Hola Codeforces!

I am happy to invite you to Codeforces Round 774 (Div. 2), which will take place on 04.03.2022 18:35 (Московское время). Notice the unusual time! The round will be rated for participants with rating lower than 2100. You will have 2 hours to solve 6 problems. The problems were authored and prepared by me.

I would like to thank the following people who made the round possible:

• darkkcyan for coordination and help in problem preparation.
• KAN for translating the statements.
• antontrygubO_o, errorgorn, mjhun, wxhtzdy, generic_placeholder_name, Supermagzzz, vinfat, fishy15, phattd, MarcosK, TeaTime, Stepavly, SebaMarin, CarusoX, snowysecret, ak2006, DeMen100ns and helcsnewsxd for testing and providing valuable feedback.
• MikeMirzayanov for great Codeforces and Polygon platforms.

See you in the standings!

UPD:

Scoring distribution: $$$750$$$ — $$$1000$$$ — $$$1250$$$ — $$$2000$$$ — $$$2500$$$ — $$$3000$$$

Thanks to ak2006, video editorials for some of the problems will be available on his channel after the round.

UPD: Editorial

UPD: Congratulations to the winners:

Official winners:

1. lydia1
2. mjhmjh1104
3. Turret
4. Vsinger_MoQingxian
5. WAduck
6. woolim
7. Iam1789
8. yagoo
9. Koba.rde
10. dtc03012

Unofficial winners:

1. Vercingetorix

2. Um_nik

3. hank55663

4. Umi

5. dlalswp25

6. disorientation

7. rainboy