Ссылки:
[1] https://old.regionolymp.ru/system/files/%21%D0%92%D1%85%20%D0%A1%D0%AD%D0%94-26-01-43-8%20%D0%BE%D1%82%2010.01.2018%20%D0%9E%20%D0%BF%D1%80%D0%BE%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8%D0%B8%20%D0%9C%D0%B0%D1%80%D1%82%D0%BE%D0%B2%D1%81%D0%BA%D0%BE%D0%B9%20%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%BE%D0%B2%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9%20%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B%20%D0%9E%D0%A6%20%D0%A1%D0%B8%D1%80%D0%B8%D1%83%D1%81%20%D0%BF%D0%BE%20%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5.pdf
[2] https://old.regionolymp.ru/computer_science
[3] https://old.regionolymp.ru/sirius