I'm quite excited to invite you to participate in Codeforces Round #447 (Div.2 Only) which will be held on November 19 16:55 MSK.
All five problems are created by Zerui Cheng (Marco.L.Tsien), Bingheng Jiang (NOIRP), Yiming Feng (whfym). And it's our first round on Codeforces.We want to show our great thanks to our school The High School Affiliated to Anhui Normal University and our coach Guoping Ye in competitive programming training.
And we also want to show our great appreciation to Mikhail Krivonosov (mike_live), Gleb Lobanov (glebodin), Weihao Zhu (Tommyr7), Shiqing Lyu (cyand1317) for testing the problems,to Nikolay Kalinin (KAN) for coordination and to Mike Mirzayanov (MikeMirzayanov) for the fantastic Codeforces and Polygon platforms.The round can't be realized without their great help.
The contest will consist of 5 problems and you'll be given 2 hours to solve them.As usual,the scoring will be announced shortly before the start of the contest.
The contest is rated for Div. 2 contestants. And the same as before, Div. 1 contestants can take part out of competition.
Wish everyone high rating and bugless code!
See you on the leaderboard!