We would like to thank:
gamegame for always being nice and supportive.
1-gon for making the author list more colorful.
MikeMirzayanov for the Codeforces and Polygon platforms.
There will be 5 problems in each division and will be given 2 hours to solve them (or post memes in the comments if you can't solve any).
We tried to make interesting problems, short statements, useful samples and strong pretests, and we hope you will like it.
Scoring will be announced shortly before the round and editorial will be posted shortly after the round (it is already written).
UPD: The number of problems is now 5 in each division.
UPD2: Score distribution:
- Div.1: 500 — 1000 — 1500 — 2250 — 3000
- Div.2 : 500 — 1000 — 1750 — 2250 — 3000
UPD3: Editorial is out
UPD4: We are sorry for problem div1E being well-known. No setter or tester have seen this problem. We apologize and hope you still enjoyed the contest.
UPD5: Congratulations to the winners: