Hello, Codeforces!
We are glad and excited to invite you to take part in Codeforces Round 1123 (Div. 2), which will take place on Sep/25/2026 17:35 (Moscow time). You will be given 2 hours and 15 minutes to solve 7 probmles. Problem F will be divided into subtasks.
| Problem | A | B | C | D | E | F1 + F2 | G |
| Score | 250 | 500 | 1000 | 1250 | 1750 | 1000 + 2000 | 3000 |
Problems were authored by KluydQ, Aldk, YF_YUSUF, Dibamboo and Wansur.
We would like to give special thanks to:
- 74TrAkToR for the great coordination and chance to host this contest.
- makrav, Kude, Friendiks, Error_Yuan, Sugar_fan, JovanB, lewc, Noobish_Monk, Daki-sa, ImDMka, Abilmansur-007, barbie, k1r1t0, Away_in_the_heavens, aryanc403, feresatcccccccc, Egorov_Dmitriy, QazLon, magagam, Arkanefury, Yessimkhan, liexes, GRIVA_, BzL16082010, spajzmand, knatwila, NickFuryy, PoDuReMaN, Dibamboo, AIibi for their time and effort in testing.
- MikeMirzayanov and KAN for the great Codeforces and Polygon platforms.
First time seeing a 250 points problem.
As a participant, my goal is to solve two problems. Good luck to everyone!
I didn't see A and B have this low points in a while. I hope I get my color back
As a tester, I love Wansur
Is 1000 point F1 a typo? If not why isn’t it just non-adjacent subtasks?
problem A :
2 + 2 =
Me in my FIRST contest: Problem A : 2 + 2 = 5 ???
Div. 3 disguised as Div. 2? 'Cause wym A is only 250
is F1 ez as a normal 1000pts prob :)?
I don't have a good feeling about this if C and F both have the same amount of pts.
No it's 74TrAkToR we are in great danger
First time where an author is a pupil ;)
Wait his peak is CM...