shareOI

shareOI is an open-source educational repository that collects presentation slides and learning materials for competitive programming and algorithm contests. It organizes resources into categories covering fundamental algorithms, data structures, graph theory, dynamic programming, strings, mathematics, and computational geometry. Most materials are provided in Chinese and target students preparing for programming competitions. The collection includes PDF and PowerPoint presentations contributed by educators and competitive programmers. Additional resources provide problem solutions and discussions of advanced algorithmic techniques. Its directory structure allows learners to browse materials by subject and difficulty. The repository welcomes community contributions and links to complementary learning platforms. It serves as a reference library rather than an executable software application.