Fellow programmers!
This is to inform you that we have secured the cluster judging option on CodeChef; we have always received feedback about the judge’s delayed response-time, and cluster judging will now double the judge’s response speed, such that you can forget the slow judge of yesteryear. You can experience it first-hand at all our practice sections.
We’re encouraging any feedback you can give us regarding anomalies that you may come across while submitting your solutions, and we’ll fix it right away – Once we have ensured our cluster judging system is flawless, we’ll be activating it for our contests.
Therefore, if we can work together on this and work fast enough, we can employ cluster judging for this Sunday’s Cook-off.
So, let’s make this happen!
Bon soir(!) my algorithm-toting friends.
As you may well know, the September Cook-off goes live this Sunday, 18th September 2011.
What you may NOT know, is that this is the last short contest we’re conducting before the online round of the Amritapuri ACM-ICPC regionals 2011, which takes place on the 16th of October.
Grab the opportunity to gear up for it with the September CookOff, our warm up to the Amritapuri regionals. You’re going to need all the practice you can get!
The Cook-off will commence at 2130 hrs, IST. As usual, submission-time ends with the day. Don’t forget to bring your A-game!
Wondering what the ACM ICPC regionals are?
They are the qualifying round to the olympics of all programming competitions, the ACM ICPC World Finals, taking place in Warsaw, Poland this time! Find out more here.
Register for the Amritapuri regionals here.
Greetings CodeCheffers,
The Challenge for September 2011 has concluded, and once again, there was no exclusive winner on the Indian side of things. On the global side, however, we saw a clean victory, of which we shall inform you in just a few lines. 
Before moving on though, I’d like to mention that this month’s participation very nearly equalled the highest ever participation for a long contest; I am sincerely pleased to see so many people constructively using their free time.
Another unusual highlight was the single successful submission for the challenge problem TILT… what happened guys? The problem setter himself was surprised.
A massive under-10 tie saw the 9th rank cover nearly 140 people! Talk about neck-and-neck…
Now, for the honorary problem setters and tester, whom all of us here are deeply ingratiated to:
David Stolp, Gennady Korotkevitch, Saransh Bansal, Imran Sunny and Vamsi Kavala prepared the problems while Shilp Gupta sampled them before they were served to you.
Let’s look at some Statistics and then move on to see the final winners list.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 11 days | 711 | 7845 | 447 |
| Country | Total Participants | Average Score per User |
| IN | 531 | 0.89 |
| Rest of World | 180 | 1.48 |
Winners list for the September 2011 Contest:
India:
01. Balakrishnan Varadarajan (winner of prize money Rs. 5000)
01. rudradevbasak (winner of prize money Rs. 5000)
01. Varun Jalan (winner of prize money Rs. 5000)
01. utkarsh lath (winner of prize money Rs. 5000)
05. mosquito
05. Pratik Tandel
05. sharatiitr
05. vivekitbhu
Global:
01. ACRush (winner of prize money $400)
02. ddr (winner of prize money $60)
02. hanshuai (winner of prize money $60)
02. lutyj (winner of prize money $60)
02. Oleg (winner of prize money $60)
02. s.max (winner of prize money $60)
07. Anton Lunyov
07. iscsi
07. Tony Liu
Congratulations to all, and a special mention to ACRush for being the only one to solve David Stolp’s TILT.
If you haven’t yet checked out the editorials of the problems to this month’s contest please do so here.
We are running a 2.5 hours Cook-Off that is scheduled for 18th September 2011 at 21:30 IST
If there is anything that you would like to let us know then do comment on this blog post or send in an email to feedback@codechef.com
Cheers,
Adarsh Loyal.
Welcome to the September Programmer of the Month edition!
This month we have with us Dmytro Dzhulgakov who is our Programmer of the Month. Dmytro has been part of CodeChef since February 2010 and is ranked 48th in the long contest and 3rd in the short contest format. We hope to see this bright young mind achieve his dreams. On behalf of the CodeChef team, we wish him good luck for the future. Now let’s see what Dmytro has to tell us about himself.
