Welcome to Fair-Mashup – the ultimate tool for creating fair and balanced Codeforces mashup contests! 🎊

Fair-Mashup is a simple yet powerful web-based tool designed to help you build Codeforces mashup contests. The twist? None of the participants in the contest will have solved or even attempted the selected problems before! 🔥

Whether you're a competitive programmer, a trainer, or just a fan of mashups, this tool helps you select problems that match your difficulty preferences and tags, ensuring a level playing field for all participants. No more sneaky participants with unfair advantages! 😉

Participant Filtering: Add the participants’ usernames and ensure the selected problems haven’t been solved or even attempted (with wrong answers) by any of them.

Problem Tags: Choose problems based on specific tags like dp, graphs, greedy, and many more.

Difficulty Range: Set a minimum and maximum difficulty level to target problems that suit your contest's skill range.

Problem Links: Get direct links to unsolved problems from Codeforces – just one click away!

Mashup-ready: Once the problems are generated, you can use them to create a Codeforces mashup directly.

Enter the participants' usernames.

Select the tags you're interested in.

Define a difficulty range (minimum and maximum problem ratings).

Hit that submit button! 🎯

Get a list of unsolved problems that participants haven’t solved or even attempted with wrong answers, tailored to your mashup.

Click on the links and open the problems directly on Codeforces.

Fair-Mashup is built with:

Go 🐹 – Our backend that handles the heavy lifting of fetching data from the Codeforces API and filtering it based on participants’ solved problems and attempted problems with wrong answers.

HTML/CSS/JavaScript 🎨 – A clean and responsive frontend interface that makes it super easy to input data and view the results.

No external dependencies 📦 – We like to keep things simple. No need for Node.js or any other package managers. Just pure Go, HTML, CSS, and JavaScript.

Getting started is super easy:

Clone the repo:

Run the Go server:

Open the HTML page: Open localhost:8080 in your favorite browser, and you're ready to go!

Enjoy crafting your contest! 🎉

Once you load the page, you’ll find a simple form where you can:

Enter participant handles

Select problem tags

Set the difficulty range

After hitting submit, you’ll get a neatly formatted table with:

Problem Name 🏷️

Difficulty 📊

Tags (displayed as bullet points 🔵 for easy readability)

A link to solve the problem on Codeforces (because time is money, right? 💸)

Trainers: Ensure no participant has prior experience with the problems.

Friends: Want to have a friendly contest? This tool ensures fair play!

Competitive Programming Groups: Plan a contest that is perfectly balanced between all participants.

Some cool features we’re thinking about:

Adding more filtering options (like contest types or time constraints).

Adding support for multiple programming contest platforms (Codeforces is just the beginning!).

Dynamic difficulty adjustment based on participants’ previous performances.

Want to check out the live version? Click here to explore Fair-Mashup! 🌐

Found a bug? Have a cool feature idea? Pull requests are welcome! You can also open an issue if you want to discuss anything related to the project. Let’s build something awesome together!

Feel free to reach out if you have any questions or suggestions:

Yeneineh Seiba Tonja Email: yeneineh seiba GitHub: yesetoda LinkedIn: yeneineh (yesetoda) seiba

Happy mashup-ing! 🎉