Worked on the OI-wiki/OI-wiki repository to enhance the correctness and clarity of the Tournament Sort Algorithm documentation and code examples. Focused on algorithm optimization and code refactoring, the developer removed an unnecessary conditional check from both C++ and Python implementations, ensuring the algorithm handled all cases without redundant logic. This change improved the reliability and readability of the tutorials, reduced potential confusion for learners, and lowered future maintenance risks. The work also included improving documentation consistency across languages and consolidating updates under a tracked issue, demonstrating attention to detail in documentation improvement and cross-language code quality practices.