Hello, Codeforces!
We are glad to invite you to participate in Codeforces Round 1049 (Div. 2) on Sep/09/2025 17:35 (Moscow time).
You will have $$$2$$$ hours to solve $$$6$$$ problems and some problems will be divided into subtasks. The round will be rated for participants whose rating is below 2100, but higher rated users are also welcome to participate out of competition.
The problems were authored and prepared by shorya1835, Divine_Spark and wakanda-forever.
We would like to thank:
- Sugar_fan for his great coordination.
- Alexdat2000 for Russian translation.
- doofushmirtz, Dragokj03, Shubham_KV and ho-oh, for proposing problems that later weren’t included in the final set.
- Our list of testers for providing valuable feedback: fallleaves01, _istil, Andreasyan, andrei_boaca, __baozii__, IceKnight1093, Tobo, Boboge, temporary1, ButterflyDew, BiggestOtaku, Proof_by_QED, Friedrich, Darko1, satyam343, Welcome24ever, madlogic, MaxBlazeIceInk, harshith_04, weirdflexbutok, milind0110, tridipta2806, chromate00, priyanshu.p and Non-origination.
- MikeMirzayanov and KAN for the great platforms.
Good luck & have fun!
UPD: Score distribution: $$$500$$$ – $$$1000$$$ – $$$1250$$$ – $$$1750$$$ – ($$$1750$$$ $$$+$$$ $$$1000$$$) – $$$2750$$$
UPD2: Editorial has been posted.
UPD3: Congratulations to the winners!
Div. 1:
Div2:
