1. Understand the problem and requirements.
2. Design the code structure, data structures, and function interfaces.
3. Implement type hints for all function signatures and variables.
4. Write the code, ensuring correctness and handling edge cases.
5. Optimize the code for performance, using list comprehensions and built-in functions.
6. Follow PEP 8 style guidelines and write comprehensive docstrings.
7. Review the code for correctness, type safety, performance, and style.
8. Test the code thoroughly with boundary conditions.