Remember those times when people participated in ACM ICPC and wrote simplex-methods and different tools and there was no necessarity in filters, but code may not work anyway behind that code there were some non-trivial ideas comparing to nowadays where existing standards of software engineering reviews made by experts and many coders losing own ideas to follow those standards and people with inventing hacking systems on CF/TC started to obfuscate code to not get hacked and opposite movement as beautiful code-style thing (where code is neat but may not cover all test cases and have no non-trivial ideas is too broad situation) was invented, here comes a question maybe there is some closed group of persons who made conspirology theory to make others write neat code but they are writing working code?

Hello CodeForces community!

With great enthusiasm and excitement, I would like to invite you to register for CodeChef’s 5th edition of SnackDown which is open to anyone who has a knack for programming. In a truly global spirit of competition, CodeChef organizes SnackDown with an aim to bring the top coders from the world under one roof for its final onsite round in India. Along with the total cash prizes of $20.5K , there are special slots and prizes for Top School Teams, Top Girls teams and Best Indian Teams. And of course the chance to experience a fully sponsored trip to India.

To know how it feels to be an onsite finalist at SnackDown, Have a glance at last year’s SnackDown video here- https://www.youtube.com/watch?v=_rsFuDcUC54

The registrations for the online rounds of SnackDown have begun, You can register a team upto 2 or go solo!

To register, go to — https://www.codechef.com/snackdown

If you are a programming enthusiast who likes to spread the love for coding by spreading awareness about competitive programming, join our SnackDown Representative Program — https://www.codechef.com/snackdown/2019/srp#about. The objective of the program is to spread the awareness about SnackDown and competitive programming among students and professionals alike across various institutes/organisations.

Hello CodeForces Community!

We’re excited to announce the July Lunchtime 2018 sponsored by ShareChat. We hope to see you all join us in these 3 intense hours of coding challenges. Plus there are some exciting job and internship opportunities by ShareChat for participants of July Lunchtime. For more details please visit the contest page here: https://www.codechef.com/LTIME62

Joining me on the problem setting panel are:

• Problem Setter: Fekete (Ivan Fekete)
• Problem Tester: mgch (Misha Chorniy)
• Editorialist: likecs (Bhuvnesh Jain)
• Statement Verifier: Xellos (Jakub Safin)
• Russian Translator: Mediocrity (Fedor Korobeinikov)
• Mandarin Translator: huzecong (Hu Zecong)
• Vietnamese Translator: VNOI Team

Contest Details:

Time: 28th July 2018 (1930 hrs — 2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone

Contest link: https://www.codechef.com/LTIME62

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes: Top 10 performers in Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: https://discuss.codechef.com/questions/51999/how-do-i-win-a-codechef-goodie. (For those who have not yet received their previous winning, please send an email to [email protected])

Good Luck! Hope to see you at the contest!

Hello CodeForces Community! We’re excited to announce the June Long Challenge 2018. We hope to see you all join us in these ten intense days of coding challenges. Joining me on the problem setting panel are:

• Problem Tester: mgch (Misha Chorniy)
• Problem Authors: justadlet (Adlet Zeineken), mraron(Noszaly Aron), (Jitender Sheora), (Phuc Hong), Nots0fast (Rehijm Memmedli), teja349 (D Teja Vardhan Reddy), pieguy (David Stolp), TianyiQ (Tianyi Qiu), Barichek (Ihor Barenblat)
• Problem Editorialist: likecs (Bhuvnesh Jain)
• Statement Verifier:Xellos (Jakub Safin)
• Russian Translator: CherryTree (Sergey Kulik)
• Mandarin Translator: huzecong (Hu Zecong)

• Vietnamese Translator: VNOI Team

  Contest Details:

  Time: 1st June 2018 (1500 hrs) to 11th June 2018 (1500 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Contest link: https://www.codechef.com/JUNE18

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes: Top 10 global and top 20 Indian winners get 300 Laddus each, with which the winners can claim cool CodeChef goodies. Know more here: https://discuss.codechef.com/questions/51999/how-do-i-win-a-codechef-goodie (For those who have not yet got their previous winning, please send an email to [email protected]). First to solve each problem individually: 100 laddus (For problems common to both Divisions, only one user will get laddus for that problem).

Good Luck!
Hope to see you participating!!
Happy Programming!!

Hello CodeForces Community!

