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# [closed] Damn, what just happened !!!

 4 What just happened right now ?? One of my friends called me and asked me to check my CodeChef account. When I did, I was literally surprised. The rating distribution bar chart changed its form completely. However, in my case, it is still a mystery. I am penalised for an identical solution submitted by someone called @kapil_srivatsa, who lives in Chandigarh, over 1700 km away from where I live. His solution: https://www.codechef.com/viewsolution/16196483 Identical, isn't it? How on earth could he possibly obtain my code, when I code completely offline, on Netbeans, in my personal laptop. His submission date is 10.11.17 while mine is on 04.11.17. Even if someone has to be penalised, then why me? He used some unfair means (I don't know what) to obtain my solution and submitted it after almost a week. asked 04 May '18, 13:33 1.0k●1●15 accept rate: 38% 12 Rating ka bharta bann gaya xD (04 May '18, 21:06) I just wanted to ask the @admin on how the plagiarism detection actually works because I have seen solutions of 2 people (will not disclose the names) which are exactly the same but they haven't yet got any rating drops. So, if they can provide us few details on it then that would be really appreciable. (04 May '18, 21:41) shraeyas3★ 2 Nobody is spared today by "Plagiarism Hammer". Even Moderator. Even Top Contributors. XD. "Rating ka bharta bann gaya xD" P.S. This comment made me laugh most. Took 2 minutes to control laugh. (04 May '18, 22:06) 5 This time div2 is really gonna be interesting xD (04 May '18, 22:22) 5 And div1 gonna be very, very lonely :/ (04 May '18, 22:24) Why ain't there any prizes for the Div2 participants? I am starting to feel comfortable in Div2. ;) (05 May '18, 00:56) 3 @sarthakmanna- So that Div1 guys dont get too comfortable and obessed with div2, and decide to remain there forever intentionally. (05 May '18, 01:12) Wish list reset : Get to Div 1 in Codechef - Unmarked xD (05 May '18, 12:10) showing 5 of 8 show all

