Competition will happen by usual rules of Codeforces, with hacks and score falling in process of time. All contestants who passed score no less than contectant of the 300-th place in the Round 1, can participate in the Round 2. Every other contestants can patricipate the Round 2 out of competition. Specially for contestants of the second division we prepared more easy unofficial problemset. The official problemset and the unnoficial one have some common tasks.
Round will be rated for all participants.
Some number of problems are waiting you. They are roughly ordered by the increasing complexity. Score distribution is standard for both divisions (500-1000-1500-2000-2500). Don't forget that during contest your solutions will be tested on a small set of pretests. Testing on full testset will be after end of the round. Pretests can don't cover all cases of input data, so you should test your solutions very carefully.
It is strictly forbidden to publish statements/solutions of the problems before round will be end. Also you shouldn't to talk about problems, discuss some things about possible solutions of them. Let's be honest! You can discuss problems after the end of round.
Top 50 contestant will be allowed to the Final Round. Also all contestant with score not less than score of the 50-th contestant will be passed.
Good luck for all!
UPD. We remind that the final of the Open Championship of Moscow and Moscow Region Programming (CROC) take place on April 27 in the office of the CROC. Note that CROC does not pay for the road and residence of the finalists. All participants must arrive at the final in the office of the CROC (Moscow) in the morning on April 27.
After the competition all participants will be provided to fill the form on the ability to participate in the finals of the competition. The first 50 participants on the results of the competition, which will confirm their participation in the finals, will be invited to final competition. You can confirm participation in the finals during the day after the end of Round 2.
It is recommended to fill the form, regardless of your results in Round 2, as large number of participants can reject the participation in the final.