Worked on enhancing the cpinitiative/usaco-guide repository by improving the documentation for advanced mathematical content, specifically clarifying expressions related to multiplicative functions. Focused on increasing the accuracy and readability of the guide, the update targeted the Advanced section and was implemented using Markdown and MDX. The approach emphasized technical writing and mathematical precision, resulting in clearer explanations that support smoother onboarding for new users and reduce potential support queries. No bugs were addressed during this period, but the documentation enhancement contributed to the long-term maintainability and reliability of the guide, demonstrating attention to detail and effective use of version control.