, Devansh Thapa)
A judge 👨🏽⚖️ for your programs, run and test your programs using python
Litmus Online Judge (Site)
Life is short, judge locally. 适用于OJ练习的本地评测工具。开发版本：https://github.com/NoCLin/LocalJudge/tree/dev