Hello / Selamat sejahtera / 你好 Codeforces!
credits to gry3125
We, quacksaysduck and _ja are excited to invite you to Order Capital Round 2 (Codeforces Round 1104, Div. 1 + Div. 2), which will start on Jun/18/2026 17:35 (Moscow time)! In this round, you will help Ja the Ghost and Quack the Duck on their daily shenanigans.
This round will be in the format of an IMO mock. There will be $$$9$$$ problems which you will have to solve in $$$3$$$ hours. This round will be combined for Division 1 and Division 2 and will be rated for everyone. Please note that this contest contains at least one run-twice problem, so please read the guide for run-twice problems if you are unfamiliar with them.
All problems in this round were authored by quacksaysduck, _ja, StarSilk and zeemanz.
We would like to thank the following people for their contributions:
- Sugar_fan for his coordination and advice,
- Um_nik for preliminary review,
- Boboge for carrying the problem preparations,
- StarSilk and __baozii__ for providing some cool problems,
- Alexdat2000 for translating statements into Russian,
- _ja, Mitsukasa_Ayase, geospiza, leg, EvenImage, fallleaves01, Tobo, Code937, Boboge, Erica_aaa, andreumat, SSerxhs, Timmyliuyunxi, gongkoufadongji, chyragym, Misumi_Ichika, Syuzi777, __baozii__, _LeMur_, turkhuu622, oToToT, vito1036, FelixArg, SUL, marianoferesin, GILGAMESH, The_Lion_King_777, Hile_Meow, Sakuya_maid, edogawa_something, tiger2005, shendeliliang, Arpa, SergeiFedorov, -XraY-, VadymKa, scorpion, surokpro, lIlIlIlIIll, Buek for testing and providing valuable suggestions,
- MikeMirzayanov and KAN for the amazing Codeforces and Polygon platforms,
- and lastly, You for participating.
The score distribution:
Fun fact: As far as Evirir knows, this is the second round by Malaysians since 2020!
And now, a few words from today's sponsor!
👋Hello Codeforces!
I’m Igor -XraY-, CEO at Order Capital. Last year we ran our first Codeforces round and were genuinely impressed by the community response! So we’re happy to be back with Order Capital Round 2🚀.
We’ve prepared a fresh set of problems with interesting ideas and a few surprises along the way. Whether you’re here to push ratings, enjoy a good contest, or just vibe with interesting problems, jump in.
💸Just like last year, we’ll have prizes and some awesome merch for top performers as well as a few randomly selected participants.
Prizes
- 🥇 🥈 🥉 🎖 1–4 — 1000 USDT
- 5 — 800 USDT
- 6 — 700 USDT
- 7 — 600 USDT
- 8 — 400 USDT
- 9 — 300 USDT
- 10 — 200 USDT
🎁 PLUS:
Top 10 + 20 randomly selected participants ranked between 11 and 200 will get our secret Order Capital merch boxes 🎁
At Order Capital we are constantly developing and looking for talented ambitious people to join our team. Hit the button below to check out the career opportunities in Order Capital.
Enjoy the contest, have fun solving, and we hope to see your name near the top of the standings!
PS We reserve the right to apply strict compliance checks when finalizing the results in order to prevent unfair participation and rule violations.
UPD: Editorial is up.
