You need to participate in the Qualification Round to make it to Round 1. Contestants who gain a score equal to the 1000-th place finisher score or greater will advance to the Round 1 (also you need to gain positive score).
At the Qualification Round you will find a few simple problems, roughly ordered by the increasing complexity. During the Qualification Round the problems are judged only on pretests and system testing will take place after the end of the Qualification Round (round continues for 24 hours). The pretests do not cover all possible cases of input data, test your programs carefully! The Qualification Round has no hacks or decreasing values of the problems.
The round will last for 24 hours, but it does not mean that we encourage you to spend all this time solving of problems. We hope that most participants will cope with the problems (or with most problems) in a shorter period of time. This duration of the round is chosen so that each participant could find a convenient time to participate.
Before the end of the round it is strictly forbidden to publish the problem statements/solutions/any thoughts and ideas about them elsewhere. It is forbidden to talk about the problems, discuss the statements and so on. Be honest and let the best men make it into Round 1. When the Qualification Round is over, you can discuss the problems and solutions.
You can register for the round at any time up to its end.
The results of the round will not affect the rating, non-competitive participation in the round is not allowed. However, all tasks will go to the archive after the end of the round.
Best of luck and enjoy solving the problems!
UPD: The contest is over! Thank you for your participation. We will remove cheaters soon and the results will become official.
Unofficially, the Round 1 cutoff is 1950 points.
UPD 2: We have removed obvious cheaters and people who are under 18 years old at the time of registration. If your results have been removed in error, please contact me for clarification. Now, the Round 1 cutoff is 1900 points.