This weekend, at 16:05 UTC on November 12th, 2017 we will hold Codeforces Round 445. It is based on problems of Technocup 2018 Elimination Round 3 that will be held at the same time.
Technocup is a major olympiad for Russian-speaking high-school students, so if you fall into this category, please register at Technocup 2018 website and take part in the Elimination Round.
I want to thank MrKaStep, komendart, veschii_nevstrui, bixind, AndreySergunin and DPR-pavlin, who authored and prepared problems for Technocup, and Lewin, who kindly suggested the last problem. I also want to thank zemen and AlexFetisov for testing the round.
Div. 1 and Div.2 editions are open and rated for everyone. Register and enjoy the contests!
UPD: We apologize that we run into technical issues during the round. The round will be unrated. I hope you liked the problems.
Anyway, congratulations to winners!
Editorial is published.