Worked on improving documentation quality and maintainability for two core repositories, krafton-jungle/KJ-DS-BOOK-9-303 and krafton-jungle/KJ-ALGO-BOOK-9-303, with a focus on algorithms and data structures. Enhanced the C strings guide by reorganizing Markdown files, adding an introductory README, and removing redundant content to streamline onboarding for new developers. Expanded the Union-Find documentation with detailed initialization steps and Python code examples, including path compression optimization. Emphasized documentation management and cleanup to reduce future maintenance overhead, accelerate knowledge transfer, and provide a more consistent foundation for ongoing updates. Utilized Python and Markdown throughout the process.