Greetings from Chef! Close on the heels of an exciting lineup of contests you all enjoyed, here’s more from Chefland to satisfy your coding appetites in April. This time it’s not a quick snack, it’s a full-course meal with ten days prep time!

I would like to invite you to the April Long Challenge 2018 for 10 days of exciting programming challenges. Joining me on the problem setting panel are:

• Problem Setter: (Vaibhav Gupta), bciobanu(Bogdan Ciobanu), chemthan(Trung Nguyen), step_by_step(Stepan Filippov), playing_it_my_way(Varad Kulkarni), vidyut_7(Ashesh Vidyut), usaxena95(Utkarsh Saxena), PraveenDhinwa(Praveen Dhinwa), i_am_groot_(Anuj Maheshwari), (Adlet Zeineken)

• Problem Tester and Admin: mgch(Misha Chorniy)

• Problem Editorialist: vijju123(Abhishek Pandey), (Vaibhav Gupta)

• Statement Verifier: Xellos (Jakub Safin)

• Russian Translator: CherryTree (Sergey Kulik)

• Mandarin Translator: huzecong (Hu Zecong)

• Vietnamese Translator: VNOI Team

Please give your feedback on the problem set in the comments below, after the contest.

Contest Details:

Time: 6th April 2018 (1500 hrs) to 16th April 2018 (1500 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Contest link: https://www.codechef.com/APRIL18

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes: Top 10 global and top 20 Indian winners get 300 Laddus each, with which the winners can claim cool CodeChef goodies. Know more here: https://www.codechef.com/laddu.
(For those who have not yet got their previous winning, please send an email to [email protected])

Also, first to solve each problem individually: 100 laddus (For problems common to both Divisions, only one user will get laddus for that problem).

Good Luck!
Hope to see you participating!!
Happy Programming!!

Hello CodeForces Community! Chef's next contest is just around the corner and I'd like to invite you for the same, the March Lunchtime 2018. Have a helping of Chef's challenges and solve all 6 contest problems to top the charts!

I hope you will join your fellow programmers and enjoy the contest problems. Joining me on the problem setting panel are:

• Problem Setter:mgch (Misha Chorniy)
• Problem Tester: Lewin (Lewin Gan)
• Problem Editorialist: adkroxx (Adarsh kumar)
• Problem Admin: kingofnumbers (Hasan Jaddouh)
• Statement Verifier:Xellos (Jakub Safin)
• Russian Translator: CherryTree (Sergey Kulik)
• Mandarin Translator: huzecong (Hu Zecong)
• Vietnamese Translator: VNOI Team

I hope you will have a great time solving them. Your feedback on the problem set is most welcome in the comments below after the contest.

Contest Details:

Time: 31st March 2018 (1930 hrs — 2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your [timezone]https://www.timeanddate.com/worldclock/fixedtime.html?msg=March+Lunchtime+2018&iso=20180331T1930&p1=44&ah=3.

Contest link: https://www.codechef.com/LTIME58

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes: * Top 10 performers in Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: https://www.codechef.com/laddu.

Hello CodeForces Community!

With the preliminary rounds of IOI fast approaching, it is time to crack your knuckles and start preparing for it. To help you with your preparations, we have September Lunchtime 2016 CodeChef September Lunchtime coming up for you. Set by me and tested by CherryTree (Sergey Kulik) the contest has four brain-teasing problems which will make your weekend thrilling.

Joining me on the problem setting panel are:

• Problem Setter: mgch (Misha Chorniy)
• Problem Tester and Russian Translator: CherryTree (Sergey Kulik)
• Editorialist: pkacprzak (Pawel Kacprzak)
• Mandarin Translator: huzecong (Hu Zecong)
• Vietnamese Translator: VNOI Team
• Contest Admin PraveenDhinwa (Praveen Dhinwa)

Hope you will enjoy solving them. Please give your feedbacks on the problem set in the comments below after the contest.

Please find the rest of the details about the contest below.

Time: 24th September 2016 (1930 hrs) to 24th September 2016 (2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Details: https://www.codechef.com/LTIME40

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes: Top 10 school students each from Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: https://www.codechef.com/laddu. (For those who have not yet got their previous winning, please send an email to [email protected]).

Good Luck! Hope to see you participating!!

Hello CodeForces Community!

The monthly programming action takes the centre stage once again after SnackDown 2016 Finale. I hope you all are ready to get back to your weekly dose of programming. So, let’s start.

I’d like to invite you to the CodeChef July CookOff 2016 CodeChef July Cook-Off. This time, the Cook-Off will happen as per its usual time i.e., on the second last Sunday of the month. Joining me on the problem setting panel are:

• Problem Setter: mgch (Misha Chorniy)

• Problem Tester: karanaggarwal ( Karan Aggarwal)

• Editorialist: pushkarmishra (Pushkar Mishra)

• Russian Translator: CherryTree (Sergey Kulik)

• Mandarin Translator: huzecong (Hu Zecong)

• Vietnamese Translator: VNOI Team

• Contest Admin and Language Verifier: PraveenDhinwa (Praveen Dhinwa)

I hope you will enjoy solving them. Please give your feedback on the problem set in the comments below after the contest. You can find the rest of the details about the contest below.

Time: 24th July 2016 (2130 hrs) to 25th July 2016 (0000 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Details: https://www.codechef.com/COOK72

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes:

• Top 10 performers in Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: https://www.codechef.com/laddu. (For those who have not yet got their previous winning, please send an email to [email protected])

Hello CodeForces Community,

The CodeChef LunchTime programming series in its 33rd edition has a new timing. From now, it will start on the Last Saturday of every month from 7:30 PM, IST to 10:30 PM, IST.

I have set the problems for the first newly scheduled LunchTime and would like to invite you all for the same. The contest takes place at https://www.codechef.com/LTIME33. I am sure this will serve as a good practice for all those aiming for IOI 2016, we have adhered to the syllabus IOI and made the problems accordingly.

Time: 27th February 2016 (1930 hrs) to 27th February 2016 (2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone

Details: https://www.codechef.com/LTIME33

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

• Problem Setter: mgch (Misha Chorniy)
• Editorialist: PraveenDhinwa (Praveen Dhinwa)
• Problem Tester: pushkarmishra (Pushkar Mishra)
• Contest Admin: PraveenDhinwa (Praveen Dhinwa) and pushkarmishra (Pushkar Mishra)
• Russian Translator: CherryTree (Sergey Kulik)
• Mandarin Translator: huzecong (Hu Zecong)
• Vietnamese Translator: VNOI Team
• Language Verifier: rarora7777 (Rahul Arora)

Prizes:

• Top 10 performers in Global and Indian category will win a cool CodeChef T-shirt. (For those who have not yet got their previous winning, please send an email to [email protected])

It promises to deliver on an interesting set of algorithmic problems with something for all. Please feel free to give your feedback on the problem set.

Good Luck! Hope to see you participating!!

Sub: Attention! CodeChef February LunchTime 2016 starts at an unusual timing

Hello Codeforces Community!

CodeChef invites you to participate in CodeChef January Long Challenge at http://www.codechef.com/JAN16. As always, the long contests will start on first Friday of every month and last for 10 days. This ensures that two weekends are covered.

Time: 1st January 2016 to 11th January 2016. Check your timezone.

Details: https://www.codechef.com/JAN16

Registration: Just need to have a CodeChef handle to participate. For all those, who are interested, are requested to register in order to participate.

• Problem Setters: Cenadar (Maksym Bevza), xlk (Ke Bi), Witalia (Vitalii Kozhukhivskyi), abhra73 (Abhra Dasgupta), Antoniuk (Vasya Antoniuk), Berezin (Dmytro Berezin), amitp08 (Amit Pandey), Sereja (Sergey Nagin), PraveenDhinwa (Praveen Dhinwa) and shef_2318 (Pavel Sheftelevich)

• Problem Testers: mgch (Misha Chorniy), Antoniuk (Vasya Antoniuk)

• Contest Admin & Editorialist: PraveenDhinwa (Praveen Dhinwa)

• Editorialist: pushkarmishra (Pushkar Mishra)

• Russian Translator: CherryTree (Sergey Kulik)

• Vietnamese Translator: Team VNOI

• Mandarin Translator: gediiiiiii (Gedi Zheng)

• Language Verifier: RahulArora (Rahul Arora)

Prizes:

For Indians:

1st prize: INR 12000

2nd prize: INR 8000

For Rest of the world:

1st prize: $400

2nd prize: $300

In addition to the above prizes. Top 10 global, Top 20 Indian, Top 5 school (Indian), Top 5 school (Global), Top 3 challenge problem solvers Indian and Global (apart from the winners) get cool CodeChef goodies.

As far as I know JAN16 will be first programming competition in 2016, don't miss it! I hope that everyone who will take part be able to solve all problems :)

Good Luck!

Happy New Year!