Mail.Ru Group together with Codeforces invites everyone to take part in the new Mail.Ru Cup competitive programming championship.

Rules

The championship is holding on the Codeforces platform in the format of four rounds: one practice round and three main rounds. Each round is open to all comers. There are no restrictions on participants in any of the rounds.

The practice round is intended for familiarization with the championship platform, participation in it is optional, the results of performances in the practice round do not affect the results of participation in the championship. It is unrated, the duration is 72 hours.

All three main rounds are independent, the results of participation in each of it do not affect the possibility of participation in next rounds. A competitor may take part in any number of main rounds. Each main round lasts 2.5 hours. All of them are open for everyone and rated for all participants.