2 min read. The onus lies with them to prove their innocence. Problem statement understanding 2. “If someone cheats today, his rating will not be dropped for years?? Meanwhile, the problem with most submissions was Equal Average, with 725 players sending in answers. [Official] June Long Challenge 2020 - Post-contest streaming - Session 2 announcement Know more here. what is Moss % match required to get caught in plagarism. If found guilty, we drop their ratings by 275 points. 10 Likes. What sets the passionate programmers apart from the ones who resort to plagiarism in coding competitions? This can even be more than the number of MOSS cases and would involve many complications. Breaking Records And Making Impact – July Lunchtime 2020 Was A Buzzing Affair. For future contests, we will continue to punish users engaging in plagiarism with a 275 point rating drop. Today we have taken the liberty of compiling all the exciting parts of the August challenges of 2019 and 2020. POSITIVE AND Codechef October Challenge 2020 solution and explanation. Bebras Challenge | A Fun Way To Challenge Your…, The November Cook-Off 2020 | Kevin Sun Clinches Gold. If they reply and we are convinced that they were wrongly accused, their disqualification is revoked. Today we have taken the liberty of compiling all the exciting parts of the August challenges of 2019 and 2020. November LunchTime 2020 | Tourist At The Top Again. We Expanded Our Kitchen With A New YouTube Channel! Out of the 50 players that attempted to solve Safety in Treeland, all returned home empty-handed. When I mentioned publishing similarity scores, I was talking about a system similar to CSGO Overwatch (came across this idea in ‘Discuss’). Over here, Smallest KMP got the most submissions at 124150, whereas Chef Wars – Return of the Jedi got the most successful submissions at 28768. The opposite of Smallest KMP was ANTS (Challenge), as this problem got a meager 1025 submissions, from which only 32 proved to be accurate. There are several cases that are false positives due to various reasons such as similar (or same) code template, codes taken from an online source (ex geeksforgeeks, cp-algorithms) that were published before the contest started, short codes, similar way of writing codes, etc. In Division One, Alien Invasion stole the spot for most submissions at 3375, and Game on a Strip got the most successful submissions at 773. However, we want to assure you that it was not that we have been casual about this. if number is in form of 2 than it will never possible to arrange for example . Really, it takes 2 years to drop ratings? October 30, 2020 Basically, you set a threshold of experience (say 2years on CC and 1800+ rating, or some other criteria) and call some users as ‘trusted’. The August Cook-Off 2019 was something straight out of a movie. Division Two was just as hard, as even here, we had an unsolvable problem. Posted by pakenney38 on Fri, 19 Jun 2020 04:20:58 +0200 for DSA Certification. The Moss % match should not be mentioned as this would lead to plagiarizers finding the way out to check for the code percentage from the source that they are copying. Not an easy number to weed out plagiarism from, but we do try our best. The August Long Challenge 2020 was every bit as fast-paced and thrilling as the 2019 version. The penalisation for the contests after FEB20 will be done in the coming months. This rewind certainly helped all of us reminisce about the old times, and we hope this blog helped you refresh your memory as well. Then, we manually look at those to identify the right parameters to find similar-looking solutions. We believe it is the love for programming. The monthly contests are always an action-packed deal. The problem that received the most submissions in Division One was Guddu and His Mother with a grand total of 5,300 submissions. August LunchTime 2020 had us hooked to our screens throughout the three hours. The problem that turned out to be the player’s worst nightmare was Equal Average, as only five players managed to crack the code. It got 900 submissions, but only 20 out of these were accepted. The participants once again had eight problems to wade through. Codechef September Long Challenge Solutions Overview. Explanation-condition for =>-1. Along with this, we will also be banning users who are caught plagiarising three times, with the count starting from AUG20. But over the last many months, we have had a significantly larger number of cases of plagiarism, partly because the number of participants has increased significantly and partly because of our inaction at a particular penalisation step. programming codechef codechef-solutions lunchtime codechef-long codechef-long-challenge codechef-competition may-2020 programming … ... CodeChef is a product of this love, and the collective sentiment of the community has made the platform what it is today. Over in Division Two Game on a Strip got the most submissions as 25600 players attempted to solve it. We’ve had plagiarisers since almost the beginning, but we started taking measures against them only after a few years. The August LunchTime 2019 was an absolute knock-out. Hi, Rathi_22. looolchef. Both the Divisions were assigned five problems each. This weekend was an exciting affair for everyone involved in the November Cook-Off. CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests.At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month. → Top rated # User Rating; 1: U m_nik: 3459: 2: t ourist: 3438: 3: m aroonrk: 3359: 4: e cnerwala: 3347: 5: B enq: 3317: 6: k sun48: 3309: 7 We want to reiterate that while taking reference from study materials and solutions to solve problems is acceptable, ripping off someone else’s solutions isn’t in the best spirits of the competition. The August Long Challenge 2019 began on the second and lasted till the twelfth. CodeChef - A Platform for Aspiring Programmers. Well, you don’t need to prepare or strategise for long contests, as the time given to you is enough to learn and research. Division One was hard at work, and the problem with the most submissions was Chef and Wedding Arrangements at 8600. Out of the fifty players that sent submissions for this problem, only three claimed bragging rights. This time competition was a bit steeper, as the players were given six problems. ... 