I'd like to invite you to Codeforces Round #293 (Div. 2). It will be held on Tuesday, February 24 at 19:30 MSK and as usual Div. 1 participants are invited to join out of competition.
Great thanks to Maxim Akhmedov (Zlobober) for helping me preparing the contest, to Maria Belova (Delinur) for translating the statements into English, to Mike Mirzayanov (MikeMirzayanov) for the great Polygon platform and ideas of some problems and to my dear friends Pavel Kholkin (HolkinPV), Arthur Svechnikov (ikar) and Vitaliy Kudasov (kuviman) for writing solutions.
It will be a little unusual round — you will be given six problems and two and half hours to solve them.
UPD Score distribution will be 500-1000-1500-2000-2500-2500. Good luck everyone!
UPD2 Competition completed! Thank you all!
UPD3 You can find editorial here.
UPD4 Congratulations to the winners!