Hi everyone!
I would like to invite you to my fourth Codeforces Round, which I have made with my friends FastestFinger and TheOneYouWant. In terms of problems, it is my favorite among all my rounds.
With that said, I bring to your attention our new Codeforces Round 646 (Div. 2) that will take place on 31.05.2020 17:35 (Московское время). If your rating is less than 2100, this round will be rated for you; otherwise, you can participate out of competition.
I would really like to thank:
- FastestFinger and TheOneYouWant for helping with preparing problems and giving new ideas.
- antontrygubO_o for coordinating our round
- 300iq, Jeel_Vaishnav, Ari, aryanc403, mahmoudbadawy, Vivek1998299, Uzumaki_Narutoo, Bakry, smartnj and Nikhil_Medam for testing the problems.
- MikeMirzayanov for Codeforces and Polygon platforms.
You will be given 6 problems and 2 hours to solve them. Scoring distribution will be announced later.
Good luck! :D
UPD: Scoring Distribution: $$$500-1000-1500-2000-2250-3000$$$
UPD2: Editorial (with memes, and detailed explanation) — Hope you guys enjoyed the contest! :D