Nguyen, Nhan; Nadi, Sarah (2022-10-17). An empirical evaluation of GitHub copilot's code suggestions. Proceedings of the 19th International Conference on Mining Software Repositories. MSR '22. New York, NY, USA: Association for Computing Machinery. pp.1–5. doi:10.1145/3524842.3528470. ISBN978-1-4503-9303-4. LeetCode questions come with test cases in various programming languages, ... (Python, Java, JavaScript, and C)