Mahima Kumari contributed to the GDG-IGDTUW/DSA-1 repository by delivering two features focused on solution lifecycle management and documentation enhancement. She developed a new C++ implementation for the Smallest Range in K Sorted Lists problem, replacing an outdated version to improve code clarity and maintainability. Her work included rigorous codebase maintenance, such as removing duplicate files and enforcing consistent solution standards. Additionally, Mahima expanded user-facing documentation by adding PNG screenshots of accepted LeetCode solutions, supporting better onboarding and reference. Her efforts emphasized algorithm design, data structures, and visualization, resulting in a cleaner, more navigable repository for future development.