This repository is a community-collected archive of course materials from the University of Science and Technology of China (USTC), one of China's leading research universities. It gathers notes, summaries, past exams, lab assignments, and code submitted by students across many subjects in the computer science department. The materials cover a wide range of courses including data structures, algorithms, operating systems, computer networks, computer graphics, probability and statistics, natural language processing, and more. Each course folder typically contains student notes, exam papers, lab code, and a summary. This is aimed at USTC students looking to prepare for exams, review past material, or understand how courses are structured. All content is either original student work or shared with permission, and the repository is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0, meaning it can be used freely for non-commercial study but not sold or republished without credit. If you want to download specific folders rather than the whole archive, the README recommends using a third-party download tool rather than GitHub's built-in zip download, since the repository is very large.
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