Sorry, but for a reason independent of Codeforces, we are forced to cancel the round. It was planned as a mirror of an onsite-olympiad, but suddenly it turned out that this would not work.
We will try our best to please you with other rounds. Stay tuned!
The round Educational Codeforces Round 80 (Rated for Div. 2) will start on Jan/14/2020 17:35 (Moscow time). Hope to see you as a participant!