DevSharma06/OnlineJudge

Online Judge

An Online Judge is a virtual arena that allows coders to submit solutions to a variety of programming problems, receiving instant feedback on the online judge accuracy and efficiency of their code. Whether you're a seasoned veteran or just starting out, the diverse range of problems available, from simple to complex, and in multiple programming languages, provides endless opportunities for growth and development.

Table of Contents

• Screenshots
• Features
• Technologies Used
• Installation
• Usage
• Contributing
• License

Screenshots

Features

• Allow users to create accounts and log in securely.
• Implement user roles such as User, Mod and Admin
• Display problem statements, input/output formats, constraints, and example test cases.
• Allow users to submit their code solutions in various programming languages.
• Validate code submissions for syntax errors.
• Evaluate submitted code against multiple test cases.
• Compile and execute submitted code using isolated environments.

Technologies Used

• MongoDB: 7.1.0
• Express.js: 4.18.2
• React: 18.2.0
• Node.js: 20.5.0

Installation

• Clone this repository to your local machine.

• Navigate to the project directory.

• Install backend dependencies.

  cd server
  npm install
  

• Install frontend dependencies.

  cd ../frontend
  npm install
  

• Configure environment variables.

  • Create a .env file in the server directory.
  • Add necessary environment variables (e.g., database URI, JWT secret).

• Start the server

  cd ../backend
  npm run dev
  

• Start the client.

  cd ../frontend
  npm start
  

• Open your browser and go to http://localhost:3000 to use the app.

Usage

• Register or log in to your account.
• Users can view the problems and check out the description of the problem by clicking on Solve and submit the solution of the problem in C/C++/Java/Python.
• Users with the role Admin/Mod have additional functions such as adding problems and test cases.
• When a problem is submitted, the result shows the number of test cases passed.

Contributing

We welcome contributions from the community! To contribute to Online Judge, follow these steps:

• Fork the repository.
• Create a new branch for your feature or bug fix.
• Make your changes and commit them.
• Push your changes to your fork.
• Create a pull request to the main branch of the main repository.

License

This project is under the MIT License