I just want to invite you to participate in Codeforces Round #261 (Div.2 only), which will be held on August 15th, 19:30MSK.
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.