Greetings, CodeForces users. CodeForces Beta Round #15 will be held today, 29th of May at 19:00 MSK. My name is Roman Iedmeksyi and I am lucky to introduce this problem set.
I would like to thank Dmitry Matov, Julia Satushina and Mike Mirzayanov for well-coordinated work on this match. Also I would like to mention the contribution of Yaroslav Tverdokhlib in problems testing.
Some information about me:
I am a student of Kyiv National Taras Shevchenko University. I started programming at school. As my first achievement I had taken third place in Ukrainian Olympiad in Informatics. Next year I’ve worked harder and was qualified to IOI 2009 selection. Unfortunately I had not enough experience to pass.
In this contest I wish you good luck and high results.
UPD contest extended by 15 minutes