Hello, Codeforces community!

We are thrilled to invite you to participate in the first-ever rated team contest of Toph.co: Tough Duo, April 2022 on April 14, 02:00 PM BST. To participate you will have to form a team of 2 members and be registered on Toph. You can create an account here.

The contest is rated for all participants. There are also prizes for the students of Bangladeshi academic institutions:

• 1st place: Toph goodies and 250 GB Portable SSD
• 2nd and 3rd place: Toph goodies

The authors of the contest are upobir, Shefin_, adnan_toky, thisIsMorningstar, rifatrraazz, Black_Be4rD, Short_Bit , TarifEzaz and Joty. Thanks to TarifEzaz for coordinating this contest and hjr265 for the Toph platform.

You will be given 7-8 problems and 3 hours to solve them. The contest will follow standard ICPC rules.

We've tried to create very engaging problems and robust datasets for this contest. We hope you will enjoy the problem set.

Also, there will be an editorial shortly after the contest ends.

Good Luck!

UPD: Congratulations to the teams! The problems are available for practice here. Editorials are attached to each of the problems separately.