In much the same way as the first round, all users can take part in the competition. But this round will be usual rated round only for the second division participants. The first division participants can take part too, but for them the round will be unrated. Please, do not get upset, the next Coder-Strike round (finals) will be rated round for the first division participants.
If you have any additional questions, please, ask at comments.
Good luck, and see you on the contest!
UPD 1. Sorry for delay, the score distribution is standard.
UPD 2. The contest is over, congratulations to the winners, hope you like the problems!