This time the problems are written by me and . Some information about us: we both are second year students of The Faculty of Mechanics and Mathematics of Kharkiv National University named after V.N. Karazin, and we are twin brothers. We began studying programming in the 10th form, about 2.5 years ago. We do not have any significant achievements in programming competitions yet, but we hope we still have time to get some :)
We would like to express our gratitude to Artem Rakhov who helped us to arrange this contest, and to Maria Belova who has translated the problems statements into English.
We wish good luck to everyone and hope you will find the problems interesting!
Link to results.