We invite you to participate in CodeChef’s Starters 237, this Wednesday, 6th May, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Setter: Shreyan Dominater069 Ray and Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 234, this Wednesday, 15th April, rated for all users.

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Authors: Dominater069, Dragmon.

• Tester: SmolBrain

• Text Editorialist: IceKnight1093

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 233, this Wednesday, 8th April, rated for 6 stars (i.e. for users with rating < 2500).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 232, this Wednesday, 1st April, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin, Setter, and Statement Verifier: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 230, this Wednesday, 18th March, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Setter: Shreyan Dominater069 Ray

• Tester and Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 227, this Wednesday, 25th February, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier: Shreyan Dominater069 Ray

• Setter: Shreyan Dominater069 Ray, Nishank IceKnight1093 Suresh

• Tester and Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 226, this Wednesday, 18th February, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Author: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

Hi, The IICPC Codefest Prelims were held on 31st of January, and you can now solve the problems on Codechef.

The problems were authored by arpit_kr, synthborne and myself. I would also like to thank 244mhq, awoo, IceKnight1093, Soumil69 and Dragmon for testing.

Congratulations to all the participants who qualified. The entire ranklist will be mailed soon.

Top 5: (Global)

• Rank $$$1$$$ : yuto1115 (9 / 9)

• Rank $$$2$$$ : ttamx (9 / 9)

• Rank $$$3$$$ : maomao90 (8 / 9)

• Rank $$$4$$$ : SmolBrain (8 / 9)

• Rank $$$5$$$ : weirdflexbutok (7 / 9)

Top 5: (India)

• Rank $$$1$$$ : SmolBrain (8 / 9)

• Rank $$$2$$$ : weirdflexbutok (7 / 9)

• Rank $$$3$$$ : shorya1835 (7 / 9)

• Rank $$$4$$$ : sai-17 (7 / 9)

• Rank $$$5$$$ : ha___il (7 / 9)

We invite you to participate in CodeChef’s Starters 223, this Wednesday, 28th January, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin: Shreyan Dominater069 Ray

• Setter: Shreyan Dominater069 Ray and Nishank IceKnight1093 Suresh

• Tester and Statement Verifier: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 222, this Wednesday, 21st January, rated for 6 stars (i.e. for users with rating < 2500).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Author: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 219, this Wednesday, 31st December, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin, Setter: Shreyan Dominater069 Ray

• Tester and Statement Verifier: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

Hello!

Registrations for IICPC Global Codefest 2026 are opening soon. This is the first global edition of India's largest offline competitive programming competition.

About IICPC Codefest

IICPC (Intercollegiate Informatic and Competitive Programming Camp) is an academic and industry-backed organization focused on identifying, evaluating, and nurturing high-potential students in competitive programming, algorithms, and computer science fundamentals through rigorously designed, large-scale competitive examinations and camps.

We organize Codefest, a multi-stage competitive programming competition conducted across India. This year, we are opening participation to international students from 50+ countries.

The prelims is individual participation, and online for international students. The deadline for registration is 15th January, 23:59 IST.

Competition Structure

Prelims — January 31, 2026

• Offline, screen-proctored

• Open to students from India and eligible international countries

• Top 600 Indian students + 20 women → Regionals

• Top 5 international students[Online Participation] → Direct Finals qualification

International universities interested in hosting offline prelims can contact codefest-inquiries@iicpc.com

Regionals — March 14, 2026 (India only)

• Held at 9 IIT campuses

• 2 CP rounds + 1 CS fundamentals paper

• Top 75 → Finals

Finals — April 3-6, 2026

• IIT Madras Research Park, Taj Wellington & ITC Grand Chola , Chennai

• 75 Indian finalists + 5 international finalists

• 4-day event with contests, firm interactions, career fair

• Prize pool: INR 15+ Lacs

For International Finalists

Top 5 international performers in prelims qualify directly to Finals with:

• Travel and accommodation fully covered

• Interview opportunities with recruiting firms

• Access to all finale events

ProblemSetting Team:

IceKnight1093, Proelectro444, Dragmon, Queue, abhijain565aj, _Aditya_Jain_ , envariant, arpit_kr, Dominater069 and more.

Organizing Team

IICPC Website

Eligibility

Undergrads, Postgrads and School Students from 50 countries under India's e-Visa framework + China. See the full list here

Registration

Register now at codefest.iicpc.com.

For queries: codefest-inquiries@iicpc.com

Hope to see you participating. Good luck!

Sponsors

Title Sponsor: Optiver

Optiver is a global electronic market maker founded in 1986, providing liquidity across 75+ exchanges worldwide in options, equities, ETFs and bonds.

Titanium Sponsor: Jane Street

Jane Street is a quantitative trading firm and global market maker founded in 1999, trading on 200+ venues across 45 countries with approximately 3,000 employees.

Diamond Sponsors:

HRT

HRT (Hudson River Trading) is a quantitative trading firm founded in 2002, developing automated trading algorithms using mathematical techniques across multiple asset classes on 100+ markets worldwide.

Citadel Securities

Citadel Securities is a leading market maker headquartered in Miami, providing liquidity and trade execution across equities, options, fixed income and currencies, executing over 20% of US equity volume.

