Hello Codeforces!

The series of Educational Rounds continues thanks to the support of the Computer Science and Artificial Intelligence (CSAI) program at Neapolis University Pafos, with scholarships provided by JetBrains.

Educational Codeforces Round 190 (Rated for Div. 2) will start on May/18/2026 17:35 (Moscow time).

This round will be rated for the participants with rating lower than 2100. It will be held on extended ICPC rules. The penalty for each incorrect submission until the submission with a full solution is 10 minutes. After the end of the contest, you will have 12 hours to hack any solution you want. You will have access to copy any solution and test it locally.

The problems in this round will partially intersect with Saratov SU internal contest (scheduled for 17th of May), so if you are a student of Saratov SU who participates in it, you have to skip this round.

You will be given 6-7 problems and 2 hours to solve them.

The problems were invented and prepared by Adilbek adedalic Dalabaev, Maksim Neon Mescheryakov, Alex fcspartakm Frolov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Big shoutout to testers of the round: shnirelman, awoo and FelixArg! Thank you for testing the problems.

Last but not least our friends at Neapolis University Pafos also have a message for you:

The final admission round for the BSc in Computer Science and Artificial Intelligence at Neapolis University Pafos is now open.

Key Dates:

• Application deadline: June 9, 2026

• Mandatory Entrance Test: June 14, 2026

Apply for a chance to receive one of up to 40 JetBrains Foundation Scholarships covering:

• full tuition

• accommodation

• monthly stipend

• visa support

Start your application and prepare before the final deadline!

Good luck to all the participants! I hope you will find our problems both interesting and educational.