Hello, Codeforces!
We are excited to invite you to participate in Codeforces Round 1120 (Div. 1) and Codeforces Round 1120 (Div. 2) on Sep/12/2026 17:35 (Moscow time).
The round will be rated for participants from both divisions. You will be given 6 problems and 3 hours to solve them. At least one of the problems will be divided into subtasks.
The problems were authored and prepared by me, CutSandstone, and sukon.
We would like to thank:
- abc864197532 for being the coordinator.
- Um_nik for preliminary reviewing the round.
- Alexdat2000 for translating the statements to Russian.
- baluteshih, dlu, kevinyu, MattTheNub, n685, nadya271, yunz_qiao, _istil, alvingogo, avnithv, awoo, BurnedChicken, Fysty, Misuki, passwordisa, pbj2006, snowythecat, WiwiHo, and YuukiS for testing the round and providing valuable feedback.
- KAN and MikeMirzayanov for the great Codeforces and Polygon platforms.
- And finally,
You
, for participating!
The scoring distribution is:
- Div. 1: $$$(500 + 1000)$$$ — $$$1750$$$ — $$$1750$$$ — $$$2500$$$ — $$$3000$$$ — $$$3250$$$
- Div. 2: $$$500$$$ — $$$1000$$$ — $$$(750 + 1250)$$$ — $$$2250$$$ — $$$2250$$$ — $$$3000$$$
We hope you enjoy the problems.
Good luck and have fun!
UPD:
Congratulations to the winners (subject to change):
Div. 1:
Div. 2 (trusted participants):
UPD 2:
