Hello everybody!
I just want to invite you to participate in Codeforces Round #261 (Div.2 only), which will be held on August 15th, 19:30MSK.
This round is prepared by ShayanH, Haghani and me. Special thanks to mruxim for helping us to prepare the problems. Actually, this is our first round and we hope you'll enjoy the contest.
Traditionally, we thank Gerald for helping us to get the contest prepared and also MikeMirzayanov, for the great Polygon system.
Main characters of our stories are two interesting persons, named "Pashmak" and "Parmida"; such a lovely couple! <3
Score distribution will be announced soon.
Have fun. ;)
UPD1: Dynamic scoring system will be used.
UPD2: We recommend you to read all problems, although they're sorted by their estimated difficulty.
UDP3: We also thank Aksenov239 who helped us a lot in fixing the Russian statements.
UDP4: It's over!
Congratulations to all people who solved the five problems.
These are the 7 top official contestants:
Editorial will be published soon.
UDP5: We're sorry for the delay. We put a brief editorial here.