Online Judge
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.
- GitHub: https://github.com/topics/online-judge
- Wikipedia: https://en.wikipedia.org/wiki/Online_judge
- Aliases: onlinejudge,
- Last updated: 2025-09-24 00:23:58 UTC
- JSON Representation
https://github.com/offamitkumar/uva--online-judge
Solution of Problem from Judge UVA. You can get Problem Statement , Solution File , Input File , Output file here.
competitive-programming cpp cpp11 cpp17 interview interview-practice interview-preparation interview-questions judge-uva online-judge problem-solving sports-programming uva
Last synced: 03 Mar 2025
https://github.com/boomzero/quicksubmit
a simple way to submit code to XMOJ in your terminal
cli collaborate deno online-judge xmoj
Last synced: 12 Apr 2025
https://github.com/ahmedosmandev/codeforces-solutions
Codeforces's problems solutions.
algorithms codeforces codeforces-solutions competitive-programming cpp data-structures online-judge problem-solving
Last synced: 15 May 2025
https://github.com/wil93/rws
Ranking Web Server: a standalone version
algorithm-competitions algorithms online-judge
Last synced: 12 Jul 2025
https://github.com/aiveraiva/problem-solutions
My solutions to online judge website: LeetCode, Zerojudge, etc.
dynamic-programming leetcode leetcode-solutions online-judge problem-solving python solutions
Last synced: 09 Apr 2025
https://github.com/ryuzakih/udebug-api
Unofficial API for udebug.com
api api-client client-api dev-skill facebook-hacker-cup google-code-jam judge library light-online-judge online-judge problem-solving solutions udebug uri-online-judge uva uva-online-judge
Last synced: 16 Feb 2025
https://github.com/Kejie-Wang/PAT
This is the source code for the PAT(https://www.patest.cn/contests/pat-a-practise) online judge
Last synced: 11 Mar 2025
https://github.com/the-redback/competitive-programming
:computer: :bar_chart: Competitive Programming environment and personal solution archive of different online problems.
cf-tools codeforces codejam competitive-programming contest-programming cpp iupc lightoj online-judge redback spoj topcoder uva
Last synced: 11 Mar 2025
https://github.com/udovin/solve-web
Web interface for udovin/solve
competitive-programming online-judge react web-interface
Last synced: 19 Feb 2025
https://github.com/mahfuzurrahman98/noobs-codeware
Noobs Codeware is a free and open-source online judge application written in PHP, JQuery, and Bash 5.0
code-editor competitive-programming online-judge php problem-solving
Last synced: 11 Jul 2025
https://github.com/nxhhoang/marisaoj-roadmap-solution
This is my journey learning competitve programming in MarisaOJ
competitive-programming cpp marisa online-judge roadmap
Last synced: 27 Feb 2025
https://github.com/darthmelonder/onpiler
Online Compiler
code compiler css django gcc html online-judge server-sent-events subprocess
Last synced: 22 Mar 2025
https://github.com/matheuscscp/fd8-judge
A modern online judge
cloud-native golang kubernetes online-judge
Last synced: 11 Aug 2025
https://github.com/penicholson/distributed-code-runner
Distributed code execution service
cloud distributed-systems kubernetes online-judge
Last synced: 13 Mar 2025
https://github.com/sojebsikder/online-judge-backend
online judge backend system created using Nest.js
docker nestjs online-judge redis socket-io typescript
Last synced: 27 Feb 2025
https://github.com/theanasuddin/dimikoj
Programming problem solutions for Dimik Online Judge using JAVA.
dimikoj java online-judge problem-solving
Last synced: 11 Mar 2025
https://github.com/samarjit98/nitw-oj
An online judge using Python sockets
computer-networks network-programming online-judge python socket-programming systems-programming
Last synced: 23 Mar 2025
https://github.com/nikhil25803/code-judge
An online code judge platform (like leetcode). Remote code execution in a docker container invoked by Lambda function.
