We support multiple languages including Python, Java, C, C++, C#, and Kotlin. Check the submission form for the full list of currently supported languages.

You can submit a solution from the home page or problem view page by selecting a language, course (if applicable), and problem, then either uploading a code file or entering your code manually in the provided textarea. Click "Submit Solution" to process your submission.

After submission, your code is tested against predefined test cases. You’ll receive a result showing your score, the number of test cases passed, and detailed feedback for each test case. A loading overlay will appear while your submission is being processed.

Yes, the system supports dark mode. If your browser or system is set to dark mode, the interface will automatically adjust. You can also manually set the theme via cookies (if implemented in your settings).