90,000 submissions while a long challenge gets about 5-6 lakhs. Division Two’s favorite problem turned out to be Eidi Gift. Meanwhile, the crowd favorite problem in Division Two was Football, which received a stunning 19,250 successful submissions. The latest ones are on Sep 12, 2020 We were all in awe of the August Cook-Off 2020. We want to inform the entire community that we are currently in the process of dropping ratings for all users who have been found to have plagiarized in any contest between [AUG18] and [FEB20]. Important Links of our resources & information -, Prepare With tough problems and tougher competition, read on to relive that electric vibe. The idea here is that this will enable you guys to outsource a part of the work to users who volunteer to fight against plagiarism, without your team personally having to go through all the cases. With Gennady Korotkovich triumphing over Kevin Sun in a close battle and... tl;dr: Bebras Challenge is for school students only. New Year, New Playing Field – Let’s Welcome CodeChef…. The Indian Computing Olympiad 2021 Registrations Are Now Open! You can get the best discount of up to 50% off. For the understanding of the community, these are the steps that we follow –. - Used to solve tons of algorithmic and mathematical problems but now working of solutions of real world problems. Both the Divisions had five problems each. What sets the passionate programmers apart from the ones who resort to plagiarism in coding competitions? We’re halfway through the year and its time for our sixth Long Challenge of the year 2020. It Ideally doesn’t take this long to drop ratings, and that’s the reason why we are apologising. The whole process takes a tremendous amount of our time, and we have tried to be as fair as we can be. The spot for the most solved problem went to Mode of Frequencies, as it received 6540 accurate submissions. To begin with, the current team which handles this can establish themselves as trusted users and incentivize more people to join by rewarding users with some Laddus every time the verdict they give is deemed correct. Even if we publish the similarity scores, there would simply be too many requests. A typical short contest these days gets about 50,000 – 90,000 submissions while a long challenge gets about 5-6 lakhs. The Lively Long Challenges. Codechef June Challenge 2020. Players Who Put Up Stunning Performances Both The Years. CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests.At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month. Codechef September Long Challenge Solutions can offer you many choices to save money thanks to 23 active results. This contest was one of the rare ones where we got to see a problem with zero accurate submissions. And hence, while most of the above steps are being implemented, we have not been able to execute the last step from the month of August 2018. We understand that this has encouraged many more participants to take the system lightly. lol Out of 10 solutions in python3.6 I count 4 plagiarisms on XYPIZQ. CodeChef - A Platform for Aspiring Programmers. Author Alei Reyes Posted on March 1, 2020 March 1, 2020 Categories Challenge, Codechef Leave a comment on A micro-improvement month A two challenge month January Long featured a problem that was solved optimally by at most one contestant (read the statement at CHEFARMY ). The easy-peasy problem for all the players in Division One was Smallest KMP, as a total of 1146 players managed to crack it. This repository contains a solution to the August Long Challenge 2020. I am just curious about the number of cases where MOSS detects a similarity and manual checking happens, and what is the percentage of cases which are false positives. Both the Divisions were assigned eight problems, and the competition was cutthroat. Yes 1 or 2 question are generally easy one with easy logic so there is a big chances of matching code??? Division Two also gave us quite a show. However, there was no lack of challenging problems, as Chefina and Swaps managed to acquire merely two right answers. The players had five exceptionally tough problems to work through, and they did not disappoint. The first 2 or first 3 questions are easy and can have same solutions for many users.Does this also count in plagiarism??? SOLUTION : CodeChef April Long Challenge 2020 | COVID Pandemic and Long Queue | COVIDLQ Due to the COVID pandemic, people have been advised to stay … (Challenge) Bacteria Synthesis was once again public enemy number one as it managed to accumulate only 375 submissions out of which merely 9 hit the bullseye. We invite you to participate in CodeChef’s June Long Challenge, this Friday, 5th June, 15:00 IST onwards The contest will be open for 10 days i.e. If majority of people who checked the code found it same reduce their ranks etc. 15 Likes. One problem where we seriously need to praise the problem setters was Warrior. Over 5000 players sent in submissions for this problem, but only 2 emerged victorious. August 3, 2020 CodeChef is a product of this love, and the collective sentiment of the community has made the platform what it is today. The August Long Challenge 2019 began on the second and […] At the same time, Distribute Apples was the problem with the most attempts with 83,500 submissions. Because if it is less, the second step talks about taking a manual look and it seems like maybe you could actually just mail to the users when there is a sufficiently high similarity without manual checking and let the users appeal to defend. and if someone fills an appeal then you guys can check the code manually or have some trusted coders to check it. Other condition-Things to remember bitwise and of two odd number never will be zero. That is why I am not participating in codechef long challenge, so much cheating from past few months. The monthly contests are always an action-packed deal. no1coder September 12, 2020, 10:00am #3. then what action are u taking against cheaitng?? On the bright side, Chef and Work got over 16000 submissions, and 6771 out of these hit bullseye. Monthly Contests September 2019 & 20, Memorable As Always. All submissions are filtered