Name: Dmytro Dzhulgakov
Age: 21
Institute: National Technical University “Kharkov Polytechnic Institute”
User id: dzhulgakov
Brief introduction about yourself:
I live in Kharkiv, one of the main educational and scientific centers in Ukraine. Currently I’m studying towards Master degree in Applied Mathematics at National Technical University “Kharkiv Polytechnic Institute”. This degree offers a great mix of math, algorithms theory, and practical programming – so it suits me perfectly. Last year I’ve done two internships in Google and Facebook.
How/When did you start programming?
I was obsessed with Lego as a child – I think that’s probably how I became interested in engineering and computers. I wrote my first program in Assembler at the age of 8 for the Intel 8080 chip. Then I switched to Pascal and Delphi and began exploring the beautiful world of algorithms. I started picking up C++ when I was 16. Since then I’ve been participating in dozens of programming competitions. Also I had an opportunity to take part in industrial computer software development. By the way, one of the products I took part in is running at Kaiga atomic power station
What do you do when you’re not programming?
I travel and photograph, solve math puzzles and wonder what I’ll code next.
What do you like most about CodeChef?
Long contests format that offer really tough problems, problems that hard are not usually proposed on traditional contests. And, of course, CodeChef is a great opportunity to win a lot of T-shirts and stop buying them on my own.
How many hours a day do you program?
It’s really unpredictable and can vary in range 0-24
If you could eat dinner with any famous person (past or present), who would it be and what dish would you have?
I don’t have any strong preference, but it would be really interesting to meet Edsger W. Dijkstra and Richard Stallman.
What is the secret to being a good programmer?
Good math background and a lot of hard work. But the key thing is to be really passionate about what you are doing.
What are your plans for the future?
I’m completing my Masters soon and I’m going to work for Facebook afterwards.
Cheers!
Team CodeChef
Hi Guys,
The August 2011 Cook-off has ended. A well balanced problem set, I hope you’ll enjoyed as much as we did organizing this contest.
This contest was made possible by our problem setter and tester Anil Kishore and Harsha S respectively. And they did an awesome job. Thank you so much for the fantastic job in putting together this problem set!
Here are the top 10 best performers of the August 2011 Cook-Off:
01. laycurse
02. allin
03. pieguy
04. mikhailOK
05. dzhulgakov
06. ilyakor
07. sdya
08. Romka
09. subscriber
10. EgorK
Take a look at the contest rankings here.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 2.5 hours | 474 | 2168 | 378 |
| Country | Total Participants |
| IN | 313 |
| Rest of World | 290 |
Congratulations guys! We look forward to seeing all of you participating in the September 2011 Challenge that begins on 1st September, 2011.
Check out the contest problem editorials here.
If there is anything you would like to let us know regarding this contest then do let us know by either commenting below this blog post or by sending in an email to feedback@codechef.com.Cheers,
Harsh Munshaw
(Team CodeChef)
P.S. Winners of the contest will be contacted this week.
Hi CodeCheffers,
The August Challenge 2011 is over!
The August contest has got quite a few winners at the top this time. It seems the winners are trying to prove a point that they want to be Number 1 and will not accept the 2nd spot this month 
. Anyways back to some stats, the Global rank saw 7 participants tied at 1st place and in the Indian winners, 3 people tied at 1st place.
Overall a good contest, a fair bit of difficulty this month with only 2 problems being easily solved.
Before we move on to the next section of the blog post, a special mention of the people who made this contest possible:
Vishal Anand, Ivan Mistreanu, Snigdha Chandan, Abdullah Mahmud and Anton Lunyov were the problem setters while Shilp Gupta was the diligent tester of this month’s contest.
