Worked on the algo-study repository, delivering a focused refactor to enhance maintainability of the LIS dynamic programming components. The main contribution involved reorganizing the codebase by moving the BOJ_11055 implementation from a general dp directory into a newly created dp/lis directory, grouping all LIS-related algorithms together for improved modularity and discoverability. This structural change, implemented in Java, aimed to streamline onboarding for future contributors and lay groundwork for upcoming LIS enhancements. Emphasizing code organization and disciplined version control, the work prioritized long-term maintainability over immediate feature expansion, with no major bug fixes addressed during this period.