We are glad to invite you to the Codeforces Round 586 (Div. 1 + Div. 2). Yes, it is rated!
The problems were invented and prepared by Alexponomarev7, adamant, lesswrong, wrg0ababd, allrats, I_love_QMsh, msmlkm and me, SerezhaE. A lot of thanks to 300iq and _kun_ for help in contest preparation, and also we want to thank MikeMirzayanov for Codeforces and Polygon systems.
The contest starts on Wednesday, September 18 at 16:05 UTC and you will have 2 hours to solve the problemes. I believe everyone will find interesting problem for themselves :)
UPD. Editorial is published!