We are excited to invite you to TOKI Regular Open Contest #28 (Div. 2 Only, based on BNPC-HS 2022 Elimination Round) on Sunday, October 23rd 2022 19:05 UTC+7

Your rating should be less than 2000 or not yet rated in TLX to participate in this contest.

The contest will be 2 hours long and will feature 6 problems. Note that you should participate in the contest individually.

The problems were written by vioalbert, rfpermen, tyroflex, trainerherp, kresna, ConvexHull89, felix_suharjo.

Problem components were prepared by notwatermango, ConvexHull89, Carrotkun, felix_suharjo, alwyn, kresna, siplusplus, VinsenN, Owmicron.

We would also like to thank:

• prabowo and fushar for their help in hosting the mirror contest;
• KerakTelor for supervising the Scientific Committee;
• VincentGunardi, Zanite, kyonrevens, malfple, Chrisedyong, TypeYippie, ZeroScar, SunShine11, yumepeh, SirVin, blankts for testing the problemset and providing invaluable feedback; and
• Every BNPC-HS committee member, administrator, and manager.

BNPC-HS (Bina Nusantara Programming Contest for High School Students) is an annual competitive programming competition hosted by Binus University as part of BeeFest, a national-level competition for high school students.

We have put great effort into preparing this contest and we truly hope that you will enjoy it. See you in the contest!

UPD: contest is over!

Congratulations to our top 5:

1. i_love_varya
2. cutmdo
3. Nots0fast
4. siganai
5. andreast12

Congratulations to our first solvers:

• A. i_love_varya
• B. i_love_varya
• C. i_love_varya
• D. i_love_varya
• E. Nots0fast
• F. i_love_varya

You can upsolve the problems here.

Thank you for participating!

UPD 2: editorial is available in the upsolve link.