Today at 13:00 UTC there will be a Warmup Round of Yandex.Algorithm 2017. This is a great possibility for you to get familiar with TCM/Time contest format, and also to pass to the elimination round of the competition by successfully submitting at least one problem.
In order to participate in the competition, you have to register, the registration will remain open for the next week.
The link to the round will appear on the site of the competition shortly before the start of the round.
UPD: Round is over, thanks for the participation! Congratulations to four participants who successfully solved all problems:
All participants with at least one successful submission pass to the elimination round of the competition.
UPD2: Contest editorial.