aws aws-lambda docker lambda-docker nextjs online-judge python3 remote-code-execution typescript
Last synced: 04 Apr 2025
https://github.com/olimsaidov/judge-pro-checker
Solution checker for Judge Pro (ala acm.timus.ru)
Last synced: 04 Mar 2025
https://github.com/maple3142/practice
cpp online-judge practice solutions uva
Last synced: 29 Jun 2025
https://github.com/xmcp/judgelight
代码一键提交OJ，刷题必备
automation bzoj oi online-judge poj scraper tkinter
Last synced: 28 Feb 2025
https://github.com/novpath/c-programming-language-3rd-edition--exercise
《C语言程序设计（第3版）》《实验与习题指导（第3版）》 - 何钦铭 颜晖 - 习题与编程题解答
Last synced: 22 Mar 2025
https://github.com/AhmedOsmanDev/Codeforces-Solutions
Codeforces's problems solutions.
algorithms codeforces codeforces-solutions competitive-programming cpp data-structures online-judge problem-solving
Last synced: 10 Apr 2025
https://github.com/thunderstruct/acm-scoreboard
ACM scoreboard developed for codeforces.com. Written purely in JavaScript/JQuery, HTML, and CSS
acm acm-icpc codeforces customizable online-judge scoreboard tools
Last synced: 14 Mar 2025
https://github.com/nicehorse06/neetcode150-note
Neetcode 150 Solution Notes
blind75 leetcode-solutions neetcode150 online-judge python
Last synced: 23 Jul 2025
https://github.com/artdragonxox/nightcord-server
nightcord代码沙箱服务端
code-runner gin go online-compiler online-judge
Last synced: 06 Apr 2025
https://github.com/mdminhazulhaque/online-compiler
:hammer: PHP based online compiler
compiler online-judge php popen proc process
Last synced: 22 Sep 2025
https://github.com/dwip-nandi/codeforces
Problem Solving and Contest Solutions...This repository contains my solutions to various problems from Codeforces contests. Each solution is implemented in C++ and includes a brief explanation of the approach used to solve the problem. The repository is organized by problem number and contest, making it easy to navigate and find specific solutions.
algorithm alice boob codeforces codeforces-com codeforces-solutions competitive-programming competitive-programming-contests contest cplusplus cpp dsa graph online-judge problem-solving solution-contest solutions stl string tree
Last synced: 07 Jul 2025
https://github.com/hamidhosen42/programming-contest-data-structure-and-algorithm-by-md-mahbubul-hasan
Programming-Contest-Data-Structure-and-Algorithm-by-Md-Mahbubul-Hasan
c-plus-plus c-programming lighoj online-judge problem-solving
Last synced: 20 Feb 2025
https://github.com/alpha74/onlinejudge-hackathonsystem_javaspringboot
Online Judge/Hackathon system LLD interview design. Coded in Java, Spring Boot.
hackathon hackathon-system interview java machine-coding machine-coding-interview mvc online-judge oops spring spring-boot system-design
Last synced: 05 Mar 2025
https://github.com/abdeltwabmf/competitive-programming-3
My Solutions to problems in [Competitive Programming 3]
apsp competitive-programming-3 graph graphs-algorithms online-judge pairs-shortest-paths problem-solving-paradigms sssp
Last synced: 20 Feb 2025
https://github.com/grihabor/tesver
Testing server
contest-platform docker online-judge server testing
Last synced: 04 Mar 2025
https://github.com/shan18/code-warrior
An Online Judge Platform built using Django
competitive-programming django online-judge python
Last synced: 26 Feb 2025
https://github.com/kimminss0/baekjoon
Solutions for Baekjoon Online Judge
algorithms baekjoon baekjoon-online-judge boj coding-challenge online-judge problem-solving
Last synced: 15 Mar 2025
https://github.com/aksweb/online-judge
An open platform to host programming contests.
coding-challenge contest-platform cpp cppjudge online-judge open-source-programming-contest-platform
Last synced: 20 Feb 2025
https://github.com/sojebsikder/online-judge-frontend
Online judge frontend part
nextjs online-judge socket-io typescript
Last synced: 24 Jul 2025
https://git.hiifong.cc/mirrors/scnuoj
华南师范大学软件学院在线评测系统
bootstrap hacktoberfest online-judge scnu yii
Last synced: 01 Oct 2025
https://git.hiifong.cc/mirrors/jnoj
Jiangnan Online Judge
jnoj judge oi oj online online-judge onlinejudge yii2
Last synced: 01 Oct 2025
https://github.com/udovin/docker-alex-tsweb
Dockerized version of @alex65536 Tester Web.
