Hi everyone. I'm glad to announce that the Codeforces Round 520 (Div. 2) will be held on Nov/14/2018 18:35 (Moscow time).

The round will be rated for Div 2 participants (whose rating lower than 2100). However, all the other participants can compete as well, without worrying about ratings being changed.

You will be given 2 hours to solve 6 problems. It's better to read all the problems. The scoring distribution will be announced soon before the contest starts.

All the problems were prepared by myself, with some help from my friend GiraffeCoder. I want to thank cdkrot for coordinating me in preparing the problems. I also want to thank csacademy for their graph editor tool. You can check it out at this link.

This is my first round I propose. I put a lot of work into it so I hope that you will enjoy it smiley face.

Wish you do your best and get a high rating!