Contributed foundational algorithm and data structure content to the krafton-jungle/KJ-ALGO-BOOK-9-303 and krafton-jungle/KJ-DS-BOOK-9-303 repositories, focusing on practical Python implementations and clear documentation. Developed draft chapters on graph algorithms, including Bellman-Ford and Topological Sort, and introduced a Segment Tree data structure with detailed explanations of two update strategies. Emphasized maintainable documentation and repository structure by performing targeted cleanup and content reversion where necessary. Leveraged skills in algorithms, data structures, and problem solving to create scalable, self-contained learning resources. Work was primarily conducted in Python and Markdown, supporting future expansion of algorithm and data structure chapters.