When we sat for June Challenge 2014, we had no idea what is waiting for us at the other end. We were optimistic, like always, and were hoping for a good contest, with some smiling faces in the end. However, as soon as we learnt that the contest is starting with eight problems, the number of smiling faces that we were expecting reduced. Now, all we wanted was a good, fun filled ten days of healthy competitive programming. And thankfully, we got that, actually we got more than we wanted.
The June Challenge 2014 was set by the experienced problem setting panel comprising Dmytro Berezin, Gedi Zheng, Istvan Nagy, Lalit Kundu, Sergey Kulik, Sergey Nagin, Vitaliy Herasymiv, and Vivek Hamirwasia. The problems were tested contest-ready by Shiplu Hawlader, who ensured that the problem set is well balanced to everybody’s skill level. The explanatory editorials for the problems came from Praveen Dhinwa, and we are sure by now you would have tasted them all. The spices in the form of Mandarin & Russian translations came from Minako Kojima & Gedi Zheng, and Sergey Kulik respectively. When you have such decorated problem-setting panel, a dazzling contest becomes obvious. And we were expectant of that too.
The June challenge might have started with eight problems in the offering, and they all were greeted graciously. The initial bombardment of submission was on CHEFZOT, which became the first problem to have an AC by dream_71 in the sixth minute of the contest. And after that, the submissions just kept on coming. Everyone wanted a piece of Chef and Subarray, and almost everybody got that. While the participants were having fun with Guessing Game, Forgot Password, Chef and Digit Jumps, and Maxim and Progressions our problem setters were busy garnishing the ninth & tenth problems. And soon the Little Elephant and Blocks and DARTS501 were on the table, ready to be munched on.
With all the ten problems in the offering, the game was full on, with everybody firing all their cylinders to top the tables. While the major fight in the Indian table was between triveni, akash4983, and anudeep2011, the international table was all about the triangular battle between mugurelionut, sokian, & kevinsogo. The view at the top of the table in the final days of the contest was rather usual, with not many unexpected names. However, triveni was one surprise package in the contest, and certainly someone to look forward to in the near future. To know who stood where when the contest ended on 16th June 2014, let us take you through the rank tables.
We start with the non-Indian top 10:
The Indian top 20:
We now move on to our special achievers category, and we start with the users who had highest scores for challenge problem DARTS501:
First, the non-Indian top 3:
Now our Indian winners:
Now it is turn to meet our young geniuses from schools.
First, the non-Indians top 5 schools students:
Now the Indian top 5 school students:
Give a big round of applause for all our June Challenge stars.
Now the final stats for the contest:
Those stats made the June Challenge 2014 the biggest long contest ever, we have had, and all thanks to you guys. You have always been a driving force for us, and will continue to remain so.
With that, we conclude this blog post. We will come back with more stories from the contest. But if you have any story of yours, or a feedback for us feel free to send them to us at: email@example.com
You can also call us at: 022 – 30797709
That will be all folks.
See you at the contests.
With every LunchTime contest, we are seeing new names announcing their arrival at the big stage. Some of them have established themselves as a force to be reckoned with in the world-programming circle, while some others are in the process of paving their way to glory. Moreover, it gives us immense pleasure to have been a part of this wonderful journey that we all have embarked upon. There is still a long way to go, and we will come across many new names, many new champions along the way. And we will celebrate them all with the same joy & fervor. For now, it is time to relive the course of May LunchTime 2014.
The May LunchTime 2014 like all other LunchTime contests we have had started on a pleasing note, with not much rush. However, the urgency was there among the participants to emerge atop the rank list. And the fight was on right from the beginning. The first one to get the green tick of happiness was yutaka1999, Kaisei Junior High School and Senior High School, Japan who cracked the APPROX2 problem with his first submission in the seventh minute of the contest. However, after the initial bang, he had to wait for a good half an hour to see another of those green ticks.
Unlike yutaka1999, kaizero of Seoul Science High School, South Korea was not so lucky with his first submission and got his first accepted submission in the fifteenth minute on DIVSUBS. Now, he might have been a late bloomer in the contest, but after solving the first problem, kaizero never looked back and in next 30 minutes, he cracked the APPROX2 & BNGAME as well. With three problems in his kitty in the first hour of the contest, there were not many doubting kaizero as the winner for the May LunchTime. However, those on the rank tables had different thoughts.
