Contributed to the OI-wiki/OI-wiki repository by delivering a documentation feature focused on enhancing the frac-programming.md section. The work involved adding a new exercise with clear attribution to the original author, ensuring transparency and proper credit. Emphasizing documentation quality, the developer utilized Markdown for content creation and applied remark-lint tooling to maintain consistent formatting and adherence to repository standards. All commits followed the conventional commit format, supporting maintainable version control practices. No bug fixes were addressed during this period, with efforts concentrated on improving documentation clarity, readability, and alignment with established workflows to facilitate future contributions and collaboration.