Hello, Codeforces!
We are very excited to invite you to participate in Codeforces Round 11** (Div. 2) which will be held on Oct/26/2026 17:35 (Moscow time). You will be given 2 hours and 15 minutes to solve 7 problems.
The problems were prepared by yvbf, JerrySyr, MoScenix and me.
We would like to give special thanks to:
- Um_nik for the preliminary review of this contest.
- cry for the brilliant and great coordination.
- AksLolCoding, __baozii__, -firefly- for red testing.
- GUAIKATTO, 7_divided_by_3 for yellow testing.
- Edeeva, More, WorldWarV, yinruiyang for purple testing.
- Misaka16172, nik_exists, Yzm007 for blue testing.
- MORNING for cyan testing.
- MikeMirzayanov, KAN for the great platforms.
- placeholder for detailed Russian translation.
- TianTianChaoFangDe, tc_adventureking, MaxBlazeIceInk for providing problem ideas ( but declined :-/ )
The scoring distribution will be added soon.
We are such a group of committed codeforces users. It's our first time to hold a formal round on codeforces, hope we have more chances in the future, and so we also hope you enjoy the problems!
Good luck and have fun!
