Hey, Codeforces!** (*^‿^*)

Pinely is here! We are glad to invite you to participate in Pinely Round 5 (Div. 1 + Div. 2) which will start on which will start on Oct/30/2025 19:35 (Moscow time) Note the unusual time of the round.

• You will be given 8 problems and 3 hours to solve them. The round will be rated for everyone.

The problems were authored and prepared by pinely Endagorion ch_egor aleex AndreySergunin budalnik cdkrot gepardo gleb.shnshn Ormlis VArtem along with AmShZ and our special friend Golovanov399

Thanks for all your ideas, remarks, improvements and attention for details (*ˊᗜˋ*)/ᵗᑋᵃᐢᵏ ᵞᵒᵘ*

We would like to express our special thanks:

• Endagorion for curating the round on Pinely side and surviving through all storms

• errorgorn and KAN for the excellent coordination

• Testers team: Broder, jason_sun, efishel, A_G, CatsAreCool, reirugan, yuanruiqi, Wayne_Yan, madlogic, isaf27, weirdflexbutok, SirTechnical! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

• MikeMirzayanov for the great Codeforces and Polygon platform.

And, of course, you for participating (ᵔ◡ᵔ)

Prizes: The top 15 contestants will receive branded Pinely zip hoodies. Each hoodie can be personalized with custom name patches, making every prize truly unique.

To learn more about pinely you can visit our site or you can find our colleagues on CF in pinely organization.

UPD: Score Distribution

500 — 1000 — 1750 — 2250 — 3000 — 3250 — 3750 — 5000

☆ﾐ(o*･ω･)ﾉ Editorial is HERE

Congrats to winners! And everyone for participating ♥♥♥

• tourist
• Kevin114514
• Um_nik
• Petr
• jiangly
• Nachia
• ksun48
• hos.lyric
• BurnedChicken
• potato167
• VivaciousAubergine
• yosupo
• conqueror_of_tourist
• 353cerega
• 244mhq

Hey, Codeforces!

Pinely is here! Just like every year, we are sponsoring the PTZ competitive programming camp. As a part of this, we have prepared a contest for the participants and invite everyone to join it on Codeforces.

Pinely Round 2 (Div. 1 + Div. 2) is scheduled to start on Aug/30/2023 17:35 (Moscow time).

During this round, you will have the opportunity to solve 9 problems within a time frame of 3 hours. The round will be rated for everyone.

The problems have been authored and prepared by the Pinely team: AndreySergunin, ch_egor, Endagorion, amethyst0, zeliboba, zemen along with our special friend Golovanov399.

We would like to express our special thanks to:

• WrongAnswerOnTest3, bkbtpout, PurpleCrayon, Silver_Fox, maomao90, qrewetka, Vladithur, nigus, jdurie, alwyn, dorijanlendvaj, OAleksa, ognjentesic, Kostroma, oursaco, tiger2005, SSerxhs, absi2011, EternalAlexander, EternalJourney, wh0816, Kieray, socpite for testing,

• irkstepanov and KAN for coordination

• MikeMirzayanov for the amazing Codeforces and Polygon platforms.

We sincerely hope that you enjoy our contest. Wishing you good luck and lots of fun!

P.S. If you are interested in working at Pinely, please visit our website: https://pinely.com/, send us an email at hr@pinely.com or fill in the form here

Congratulations to the winners!

1. tourist
2. Radewoosh
3. QAQAutoMaton
4. jiangly
5. Ormlis

Editorial.

Hello, codeforces!

Pinely is a high-frequency trading company. We trade at the exchanges all over the world. This year we are the sponsors of the online PTZ competitive programming camp. We have prepared a fun contest for camp participants and invite everybody to join it on CodeForces!

Pinely Treasure Hunt Contest will be held on Saturday, Feb/05/2022 13:00 (Moscow time).

The participants will be offered to solve an interactive optimization problem with open tests and will have 3.5 hours to work on it. You can join individually or in teams of up to 3 people. The contest will be unrated. Winners among camp participants as well as the 3 best teams in overall standings will be awarded with pinely t-shirts.

Since the contest is targeted for participants of the PTZ training camp, it'll be most interesting for participants with codeforces rating 2000+.

We are grateful to MikeMirzayanov for the opportunity to host the contest on codeforces.

A couple of words about pinely: we conduct algorithmic trading on various exchanges. Our offices are located in Amsterdam, Singapore and Cyprus. Our colleagues face various challenges, such as: coming up with trading strategies and implementing them, optimizing trading systems to achieve the fastest reaction to the market events, storage and processing of high volumes of historical data. Ability to write effective C++ code, algorithmic thinking and mathematical intuition are all useful in our day-to-day work, so a significant part of our team participates in various programming and math competitions.

To learn more about pinely you can visit pinely.com or you can find our colleagues on CF in pinely organization. You can send us your CV to hr@pinely.com, even if you are not participating in the contest.

Good luck and have fun!

UPD Congratulations to the winners!

Winners of the joint contest:

1. itmo.algo.teaching: tourist, pashka, budalnik

2. SPb NRU ITMO 3: VArtem, antonkov, qwerty787788

3. xyr and his friends: wygzgyw, frame233, wasa855

Winners among the participant of PTZ training camp:

1. Never Give Up: Valera_Grinenko, ivanz, 353cerega

2. Saratov SU Daegons: awoo, Neon, vovuh

3. A-SOUL_Unofficial: ExplosiveVegetableClub, pigstd, dXqwq