LeetCode Python Practice

A repository for practicing LeetCode problems using Python, managed with Poetry.

Project Structure

leetcode-python-practice/
├── solutions/          # Solution files organized by difficulty
│   ├── easy/
│   ├── medium/
│   └── hard/
├── tests/             # Test files for solutions
└── utils/             # Utility functions and helper classes

Setup

1. Make sure you have Poetry installed:

   curl -sSL https://install.python-poetry.org | python3 -

2. Install dependencies:

   poetry install

3. Activate the virtual environment:

   poetry shell

Usage

Solution Organization

Each LeetCode solution is organized in its own directory under the appropriate difficulty level with the following structure:

solutions/
└── [difficulty]/
    └── [problem-number]-[problem-name]/
        ├── README.md           # Problem description, approach, and complexity analysis
        ├── solution.py         # Solution implementation
        └── test_solution.py    # Test cases

Adding a New Solution

1. Copy the template from solutions/problem_template/ to create a new solution:

   cp -r solutions/problem_template solutions/[difficulty]/[name]_[number]

2. Fill in the problem details in README.md
3. Implement your solution in solution.py
4. Add test cases in test_solution.py
5. Run tests:

   poetry run pytest solutions/[difficulty]/[name]_[number]/test_solution.py

Code Formatting

This project uses Black for code formatting and isort for import sorting:

poetry run black .
poetry run isort .

Linting

Run Flake8 for code linting:

poetry run flake8

Dependencies

• Python 3.9+
• pytest for testing
• black for code formatting
• isort for import sorting
• flake8 for linting