Good day to everybody!
Welcome to School Team Contest #1 that will be held on the 24th of October at 11:00 MSK. The contest will be official for school teams as a part of the series of winter programming school olympiads (http://codeforces.ru/blog/entry/753), and it will be informal (and not rated!) contest for everyone else.
To compete officially, each participant of a school team must at first register personally, then you must create a team of registered participants, and when registration to the contest opens, you must register your team there too.
I hope that the problems will be interesting for school students with different level of programming skills, and not only for school students! Pay attention to some differences from usual Codeforces contests. First, the duration of the contest is 5 hours, and there will be standard ACM rules. Second, problems will not be sorted in increasing order by their complexity, they will be shuffled. So your first problem for you is to find an easy problem :)
The authors of the problems are Mikhail Mirzayanov and me. Thanks to Gerald Agapov, Polina Bondarenko and Artem Rakhov, who helped me to prepare the round. Also thanks to Maria Belova for translating problem statements into English. We all are from Saratov State University.
UPD: After the contest start, it will be available PDF-versions of the statements: