Eolymp Weekend Practice #1 (Complete)

Thanks for participating in Weekend Practice yesterday. We hope you had fun solving the problems, even though we've started the event with an outage. We apologize for the outage and will make sure the next round will go much smoother.

Problems are already available for upsolving along with editorials: The Cubes, The Strings, Some Comples Formulas, Scared String! and Is This FFT?.

Congratulations to the winners!

Special Thanks

Kudos to problem setters Illia Fursov, Maksym Shvedchenko and Illia Shevchenko, as well as to Anton Tsypko, for coordinating everything.