I am pleasured to invite you to take part in Hello 2023, which will take place in Jan/03/2023 17:35 (Moscow time)!
This round consists of $$$8$$$ tasks waiting for you to solve in $$$150$$$ minutes, and will be rated for everyone!
As an author, please allow me to express my sincere thanks to:
- dario2994, for being responsive, his amazing guidance, helping me prepare one of the problems and his truly wonderful coordination!
- KAN, for rechecking and translating the round!
- wxhtzdy, for proposing rejected tasks and discussing every problem with me
- Giove, for a problem idea which fits a gap.
- Um_nik, gamegame, JovanB, Marko, cip999, nweeks, NemanjaSo2005, Sofija06, Fikuss, badlad, Jovan08, for providing valuable feedback and submissions during testing!
- MikeMirzayanov, for great platforms Codeforces and Polygon!
I hope you enjoy our problems and have a wonderful $$$2023$$$!
UPD1: New score distribution is $$$500 — 750 — 1250 — 1500 — 2250 — 2250 — 2750 — 4000$$$.
UPD2: Editorial is out!
UPD3: Congratulations to the winners!
UPD4: Also, congratulations to the first solves of each problem!