Inside the first hour of the contest, we saw nihalpi1 of Late P.B. Jog Junior College, Pune closing up on kaizero and we got right behind him. Like we do for all our participants. Soon, yutaka1999 & zeulb overtook nihalpi1. Moreover, after the first hour of the contest it seemed as the final race to the top. However, kaizero did not made life easy for them in the fast lane and firmly held on to his position atop the rank table. Thus claimed his first ever LunchTime. Congratulations to him on his blistering performance. And to see where his counterparts stood on the rank tables, let us have a tour of the final rank list of our May LunchTime 2014.
We will start with the non-Indian top 10:
Now the Indian top 10:
Congratulations to all the winners.
Here are the final stats of the contest:
Both the rank tables, while had some familiar names, it was the new names that brought the real joy for us. kaizero, our winner was taking part only in his second LunchTime contest, and to have him sitting on top of the rank table will be an encouragement to many new comers. We are sure that the coming LunchTime contests will see many new names and many new winners.
With that, we put an end to the May LunchTime 2014 tale. We hope you all loved it, as much you loved and enjoyed the contest. However, if you still have any tales to tell or quarrels to quarrel, we would love to hear them all. So shoot them all at: firstname.lastname@example.org.
That will be all folks.
See you at the contests.
Bad days indeed! One more CookOff and one more letting you all down. This time we were prepared. We had learnt from our mistakes from the last CookOff and we knew what had to be done (or not done).
The contest started well. It was the contest, which bypassed all our expectations in terms of participation. Moreover, not only was the number of participants huge, it also brought in all the big names into it. And boy, it was a smooth start. In the first half an hour (which is our most testing time) into the contest we had equalled the previous best participation and without any glitch. We were living a dream.
Not for long! Suddenly the submission queue started going up after almost 45 minutes into the contest. And it never quite came down. We had to stop the contest and let the judge work in isolation. The ever robust and dependable SPOJ judge today gave in. We tried all that we could. Also added more servers, but the queue that had accumulated to 1300 pending submissions took close to 15 minutes to reduce.
It happened due to a couple of reasons.
1. The number of submissions were very very high.
2. More importantly, the number of test files for two problems were very high in number (close to 20). These problems had one test case per test file and that is a non optimal configuration for the SPOJ judge. Each test file spawns a new process for the judge and close to 20 test files for each submission in a short contest turned out to be a disaster.
There is also some unseen benefit at the end of the dark day. We have seen by far the highest participation (close to 2430 users making a submission versus 1774 being the previous highest in any contest). And the number of submissions being 11500 plus.
The final stats of the contest are here:
Total Users: 2437
Total Submissions: 11635
Number of distinct users with correct submissions: 2022
Total users from India: 2113
Total users not from India: 324
We are sad and we are sorry. How much cannot be expressed. But we are not giving up. We promise that the next CookOff will be without any glitch and will be a good one.
Cook-Offs are the real test of fortitude, of a programmer. This, because it does not give you long time to plan your move, and by the time you plan your move, your counterparts would have gone far beyond your reach. You need to be quick, and you need to be precise. This miraculous display of speed and accuracy is what makes them such a special occasion for the participants & for us. We have seen some thrilling Cook-Offs in the past, and the May Cook-Off 2014 certainly can be placed among them.
Before we proceed with the blog post & tell you how the contest was, let us thank the individuals responsible for it. The celebrated problem setting panel for the May Cook-Off 2014 featured names, which when you see them, you know an excellent contest is cooking up. The problem set came from the 2014 ACM ICPC world finalist Anudeep Nekkanti, which on its own was a highlight of the contest. Add to that, tester & Russian translator Gerald Agapov, in company with editorialist Praveen Dhinwa and you have the recipe of a contest of highest order. The Mandarin flavor of the problem set came from the pervasive Minako Kojima and Gedi Zheng. Thank you guys, for always being there for us all and delivering such splendid contests, one after another.
The May Cook-Off showed sparks of a great contest right from the first minute, as Gennady Korotkevich cracked ANUUND in his first attempt, in the first minute of the contest. This exemplary display of speed and accuracy, made it clear to all the participants that they have to be on their toes if they have to be any competition to him. This was a true test of talent and pedigree for many claimants of the throne. With the likes of Myongsu Cha, Andy Y.F. Huang, & Kazuhiro Hosaka on the rank tables, it certainly was never going to be a cakewalk for the Cook-Off-pro Gennady as well. Or so we thought. As it turns out, it actually was a cakewalk for Gennady, as it took him only six submissions to crack the five problems and seal the victory. Remember we talked about pace & precision, this exactly is what we were talking about.
