A curated collection of competitive programming problems and solutions in Python, sourced from the most popular platforms. Every solution is adapted with unit tests for easy verification and learning.

• Python: 3.13.3

python -m venv .venv

Activate on Windows:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUse
.venv\Scripts\activate.ps1

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUse

| macOS / Linux | source .venv/bin/activate |

pip install -e .
pip install pytest

Prefer containers? Build and run tests with Docker:

docker build --target test -t myapp-test .
docker run --rm myapp-test

pytest

Or explicitly via the venv Python:

.venv/bin/python -m pytest

Remove temporary files and the virtual environment:

# Clear all __pycache__ directories and compiled files
find . | grep -E "(/__pycache__$|\.pyc$|\.pyo$)" | xargs rm -rf

# Remove the virtual environment
rm -rf .venv

⚠️ Note: The cleanup command uses rm -rf .venv (not rm .env) to remove the virtual environment directory.

Solutions are sourced from the following competitive programming platforms:

.
├── solutions/        # Problem solutions organized by platform
├── tests/            # Unit tests for each solution
├── pyproject.toml    # Project metadata and dependencies
└── Dockerfile        # Docker configuration

Contributions are welcome! When adding a new solution, please ensure:

1. The solution is placed in the appropriate platform folder.
2. A corresponding unit test is included.
3. All existing tests pass before submitting.

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