A few hours later you're lucky to participate in Codeforces Round #132 for Div.2 participants, but traditionally the others can take part out of the competition. It has been prepared by me (NALP), Edvard Davtyan (homo_sapiens), Vitaly Aksenov (Aksenov239), Gerald Agapov (Gerald), Mary Belova (Delinur) и Mike Mirzayanov (MikeMirzayanov).
Traditionally I wish good luck, accepted solutions and successful hacking attempts for you!
Especially, we want to wish grand results and good luck to all sportsmens, who are representing their countries on XXX Olympic Games in London!
Today it is decided to use dynamic scoring system. But the problems will be sorted from low difficulty to high by authors' opinion!
UPD: The Round is finished, thanks to all for participation! We hope you have got fun!
UPD: Congratulation to winners!
UPD: Tutorial in English is published!