Hi, everyone!
The authors of Codeforces Round #152 are am-real, max777alex and me.
Special thanks to Gerald who helped us to prepare this round. Also, we want to thank Delinur for english statements. And we'd like to thank Seyaua and sdya for reading and testing problems of this round.
The round will be held on 25th of november at 19:30 in Moscow time, and it will take place in both divisions.
Score distribution div1: 1000 1000 1500 1500 2500
Score distribution div2: 500 1000 2000 2000 2500
Contest is over.
We appologize for ambiguity in the statement of the problem A. It was not clear whether it is possible to touch the goal post when the ball crosses the goal line. However, both ways to understand the problem statement were accepted. These solutions differ by an infinitesimal amount. The only thing that this ambiguity has effected a lot — hacks. All the hacks, which were based on the assumption that such touching is impossible, will be removed. Please, those who have done these hacks inform Gerald Agapov (Gerald).
We also apologize for the interuptions and problems with statements rendering.
Far from unanimous decision of the jury, it was decided to make this round rated. The rating will be recalculated on 26/11/2012 after removing of all relevant hacks.