Hello Codeforces community!

I am glad to announce that HackerRank 101 Hack 32nd edition will be held on 19th Dec 2015 at 18:00 UTC. You can sign up for the contest here. Though what's priceless is solving interesting problems and the thrill of competition, prizes make the competition fierce. Top 10 performers will get a HackerRank T-shirt.

Problems have been set by shangjingbo and tested by wanbo. The contest will consist of 5 problems with variable scoring distribution. We have tried our best to prepare a nice problem set. Hopefully everyone will enjoy. Also, you'll be able to enjoy the detailed editorials written by the setter.

Good luck and have fun!

Hello CodeForces Community,

I’d like to invite you to CodeChef December Cook-Off at https://www.codechef.com/COOK65.

Time: 20th December 2015 (2130 hrs) to 21st December 2015 (0000 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Details: https://www.codechef.com/COOK65

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 and Russian Translator: mgch (Misha Chorniy)
• Editorialist: pushkarmishra (Pushkar Mishra)
• Problem Tester: shangjingbo (Jingbo Shang)
• Mandarin Translator:: huzecong (Hu Zecong)
• Contest Admin: PraveenDhinwa (Praveen Dhinwa)
• 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 winners@codechef.com)

It promises to deliver on an interesting set of algorithmic problems with something for all.

Good Luck! Hope to see you participating!!

Hello CodeForces Community,

I’d like to invite you to CodeChef October Cook-Off at https://www.codechef.com/COOK63.

Time: 18th October 2015 (2130 hrs) to 19th October 2015 (0000 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Details: https://www.codechef.com/COOK63

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: shangjingbo (Jingbo Shang)
• Russian Translator: CherryTree (Sergey Kulik)
• Editorialist: pushkarmishra (Pushkar Mishra)
• Problem Tester: ftiasch (Xiaoxu Guo)
• Mandarin Translator:: huzecong (Hu Zecong)
• Contest Admin: PraveenDhinwa (Praveen Dhinwa)
• 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 winners@codechef.com)

• Top 75 Indian performers will be provided with a reimbursement (for travel and registration) of upto INR 1500 for ACM ICPC 2015 regionals.

It promises to deliver on an interesting set of algorithmic problems with something for all.

Good Luck! Hope to see you participating!!

We hope you participated and enjoyed the changes made to monthly Long Contests.

From now on, we will be having the problem statements available in Mandarin Chinese and Russian as well

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.

Continuing from there, we bring you the CodeChef July Challenge 2014 . The July 2014 Algorithm Challenge is taking place on http://www.codechef.com/JULY14.

Here are the details:
Date: 4th July 2014 to 14th July 2014
Duration: 10 days
Problems: 9 binary problems of varying difficulty levels + 1 challenge problem.

Problem Setters: - Dmytro Berezin (Berezin), - Gerald Agapov (gerald) - Lalit Kundu (darkshadows), - Sergey Nagin (Sereja), - Vitalij Kozhukhivskij (Witalia), - Vitaliy Herasymiv (witua), - Vivek Hamirwasia (viv001),

Problem Testers: - Gerald Agapov (gerald) - Jingbo Shang(shangjingbo)

Editorialist: - Devendra Agarwal (devuy11243)

Mandarin Translator: - Kojima Minako (xiaodao) - Gedi Zheng (stzgd)

Russian Translator: - Sergey Kulik (CherryTree),

It promises to deliver on an interesting set of algorithmic problems with prizes up for grabs.

The contest is open for all and those, who are interested, are requested to register in order to participate.

Check out the local time in your City/Time Zone here. Do share your feedback on what you feel about the new long contest format at feedback@codechef.com

Good Luck! Hope to see you participating.