Hi, Codeforces!
Vladithur and I are pleased to invite you to our Codeforces Round 769 (Div. 2), which will be held on Jan/30/2022 17:35 (Moscow time). This round will be rated for participants with rating lower than 2100.
We would like to express our great gratitude to:
- irkstepanov and KAN for
not rejecting our tasksexcellent coordination of the round and assistance in preparing problems. - Ormlis, antontrygubO_o, generic_placeholder_name, Alexdat2000, Dart-Xeyter, wxhtzdy, sohsoh, glebustim, radal, snowysecret, stevancv, maxverr, Scrubpai, Artem1303, RomkaRS and MaxShch for testing the round and providing useful feedback.
- MikeMirzayanov for cool platforms Codeforces and Polygon.
You will have 2 hours to solve 5 problems, one of which is divided into two subtasks.
The scoring distribution is 500 — 1000 — 1500 — 2000 — (1500 — 1500)
We have tried to make clear statements and strong pretests for the problems and hope you will have fun and increase your rating!
Good luck!
Also, we would like to start the trend of evaluating the round's problems. We think it will give valuable feedback to authors and make future contests better. So please, vote for each problem after the round's end.
UPD: Editorial is here.
UPD2: Congratulations to the winners!
Div. 1 + Div. 2:
Div. 2:
