leetcode-env

A multi-language LeetCode workspace for offline development and testing, currently supporting C++, Python, and Rust.

Requirements

• macOS (uses Homebrew for dependencies)
• Homebrew
• just - task runner (brew install just)
• pyenv with virtualenv support (brew install pyenv pyenv-virtualenv)
• direnv (optional, for automatic environment activation) (brew install direnv)
• Claude Code (optional, for auto-generating tests)

Language-specific dependencies are installed automatically during setup:

• C++: cmake, GoogleTest
• Python: pytest
• Rust: cargo (via rustup)

Quickstart

1. Clone the repository and install the task runner:

git clone <repo-url> leetcode
cd leetcode
brew install just

2. Run setup for your preferred language(s):

just setup cpp           # C++ only
just setup py            # Python only
just setup cpp py rs     # All languages

The setup will prompt you to select a default language for just start.

3. Start working on a problem:

just start 1             # Fetch problem #1 (Two Sum) in your default language
just start 1 -l cpp,py   # Fetch for multiple languages

4. Run tests:

just test                # Run all tests
just test 1              # Run tests for problem #1 only

You can also run tests from within a language directory (cpp/, py/, rs/) for language-specific commands.