soulmachine/leetcode ? reverse-engineered prompt

I want this repository to build cleanly and generate the LeetCode solutions PDF from the C++ LaTeX source.

Please check the project, fix anything that prevents the book from compiling, and make sure the final PDF matches the existing content and formatting as closely as possible. If something is missing, out of date, or broken in the LaTeX setup, update it so I can open the repo in VS Code and run the build without extra hassle.

If you need current docs or best practices for the LaTeX tools, look them up online. After that, make sure the build works both from the command line and in the dev container, and leave me with clear instructions for how to generate the PDF locally.