through MOSS (a plagiarism checker tool), that throws up pairs of submissions with similar code percentage. Important Links of our resources & information -, Prepare With tough problems and tougher competition, read on to relive that electric vibe. Being a small team, we just could not prioritise this over so many other things that we have been doing. Once identified, we disqualify those submissions, and as a result, the corresponding users go down the contest rank list. To plagiarise in a platform that is built to strengthen one’s skill in programming is just counterproductive in the long run. The new discount codes are constantly updated on Couponxoo. ?”, we didn’t say that, and that’s what the blog talks about. The problem that acted as a bandwagon in Division One was Polygon Relationship as it got 800+ submissions from which 681 we’re accepted. Here is the link of the playlist Codechef Long Challenge Questions - YouTube Every video is divided into 1. The problem with the most submissions and successful submissions was Chef Drinks Coke at 9825 submissions, out of which 2262 got the green tick. Were You There At The Indian Programming Camp 2020? Adding to our menu at the Chef’s kitchen, here’s something specially catered for the coding taste buds that are still budding (pun intended). Division Two had equal amounts of activity going on. This weekend’s LunchTime seemed like a fitting way to end the month. Here is the link of the playlist Codechef Long Challenge Questions - YouTube Every video is divided into 1. Meanwhile, Rich Substrings got the most successful submissions with 197 players solving the problem. As you keep participating, you will become better in this format. Now for each plagiarism case, suppose 7 trusted users give their verdict (Y/N on whether or not plagiarism has happened) and you conclude the case based on the majority verdict. We try and make sure that we do not allow any false positives to go through, and therefore, facilitate an extensive appeal process. This would in a way slow up the process instead of speeding it since then we’d have to check each request individually. Also, if it is possible you could publish the similarity scores publicly and reward users with x Laddus per plagiarism detection which may further help reduce some manual checks and speed up the process. As for your question. 3 min read. 250 players tried their hand at Beautiful Subsequence, but unfortunately, none got the revered green tick. Plagiarism is an unfortunate by-product of almost any online contest, and ours has been no exception. Every user caught in plagiarising was informed of the punishment they’d receive beforehand, and they already knew the consequences and the rules. Also, going forward, we will be taking up a proactive approach against those users who are caught plagiarising. And for the question, “Then what action are u taking against cheating”, well, the whole blog is about our measures against cheaters caught in plagiarism. However, we do allow them to make an appeal for their case, informing them of the same via email. MikeMirzayanov → 2020-2021 ICPC, NERC, Южный четвертьфинал (онлайн-трансляция, правила ICPC, предпочтительно команды) sharabhagrawal25 → [For Beginners] Video Tutorials COPS Youtube Channel . And what disgusts me is that the scores of all these cheats have been calculated. As mentioned above, the whole process takes a lot of time, and we will also try and come up with ideas where we can take help of the community in some way to speed up the process. Given that the situation has become so dire, we want to sincerely apologise for the same, and make sure that this is not continued. Also, we’re planning to drop the ratings in a way that’d be quite fair for the users, especially the ones who have cheated in a single contest, and after that not cheated for many contests. About CodeChef Lunchtime: CodeChef Lunchtime is a three hours coding contest where you can show off your computer programming skills. The Indian Computing Olympiad 2021 Registrations Are Now Open! This problem got 12075 submissions, out of which 3018 got the green tick. 8 =>1000 then it is not possible to choose . August 3, 2020 2 min read. ... and links to the codechef-long-challenge topic page so that developers can more easily learn about it. The problem that had the Division One players confused and racking their brain was (Challenge) Bacteria Synthesis. However, the problem that stole the spot for most successful submissions was Dilemma, which received a total of 1160 successful submissions. ... Mar 2019 - May 2020 1 year 3 months. so u are saying that if someone cheats today , his rating will not be dropped for years??? *has extra registration . The toughest problem was Beauty of Segments, as only 8 out of the 75 players who sent solutions claimed the green tick. for DSA Certification. Codechef did not do his job this long challenge yet it was obvious that the plagiarism had to be very big. Ya bro so demotivating … most of the solutions are leaked …rip long challenge. The problem that must have had all these star-coders frustrated was Friends and Candies. For Division One, the problem that acted as crowd favorite was Destroy Cells with 163 successful submissions. We hope that these measures will help address a long pending issue at hand. The above process requires manual scrutiny. SOLUTION to this : After the contest ends, give the codes to audience to survey whether they are same or not. If you need to report any cases of plagiarism, you can always do so here. On the opposite end of the spectrum, even here, ANTS (Challenge) had all the players puzzled as only 4 out of the 450 players that attempted to solve it were successful. This is why manual checking is unavoidable. Similar to Division One, even here, the toughest problem – Elevator managed to get only two correct answers, proving that the August LunchTime 2020 was full of tough problems. The number of cases for MOSS that we receive is in thousands. Hi, you can find the video solutions of CodeChef Long Challenge contests on PrepBytes youtube channel. Trusted users can also be weighted based on the %cases where their verdict has been deemed as the majority verdict. 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