In case you want to take part in Yandex.Algorithm 2018 but somehow haven't registered yet, you might want to follow this link.

Qualification round has started at 00:00 Moscow time, February 17th. Round is a virtual competition 100 minutes long. You can start it at any moment of time till 23:59 on Sunday, February 18th (Moscow time).

We recall that in order to be able to participate in elimination stage one needs to accept at least one problem at qualification round. However, everyone who managed to accept at least one problem during warm-up has already qualified to the next stage.

Judges ask all the participant to withdraw from any problem discussion and do not publish any solutions till 01:40, February 19th.

Good luck, we hope that you will enjoy the problems!