competitive-programming docker-image online-judge
Last synced: 24 Feb 2025
https://github.com/pilgrimlyieu/sec-homework
Nanjing University SeeCoder Online Judge Software Engineering and Calculation Homework
cs61a homework nanjing-university nju oj online-judge python software-engineering
Last synced: 26 Feb 2025
https://github.com/mdashraful305/codeforce-api
This project utilizes the CodeForce API to display user information and their rating in a chart.
api cli cli-utilities codeforces codeforces-api codeforces-coder codeforces-coders codeforces-tags command-line-tool competitive-programming online-judge programming-contests
Last synced: 02 Apr 2025
https://github.com/nicolasbizzozzero/online-judges
My answers to interactive problems asked from online-judge website
contest-solution online-judge online-judges
Last synced: 18 Feb 2025
https://github.com/rakibul263/xpsc-batch-04
This report is create for XPSC Club of Phitron.
codechef-solutions codeforces lightoj online-judge problem-solving
Last synced: 11 Mar 2025
https://github.com/hamidhosen42/competitive-programming-all-topic-and-recourse-list
Competitive programming all topic and recourse list
algotithms c-plus-plus number-theory online-judge problem-solving stl
Last synced: 20 Feb 2025
https://github.com/zemmsoares/codeflex2
Extension of competitive programming platform
competitive-programming hibernate online-judge plagiarism-detection react tailwindcss
Last synced: 02 Apr 2025
https://github.com/ahmed-dinar/justoj
An online platform for arranging programming contest.
competitive-programming online-judge programming-contests
Last synced: 13 Mar 2025
https://github.com/sbmaruf/codeforces_solution
Solution of some of the codeforces problems.
c-plus-plus competitive-programming fun online-judge programming-contests
Last synced: 26 Feb 2025
https://github.com/m0nt4ld0/timus-oj
Mis resoluciones de ejercicios de Timus Online Judge (https://acm-judge.urfu.ru/author.aspx?id=188437)
Last synced: 28 Feb 2025
https://github.com/sammyne/hacker-rank
Repository to host solutions to problems in HackerRank
Last synced: 16 Sep 2025
https://github.com/akash-singh112/oj
I created a full-stack Online Judge for students' code submission, which gives a verdict based on code correctness.
axios chakra-ui expressjs mongo nodejs online-judge reactjs
Last synced: 07 Apr 2025
https://github.com/hamidhosen42/problem-solving-algorithm-link
problem solving-algorithm-link
algorithms c-plus-plus data-structures online-judge problem-solving
Last synced: 20 Feb 2025
https://github.com/akibhaider/codenex
Smart Next Generation Competitive Coding Platform with smart reward system
css3 expressjs firebase-auth googleoauth2 html5 mongodb nodejs online-judge reactjs typescript
Last synced: 27 Feb 2025
https://github.com/gurkengewuerz/gitcodejudge
An advanced open-source online code execution system based on git
coding-competitions docker gitea golang icpc linux online-judge programming-contests python
Last synced: 07 Apr 2025
https://github.com/joaoarthurbirkheuer/beecrowd-exercises
Coletânea de exercícios realizados na plataforma Beecrowd (em sua grande maioria) em C++. Será atualizado periodicamente.
algorithm-challenges cpp20 dsa online-judge
Last synced: 23 Mar 2025
https://github.com/sammyne/leetcodecpp
A repository hosting solutions for my LeetCode training
Last synced: 18 Mar 2025
https://github.com/pilgrimlyieu/cpl-homework
Nanjing University Online Judge C Programming Language Homework
c c-programming-language cpl homework nanjing-university nju oj online-judge
Last synced: 26 Feb 2025
https://github.com/matheus-hrm/tap
Repositório para a disciplina de Tópicos avançados em programação, onde treinamos exercícios relacionados a programação competitiva
Last synced: 25 Feb 2025
https://github.com/wasm-oj/wonderland
WASM OJ Wonderland. Web UI and submission management for WASM OJ.
