Greetings Codeforces!
sammyuri, myst-6 and I are absolutely chuffed to bits to invite you all to have a go at Codeforces Round $$${12}_{10}$$$ (Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)), kicking off at May/23/2026 17:35 (Moscow time).
There will be 9 absolute cinema problems for you to solve over the course of 3 hours, some problems will have multiple parts. This round will be combined for Division 1 and Division 2 and will be rated for everyone.
I’d like to raise a glass to the following brilliant minds for making this whole thing possible:
- Dominater069 for splendid coordination.
- Um_nik for preliminary review.
- The fine assembly of testers: arvindf232, EvenImage, Geothermal, Sana, Wansur, p0tato, __baozii__, Aotsuki, Dragos, catgirl, Monogon, nifeshe, Proof_by_QED, lucaski2, efishel, is_i, Argentum47, reirugan, naneosmic, chromate00, Nyemot, simplelife, eric899.
- moonpole for remembering to test.
- MikeMirzayanov and KAN for Codeforces and Polygon.
- You for participating.
Score distribution: $$$500 - 750 - (750 + 1000) - 2000 - 2500 - 2500 - 3250 - 4000 - 5000$$$
Now a few words from our sponsor.
Spectral::Technologies is an HFT fund – we build trading strategies and low-latency infrastructure for global markets. The people doing this: IMO, IOI, IPhO and All-Russian Olympiad medalists and top engineers – people who love the challenge and always want a bigger one. That's who Spectral was built for.
We are actively hiring! Check out our Quant roles:
- Junior Quant – 150–180k USD + profit sharing
- Middle Quant – 240–320k USD + profit sharing
- Senior Quant – 360–500k USD + profit sharing
We’re also hiring for C++, ML, and DevOps roles. Complete the application form to explore career opportunities with us.
We are excited to sponsor our second Round as part of Spectral::Cup 2026 — a three-round tournament where prizes get more valuable with every round.
Prizes for Round 2:
Top 30 will get laptop cases (390x290mm) + Codeforces-inspired anti-stress toys.
Make sure that you take part in at least two rounds to improve your chances to win the main prizes. We prepared bigger prizes for top performers by their final score in Spectral::Cup 2026. The final score is the sum of your best 2 results according to the GP100 scores.
- Top-3 by final score will get (1st) MacBook Pro, (2nd) iPad Pro, (3rd) Whoop — or USDT equivalent to the prize value
- Top-15 by final score will get Claude subscription
- 30 random participants among top 500 based on the final score will get additional prizes
Code fast, think faster – see you in the next round of Spectral::Cup 2026!
As an author, I can confirm this contest is absolute cinema.
As a participant, hope to become GM this time.
As a tester I must keep creating memes:
Looking at the score distribution, and bearing in mind the standard of the last match, I reckon this one is going to be absolutely brilliant!
I hope I can hold onto my Master status.
As an author.
As a te
As
When did I test this round?
Maybe when yiren was using wavelet matrix
Nife's divorced mother just made another div
absolute cinema
Top 30 will get an ellipsis... w problem setters
also it says codeforces round 12 lol
my first rated contest I'm excited I can do it but it conflicts with leetcode biweekly (w ragebait?)
It's round $$$12$$$$$$10$$$ = $$$1100$$$$$$2$$$
my rating will be absolute cinema after this contest :)
Wish to solve problem E
As
no interactive problem?
yea it suckssssssss (I got no clue how to solve interactives I'm just farming contribution lol)
But I like them!
I am heartbroken... no interactive problem (not that I can solve them)
at least I get +Delta regardless of how many I solve