I am glad to invite you to take part in Codeforces Round #870 (Div. 2), which will take place on May/05/2023 17:35 (Moscow time). The round will be rated for the participants with rating lower than 2100. Participants from the first division are also welcomed to take part out of competition.
You will be given 2 hours to solve 6 problems. All the problems were authored and prepared by me. One of the problems is interactive, please read the guide of interactive problems before the contest.
I would also like to thank:
- Akulyat for excellent coordination and help improving the problems!
- arzhantsev64, InversionSpaces, Aleks5d, PO3OBAR_Bblnb, DanWallgun, Dominater069, AlperenT, Sert, sdl, Daryusz, fishy15 for testing the round and giving valuable feedback.
- Special thanks to Sert for finding a crucial bug in one of the problems!
- MikeMirzayanov for great Codeforces and Polygon platforms!
Don't forget to read ALL the problems. I wish you good luck and high ratings!
I tried my best to create some good problems and clear short statements, so I hope you'll enjoy the round and find a problem you like :)
UPD: Winners and First-to-solve
Div1 + Div2