On the 10th of July another international olympiad has ended. The 21st "Tuymaada" in mathematics, physics, chemistry and informatics took place in Yakutsk, Russia. Here's a link for statements and tests. Naturally, this is informatics:) The first day consisted of 5 problems whilst the second had only three. Each day lasted for five hours.
UPD. Now, thanks to Fefer_Ivan, it is possible to solve these problems on Codeforces, in gyms. However, there is only the first day available. I would be grateful if any of the participants could send me the solution book (electronic version), which were given on the closing ceremony.
UPD2. Some users prefer using .pdf to .doc. You can find .pdf files here.