Last synced: 05 Sep 2025
https://github.com/mahmudebnezaman/beecrowd-solutions-dart
Solutions to BeeCrowd Online Judge problems in Dart, organized by category and problem ID. Clean code, beginner-friendly, and regularly updated.
beecrowd beecrowd-solutions competitive-programming dart online-judge
Last synced: 28 Jun 2025
https://github.com/xmcp/bridge
a solution to share a BZOJ account
bzoj cherrypy oi online-judge scraper
Last synced: 28 Feb 2025
https://github.com/pilgrimlyieu/cpl-project-ramfshell
南京大学大一 CPL 期末项目大作业——简易的内存文件系统 + Shell (RAM File System Shell)
c c-programming-language cpl homework nanjing-university nju oj online-judge
Last synced: 23 Jan 2025
https://github.com/alumik/algorithm-design-2020
Code labs for Algorithm Design Course (Spring 2020) of College of Software, Nankai University
algorithm-design cpp11 online-judge
Last synced: 16 Mar 2025
https://github.com/abhijayrajvansh/online-judge-solutions
competitive programming solutions from various online judges
a2oj-ladders codechef codeforces cses-solutions dsa-algorithm hackerrank leetcode online-judge
Last synced: 04 Aug 2025
https://github.com/akthrms/type-challenges-solutions
Type Challenges Solutions
online-judge type-challenges typescript
Last synced: 11 Mar 2025
https://github.com/jiachengxu/oj
All my solutions for online judge algorithm questions.
algorithms algorithms-and-data-structures leetcode leetcode-cpp leetcode-go leetcode-golang leetcode-java leetcode-python leetcode-solutions online-judge
Last synced: 20 Jun 2025
https://github.com/zehuichen123/leetcode_solution
personal solutions to leetcode (python, c++)
Last synced: 04 Aug 2025
https://github.com/hamidhosen42/stl-standard-template-library
STL-Standard-Template-Library. All STL Code with problem solving
algorithm c-plus-plus data-structures leetcode online-judge problem-solving stl
Last synced: 20 Feb 2025
https://github.com/liuderchi/codewars_katas_practice
collections of code katas from codewars in python and javascript
codewars javascript katas online-judge python
Last synced: 09 Apr 2025
https://github.com/means88/judge-backend
Online Judge backend.
django django-rest-framework docker online-judge
Last synced: 27 Feb 2025
https://github.com/chrisvilches/learn
Learning app. Generates math problems and tests your skills.
nestjs online-judge react typescript
Last synced: 12 Jul 2025
https://github.com/shivam-jainn/intui
Online Judge to run code on cloud . Leetcode and GFG alternative .
Last synced: 15 Mar 2025
https://github.com/hamidhosen42/stl-all-code-cps-academy
STL-all-code-CPS-Academy With Problem Solving
c-plus-plus-17 codeforces online-judge problem-solving-algorithms stl
Last synced: 20 Feb 2025
https://github.com/stefansundin/hax
Programming problems from online judges, etc.
Last synced: 06 Apr 2025
https://github.com/shuvokr/leetcode_solution
Solution for the leetcode oj problems
algorithms data-structures leetcode online-judge problem-solving
Last synced: 05 Sep 2025
https://github.com/breeze648/oj-algorithms
欢迎来到我的算法笔记仓库！本仓库整理了我一年来整理的高效算法模板与笔记，内容涵盖了图论、数据结构、数据库、模拟与字符串处理、搜索与回溯、动态规划、贪心以及数学知识等多个方面的内容。每个文档均附有详细的算法解析和C++代码示例，旨在帮助更好地理解算法原理以及如何在OJ（在线数学系统）中大家应用C++与STL。
algorithms cpp online-judge stl template
Last synced: 09 Mar 2025
https://github.com/nur-alam39/online-judges-problem-solutions
Solutions to various online judge problems like uva, codeforces, hackerrank, leetcode, atcoder, devskill, lightoj, codechef
c codeforces cpp devskill online-judge problem-solving programming-contests uva
Last synced: 24 Mar 2025