Lets look at some Statistics and then move on to see the final winners list.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 11 days | 629 | 6873 | 364 |
| Country | Total Participants | Average Score per User |
| IN | 425 | 0.60 |
| Rest of World | 204 | 1.20 |
Winners list for the August 2011 Contest:
India:
01. Pratik Tandel (winner of prize money Rs. 6666)
01. rudradevbasak (winner of prize money Rs. 6666)
01. Varun Jalan (winner of prize money Rs. 6666)
04. suhash
05. Pradeep George Mathias
06. nikhil
07. gultus
08. calc_saransh
09. dudechandan123
10. NAMIT .D. SHETTY
11. vivekitbhu
12. prashantc29
13. jayesh02
14. Paresh Verma
15. Nilesh Hamane
16. mendax
17. deepangupta91
18. sanjay.iitg
19. bagrawal
20. theicebreaker
Global:
01. ACRush (winner of prize money $100)
01. gennady.korotkevich (winner of prize money $100)
01. meret (winner of prize money $100)
01. mikhailOK (winner of prize money $100)
01. Oleg (winner of prize money $100)
01. snapdragon (winner of prize money $100)
01. Tomasz Czajka (winner of prize money $100)
08. zhujiaye
09. qwaker00
10. wcwswswws
Congratulations to all.
If you haven’t yet checked out the editorials of the problems to this month’s contest please do so here.
We are running a 2.5 hours Cook-Off that is scheduled for 21th August 2011 at 21:30 IST
If there is anything that you would like to let us know then do comment on this blog post or send in an email to feedback@codechef.com
Cheers,
Harsh Munshaw
Hi Guys,
The July 2011 Cook-off has ended. This contest saw an unsolved problem after quite a while, the remaining problems seemed easy with over 150 users who solved 2 problems at least.
This contest was made possible by our problem setter and tester Shilp Gupta and Anton Lunyov respectively. And they did an awesome job. Thank you so much for the fantastic job in putting together this problem set!
Here are the top 10 best performers of the July 2011 Cook-Off:
01. dzhulgakov
02. laycurse
03. al13n
04. damians
05. volkhin
06. cgy4ever
07. rasifiel
08. EgorK
09. sobols
10. smylic
Take a look at the contest rankings here.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 2.5 hours | 341 | 1484 | 279 |
| Country | Total Participants |
| IN | 220 |
| Rest of World | 121 |
Congratulations guys! We look forward to seeing all of you participating in the August 2011 Challenge that begins on 1st August, 2011.
Check out the contest problem editorials here.
If there is anything you would like to let us know regarding this contest then do let us know by either commenting below this blog post or by sending in an email to feedback@codechef.com.Cheers,
Harsh Munshaw
(Team CodeChef)
P.S. Winners of the contest will be contacted this week.
Hi CodeCheffers,
The July Challenge 2011 is over!
The July Contest saw some big names battle it out at the top spots. We saw some last minute changes in Indian Ranking from Ravi Kiran who managed to bag the top spot from India and Tomek Czajka who bagged the Global spot. Overall a good contest, a fair bit of difficulty mixed with some easy problems gave this problem set a good balance.
Before we move on to the next section of the blog post, a special mention of the people who made this contest possible:
David Stolp, Ivan Mistreanu, Ashwin Jain, Ashar Fuadi and Gennady were the problem setters while Shilp Gupta was the diligent tester of this month’s contest.
Lets look at some Statistics and then move on to see the final winners list.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 11 days | 460 | 8189 | 327 |
| Country | Total Participants | Average Score per User |
| IN | 295 | 1.08 |
| Rest of World | 165 | 1.89 |
Winners list for the July 2011 Contest:
India:
01. Pratik Tandel (winner of prize money Rs. 12000)
02. Varun Jalan (winner of prize money Rs. 8000)
03. Prunthaban K
04. Archit Karandikar
05. sharatiitr
06. root5
07. flying_ant
08. mkagenius
09. jayesh02
10. deepangupta91
11. mukulgupta
12. sunny816.iitr
13. Praveen Kumar
14. vamsi_kavala
15. mendax
16. FrostByte
17. pikku
18. Amit Karmakar
Global:
01. Tomasz Czajka (winner of prize money $400)
02. hanshuai (winner of prize money $300)
03. chmel_tolstiy
04. Oleg
05. pperm
06. cgy4ever
07. s.max
08. tanzaku
09. xxjx
10. EgorK
Congratulations to all.
