Hello, Codeforces!

We invite you to Codeforces Round #765 (Div. 2), which will take place in Jan/12/2022 15:05 (Moscow time). Note the unusual contest start time. This round will be rated for all the participants whose ratings are lower than 2100.

You will have to solve 5 problems in 2 hours. One of the problems will be divided into easy and hard version. The round is based on the problems from Belarusian Regional olympiad. We kindly ask all Belarusian pupils who participated in this olympiad, to refrain from taking part in this round and discussing the problems publicly before the round ends.

Thanks to everyone who helped to prepare this contest:

• Our coordinators, KAN and isaf27 for good coordination.
• Wind_Eagle, gepardo, VEGAnn, andrew for help in preparing the round.
• programmer228, Vladik for testing the round.
• MikeMirzayanov for making nice systems Codeforces and Polygon.

The scoring distribution: 500-1000-1500-2000-(2000+1250)

Good luck to everyone!

UPD: Finally the editorial is available.