Soon is coming regular Codeforces round #171 for Div.2 participants. Traditionally Div.1 participants can take part out of the competition.
Again and again the problems were prepared by the familiar group of authors: Pavel Kholkin (HolkinPV), Igor Kudryashov (KudryashovIA), Nikolay Kuznetsov (NALP) and Gerald Agapov (Gerald). Traditionally thanks to Michael Mirzayanov (MikeMirzayanov) for Codeforces and Polygon systems and Mary Belova (Delinur) for translating the problems.
UPD: score distribution will be not standard a little bit: 500, 1000, 1500, 2000, 2000.
We wish everyone good luck, successful hacks, high rating and good mood)
UPD2: the contest is over, we hope you enjoy it)
Congratulations to winners:
UPD3: the editorial will be published soon