The next competition - Codeforces Round 101 for participants Div2 will take place through a pair of hours, but the others can traditionally participate out of competition. It has been prepared by a small command of authors: me (NALP), Polina Bondarenko (Polichka) and Gerald Agapov (Gerald). There were Artem Rahov (RAD), Maria Belova (Delinur) and Michael Mirzayanov (MikeMirzayanov) with us as always.
It is a little bit about authors: all of us study at the Saratov State University at faculty of Computer Sciences and Information technology on 4th course. Now in free time from competitions and problems we pass the exams :) I’m a 1/3 part from command Saratov SU#2, and Gerald with Polina - 2/3 from Saratov SU#1. We would like our rounds became kind tradition on Codeforces and you have seen us among authors soon again.
We hope that this problems will be pleasant to all participants and everyone will take the deserved high place in the total table. Today you will help Santa Claus, Elf, Vasya and the other characters. All the similarities to real people are casual :)
The points on problems are distributed today in this way: 500-1000-2000-2000-2500
UPD: You can read the tutorial here.