Jump Trading

Jump Trading is a proprietary trading firm founded in 1999, specializing in algorithmic and high-frequency trading strategies across futures, options, equities and cryptocurrencies with 1,600+ employees globally.

IMC Trading

IMC Trading is a proprietary trading firm and market maker founded in 1989 in Amsterdam, operating as a top-3 liquidity provider in listed options globally with 1,600+ employees across 90+ exchanges.

Platinum Sponsor: Millennium

Millennium Management is a multi-strategy hedge fund founded in 1989 by Israel Englander with over $79 billion in assets under management, operating through 300+ independent investment teams.

We invite you to participate in CodeChef’s Starters 218, this Wednesday, 24th December, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin: Shreyan Dominater069 Ray

• Setter: Shreyan Dominater069 Ray and Chromate chromate00

• Tester and Statement Verifier: Sushil SmolBrain Raaja

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 217, this Wednesday, 17th December, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin, Setter and Statement Verifier: Shreyan Dominater069 Ray

• Tester: Satyam satyam343

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 216, this Wednesday, 10th December, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin, Setter and Statement Verifier: Shreyan Dominater069 Ray

• Tester and Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 210, this Wednesday, 29th October, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Setter: Shreyan Dominater069 Ray

• Tester and Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 207, this Wednesday, 8th October, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

• Setter: Shreyan Dominater069 Ray, Nishank IceKnight1093 Suresh

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 206, this Wednesday, 1st October, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin: Shreyan Dominater069 Ray

• Statement Verifier and Tester: Sushil SmolBrain Raaja

• Setter: Shreyan Dominater069 Ray

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 204, this Wednesday, 17th September, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier: Shreyan Dominater069 Ray

• Tester: Sushil SmolBrain Raaja

• Setter: Shreyan Dominater069 Ray, Sushil SmolBrain Raaja, Proof_by_QED

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 203, this Wednesday, 10th September, rated for 5 stars (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin: Shreyan Dominater069 Ray

• Tester and Statement Verifier: Sushil SmolBrain Raaja

• Setter: Nishank IceKnight1093 Suresh, Shreyan Dominater069 Ray

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 200, this Wednesday,20th August, rated for all.

Time: 8:00 PM — 11:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin : Shreyan Dominater069 Ray.

• Editorialist : Nishank IceKnight1093 Suresh.

• Tester : Sushil SmolBrain Raaja.

• Setters: MathModel, chromate00, Proof_by_QED, BurnedChicken, Dominater069

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

Congratulations to Top 5 in Div1!

• Rank $$$1$$$ : potato167

• Rank $$$2$$$ : Nachia

• Rank $$$3$$$ : shiomusubi496

• Rank $$$4$$$ : TKT_YI

• Rank $$$5$$$ : hos.lyric

We invite you to participate in CodeChef’s Starters 199, this Wednesday,13th August, rated for 5 star (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier : Shreyan Dominater069 Ray.

• Text Editorialist : Nishank IceKnight1093 Suresh.

• Tester: Sushil SmolBrain Raaja.

• Setters: Shreyan Dominater069 Ray, Proof_by_QED

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 197, this Wednesday, 30th July, rated for 6 stars (i.e. for users with rating < 2500).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier : Shreyan Dominater069 Ray.

• Text Editorialist : Nishank IceKnight1093 Suresh.

• Tester: Sushil SmolBrain Raaja.

• Setters: Shreyan Dominater069 Ray.

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

We invite you to participate in CodeChef’s Starters 195, this Wednesday, 16th July, rated for 5 star (i.e. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Statement Verifier : Shreyan Dominater069 Ray

• Text Editorialist : Nishank IceKnight1093 Suresh.

• Tester: Sushil SmolBrain Raaja.

• Setters: Shreyan Dominater069 Ray, Nishank IceKnight1093 Suresh, Proof_by_QED.

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Good Luck!

Please note the unusual day of the week for the contest.

We invite you to participate in CodeChef’s Starters 194, this Sunday, 13th July, rated for all.

Time: 8:00 PM — 11:00 PM IST

Joining us on the problem setting panel are:

• Setters: Dominater069, DarkSparkle, jtnydv25, ExplodingFreeze.

• Contest Admin: Shreyan Dominater069 Ray

• Text Editorialist: Nishank IceKnight1093 Suresh.

• Tester: Sushil SmolBrain Raaja.

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.

Note:

• The contest is on a Sunday instead of the usual Wednesday, due to it being a more convenient time for some users. Only the rated for all contests may be held on Sundays instead (but upto the discretion of contest admin), the other contests on the usual Wednesday.

• The contest is yet again based off the IOITC Camp in India. If you have participated there or seen the problems otherwise, please refrain from participating.

• There may be a number of unusual problems, or problems with subtasks.

Good Luck!

Congratulations to Top $$$5$$$ in Division $$$1$$$.

• Rank $$$1$$$ : Nachia

• Rank $$$2$$$ : 244mhq

• Rank $$$3$$$ : kotatsugame

• Rank $$$4$$$ : potato167

• Rank $$$5$$$ : yydtq