If you haven’t yet checked out the editorials of the problems to this month’s contest please do so here.
We are running a 2.5 hours Cook-Off that is scheduled for 24th July 2011 at 21:30 IST
If there is anything that you would like to let us know then do comment on this blog post or send in an email to feedback@codechef.com
Cheers,
Harsh Munshaw
Welcome to the July Programmer of the Month edition!
This month we have with us Gunjan Sharma who is our Programmer of the Month. Gunjan has been part of CodeChef since November 2009 and is ranked 35th in the long contest and 84th in the short contest format. We hope to see this bright young mind achieve his dreams. On behalf of the CodeChef team, we wish him good luck for the future. Now let’s see what Gunjan has to tell us about himself.
Name: Gunjan Sharma
Age: 21
Institute: Indian Institute of Technology, Roorkee
Company: Google
User id: shadow
Brief introduction about yourself:
Recently I have finished my bachelors from IIT Roorkee. I got placed in Google. Now I look forward to join Google soon. I have always had interest in Maths and puzzles. And I am quite passionate about programming.
How/When did you start programming?
I started programming only after I came in 2nd year. And it was on the codechef platform that I wrote my first program. The credit goes to my seniors for “how” I started programming.
What do you do when you’re not programming?
I usually watch movies and sitcoms.
What do you like most about CodeChef?
First of all the purpose that it is serving-”Bring out the best of Indian Programmers”. And also I like the codechef’s Interface. Another good thing about codechef is its long contest which gives you enough time to learn and implement new algorithms, and the challenge problems are unique in there own way
How many hours a day do you program?
Depends, there is no fixed time but I love coding whenever possible it always feels good to code.
If you could eat dinner with any famous person (past or present), who would it be and what dish would you have?
I would like to go out for dinner with Priyanka Chopra 
and whatever she likes should be good for me 
What is the secret to being a good programmer?
I think to learn all what u can whenever u get a chance. Also keep participating in any kind of programming competition as u never know what new things u might learn.
What are your plans for the future?
Currently I look forward to join Google and still keep participating in the programming competitions
Other than this I would like to say all the very best to the Codechef team and hope that u grow exponentially
Cheers!
Team CodeChef
Hi Guys,
gennady.korotkevich clinches it once again with his last minute submission to beat tanaeem and increase the gap at the top of our short contest ratings!
The June 2011 Cook-off has ended. A well balanced problem (well slightly mathematical ) set, we did not see any participant solve all 5 problems though.
This contest was made possible by our problem setter and tester Anton Lunyov and Rajiv Kumar respectively. And they did an awesome job. Thank you so much for the fantastic job in putting together this problem set!
Here are the top 10 best performers of the June 2011 Cook-Off:
01. gennady.korotkevich
02. tanaeem
03. Romka
04. maksay
05. pieguy
06. KADR
07. xcwgf666
08. gerald
09. Ra16bit
10. mmirzayanov
Take a look at the contest rankings here.
Contest Statistics:
| Length of Contest | Unique Participants | Total Number of Submissions | User who have solved at least one problem |
| 2.5 hours | 413 | 2302 | 247 |
| Country | Total Participants |
| IN | 171 |
| Rest of World | 117 |
Congratulations guys! We look forward to seeing all of you participating in the July 2011 Challenge that begins on 1st July, 2011.
Check out the contest problem editorials here.
If there is anything you would like to let us know regarding this contest then do let us know by either commenting below this blog post or by sending in an email to feedback@codechef.com.Cheers,
Harsh Munshaw
(Team CodeChef)
P.S. Winners of the contest will be contacted this week.
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