Hello Codeforces!

We organized a contest at our university in February 2026, and we are happy to welcome all of you to participate virtually or solve the problems later on.

Contest link: BU Intra University Programming Contest 2026

There are 10 problems and 180 minutes to solve them. Problems are not sorted by difficulty order. We recommend you to read all the problems.

This problemset were create for users with a rating range from 0 to 1700 but anyone welcome to participate virtually or upsolve the problems!

We would like to thank everyone who was involved in the contest preparation:

• AST_TheCoder, RD_TheCoder, GIVE_UP, RiBNAT, Ab-Mahin for creating the problemset.
• You for participating.
• MikeMirzayanov for Polygon and Codeforces platforms.

We tried our best to keep the statements short and clear and we hope you will like the problemset!

Happy Coding!