Hello codeforces!
Today I finished solving yesterday's contest, problem B really helped me understand the concept of "MEX". I decided to search the Internet for sources on this topic and found a lot of useful things about this topic. Although this is not such an important topic for cp, I hope that knowledge of this topic will be useful in future rounds. Also today I was advised to start “Complete Training from Zero”, where, to my surprise, tasks were collected on the topics I needed.
Plans for tomorrow:
Take part in my first unrated round), continue "Complete Training from 0", solve problems from the archive and not be lazy, as I was today.