While the other participants were busy piling up submissions on Ups and Downs, or trying hard to crack Build the Tree. Gennady was comfortably sitting atop the rank table, may be with a grin. Even the juggernauts like uwi, mugurelionut, ballon_ziq, Fdg, & many others had a tough time cracking all the problems. So, we were not surprised to see the low submission count and were pleased with the outcome on the rank tables.
While the non-Indian rank table had some familiar names going at each other, the Indian rank table was no different either. We had balajiganapath, the popular djdolls, smithinsu, xorfire & many others fighting it out for the top spot in the Indian table.
Let us take tour-de-rank-tables, to meet our winners and know who stood where when the clock struck 12.
We start with the non-Indian rank table:
Now the Indian rank table:
Congratulations to all the winners.
Now, here are the final stats of the contest:
That sums up the May Cook-Off 2014. The contest was a display of some fine artisanship from both, problem setting panel and participants. We hope you enjoyed every bit of it, as we did. To understand the best approach towards cracking those problems & many more to come, we suggest, you go through the editorials of the contest and try them once again in practice section.
With that we draw curtains on the May Cook-off 2014 and move towards yet another delayed blog post for May LunchTime 2014. It was our anniversary LunchTime, so we try and not to delay it any further and will come back soon with all the celebratory details.
Till next time, enjoy the beautiful monsoon around, and send us all your love, feedback, or your any monsoon trip you are planning at email@example.com. We would love to join you. You can also ring us at (022) – 30797709 (On weekdays from 11:00 am to 8:00 pm)
Long Challenges are special. They have always been like that. To us and we are sure to many of you. And we all have our own sweet reasons for that. If you are a beginner, you will cherish them for all the learning that you get out of them, while if you are a pro, it gives you enough time to polish, plan, and present your best move. Whichever side of spectrum you are in, we love seeing you all fight it out during the ten days of our Long Challenges.
With all that, our May Challenge 2014 was a special one for one more reason. It was the first instance when a premier institute in Indian had introduced CodeChef in their admission curriculum. Indraprastha Institute of Information Technology (IIIT-Delhi) in one of its kind move required the M. Tech applicants to take part in our May Challenge 2014. The entire details of the program can be read here. We thank the management of IIITD and hope the applicants had a great time participating in the contest.
Now, let us have a tour-de-May Challenge 2014. The post has already been delayed for quite a long time, so, without further adieu we will try to cover as many highlights of those ten days in as few words as possible.
The May Challenge started on a pleasing note with two accepted submissions inside the first five minutes of the contest. Both were on OJUMPS, which turned out to be the easiest problem and received around 4.5k submissions during the course of the competition. Newbies making their first submission in the contest enjoyed the easier problems in the first half of the contest, which is always a great sign. Problems that saw maximum submissions during the contest were Stone, Compilers and parsers, and Chef and Strange Matrix. We hope you enjoyed them too.
After the easy first half, the race to the top of the rank table got serious with avolchek and djdolls making it tough for their rivals to dethrone them. And after ruling the rank tables in the first half of the contest, this was expected of them. However, it was not a smooth sail even for them. They too had a tough time solving the mystery of Sereja and Subsegment Increasings. And to add to their woes there was The Malaysian Flight Search. And while djdolls successfully defended his rein atop the rank tables, avolchek fell over the precipice of aawisong & mugurelionut ending up at third place in the contest. However, in the end, it was beautiful last leg of the contest to watch. And to know who stood were in the rank tables. Let us take you through them.
We will start with the non-Indian top ten:
Now, the Indian top twenty:
We now move on to our special achievers category.
And we start with the top three Indians with highest scores in challenge problem:
The non-Indian top three:
Now let us meet our little geniuses from schools.
Firstly, the non-Indian top five:
And our Indian top five;
Congratulations to all you brilliant minds. We hope you enjoyed the contest.
All those names in the rank tables made their way through a thick galore of participants from all quarters of the globe. It is worth mentioning that the May Challenge 2014 saw the highest number of participation in any our Long Challenges. And to give you a clear perspective here are the final stats of the contest:
With that whooping figures and plenty of M. Tech aspirants starting their programming journey in the new academic session, the May Challenge 2014 concluded. And left behind so many fond memories to cherish for us all in the coming time. We hope you too have a story or two to share about the May Challenge, and we would love to hear them. So, if you want you can share them with us at firstname.lastname@example.org.
With that, let us bring curtains down on the May Challenge 2014. However, not before we take you to the editorials for the May Challenge 2014. Enjoy the knowledge-filled editorials and sharpen you programming skills for the coming contests.
That is all from CodeChef’s kitchen. Send us your queries & quarrels, while we prepare the next blog post, the May Cook-off 2014.
Till then, adios people.
See you at the contests.