Hi!
Tomorrow, on 23rd of January at 18:35 MSK Codeforces Round #340 (Div. 2) will take place. It's my first round, hope you enjoy the problems.
Thanks to GlebsHP for his help in preparing the problems, Delinur for translations of statements and MikeMirzayanov for Codeforces and Polygon.
Good luck!
UPD Scoring 500-1000-1250-1750-2750
UPD Editorial
UPD Congrats to winners!
Div. 2
Div. 1