All the problems were authored and prepared by vaaven and me.
You will be given $$$5$$$ problems, one of which has two subtasks. You will have 2 hours to solve them.
We would like to thank everyone helped a lot with round preparation:
- First of all, errorgorn and lollihunter for help with translating the terms into English.
- Aleks5d and KAN for excellent coordination.
- Ormlis, kostia244, errorgorn, Ziware, Makcum888, m371, fishy15, Sprdalo, Riladavin, Ekler, FairyWinx, olya.masaeva, LetterC67, vasilykuzmin22, TheEvilBird, JAMMY, Kolychestiy, QuangBuiYT, nikolayfedoroff and WinCrash91 for testing and useful feedback.
- MikeMirzayanov for great Codeforces and Polygon platforms.
Score distribution: $$$500$$$ — $$$750$$$ — $$$1500$$$ — $$$(1500 + 1000)$$$ — $$$2750$$$.
Good luck everyone!