### The question has been closed for the following reason "Issue resolved." by sarthakmanna 28 Jun '18, 17:15

 0 OH GOD, i am Safe from "Plagiarism Hammer" i never used online IDE (i always used netbeans on my system) so safe from that side.. but i have some doubts-- i always use this Fast I/O in Java in Competitive Programming from geeksforgeeks website for taking input faster in java.. Or if someOne else copied that code from geeksforgeeks and used in his/her code, than what?(codechef will also caught me in case of plagiarism?) edited 2. I have one scenario in my mind-- for example, while solving long challenge problem, if i lernt any new concept from net (assume GFG).. SO what to do then?  1.. use directly that gfg part code in my long challenge code and give refrence to that net part..? OR 2.. modified that gfg code in such a way, that plagrism detector can not detect it is used from outside  answered 05 May '18, 14:16 533●1●12 accept rate: 3% 2 @hemant_dhanuka One suggestion Give attribute and link of website from where you have copied. You will always be safe from Plagiarism Hammer (05 May '18, 14:35) You will not be safe. I have gone under the plagiarism once for this thing only. I recommend you to change a bit in that FAST/IO. https://discuss.codechef.com/questions/123411/wrongly-caught-in-plagiarism/123577 (05 May '18, 17:09) Give attribute will only save you. @ritwikshanker you have not given attributes hence caught. (05 May '18, 17:35) @ritwikshanker - Did you reply with this justification to her that the code is from GFG? Are you penalized for this thing only? (05 May '18, 19:48) can anyOne share sample of submitted code which was taken from net and attribute declared .. (05 May '18, 20:12) https://www.codechef.com/viewsolution/18291547 There a lot of differences. But to be on secure side. This is how I provided attribution. In comments you can also mention some explanation If you think you will be caught by MOSS test. And If you always use fast I/O code. Then you can add attributes in you template. (05 May '18, 23:47) You should 1.. use directly that gfg part code in my long challenge code and give refrence to that net part.. Because this is best and you will be safe if proper reference is there. (05 May '18, 23:48) showing 5 of 7 show all
 1 I got a message that they are dropping ratings for feb18,but this thing was already sorted out,as i wasn't found guilty,and they also restored my submissions back then,so why again this? @vijju123 plz if possible see into this answered 05 May '18, 14:09 1.6k●2●9 accept rate: 23% 2 "This time div2 is really gonna be interesting xD" xD (05 May '18, 17:35) Matter is sorted and closed. (05 May '18, 19:49) So they wont be dropping my ratings right?? (05 May '18, 19:51) 1 No. They wont. Codechef didnt send you any mail. Could be someone pranking you. (05 May '18, 20:02) Yeah u are right,i know who pranked me.. (05 May '18, 20:21) 1 Thanx for the revenge @vijju123 xD (05 May '18, 20:29) ???? What revenge? I dont understand? :) (05 May '18, 20:38) I wonder what you guys are talking about xD (05 May '18, 22:23) 1 how to be innocent 101 @abdullah768 (06 May '18, 09:32) showing 5 of 9 show all
 0 In Aug17 I was new to competitive programming.During Aug17 contest i had given my code to one of my friend. in 1 Feb 2018 i got an email that your have been Plagiarised in Aug17 and my ratings have been dropped and I accepted it. But Now in April Long Contest My ratings have been dropped again saying you have been Plagiarised in Aug17. Again ? why........??????????? I have already paid for Aug17...Now Again for Aug17 ?????????? should i pay for my Aug17 mistake everytime...??? in every contest ??? answered 05 May '18, 13:41 2★sidraees 1 accept rate: 0% @admin @vijju123 please do something (05 May '18, 19:21) sidraees2★ Reply to @admin on that mail. If its a mistake from her side, she will rectify it. Dont panic! :) (05 May '18, 19:50)
 0 The punishment is way too harsh. The dude who copied from me has been plagiarised for multiple contests. I know its my mistake that my code became public accidentally but still the punishment needs to be reduced. @vijju123 is there anything you can do about this? :') answered 05 May '18, 00:14 53●6 accept rate: 0% I dont even know the how the punishment is calculated. They will make it public in a blogpost soon though. Also , if the community suggests to @admin something, I am sure she will be willing to hear and implement. :) (05 May '18, 00:18)
 5 @ista2000 Don't take me wrong. "Rating ka bharta bann gaya xD" Cannot control laughter yet. Meanwhile - (Before And After Smash of "Plagiarism Hammer" by admin) View Content answered 04 May '18, 23:18 2.7k●1●6●18 accept rate: 10% 2 Thanks! I wanted to see the comparison between the distributions. (05 May '18, 01:45)
 1 so finally codechef developed a good plagiarism checker ! very good many coders are working tirelessly to improve there skills copying others code is a kind of cheating to them codechef should suspend accounts of all those involved in multiple plagarism ! answered 04 May '18, 14:59 85●6 accept rate: 0%
 6 You have been stuck by what we call "Plagiarism Hammer". I usually dont talk on these matters but for your case, I think I should make things clear. When I did, I was literally surprised. The rating distribution bar chart changed its form completely. What do you mean by surprised? EVERYBODY caught by the MOSS judge under plagiarism is sent a mail regarding that. @admin asks for their justification so that false positives are eliminated. You got the chance to prove your innocence. And by the way, I did have a look at the codes. Only the variable names are different. In fact, it feels as if someone copied your solution and pasted it with variable names changed. We cannot call this "co-incidence". However, in my case, it is still a mystery. I am penalised for an identical solution submitted by someone called @kapil_srivatsa, who lives in Chandigarh, over 1700 km away from where I live. Admit it, this is pure nonsense. If this argument had any credit that "because of hundreds of km distance, they cant plagiarize my code" then we wouldn't be needing MOSS. In the age of Internet (and ideone) everything is just a few clicks away. How on earth could he possibly obtain my code, when I code completely offline, on Netbeans, in my personal laptop. Your case seems to strongly suggest that your made your code public at ideone or any other online compiler. Or perhaps sharing it with friends on any messaging device. His submission date is 10.11.17 while mine is on 04.11.17. Even if someone has to be penalised, then why me? He used some unfair means (I don't know what) to obtain my solution and submitted it after almost a week. Both are penalized because making solutions public like this does an irreparable damage to fairness and spirit of contest. With due respect, if the argument you sent her was "We are so far, how can he copy my code?" then I can see why you were not spared. If your codes are found identical, its your responsibility to get in touch and provide strong evidence. If you feel you are innocent, get in touch with them and explain your PoV. Dont do that if its otherwise, with years of expertise she can easily distinguish between honest guys and liars. answered 04 May '18, 14:08 15.5k●1●20●66 accept rate: 18% Ok, I admit distance doesn't matter. But isn't the punishment too harsh? For example, take a look at @hruday968, a division A coder whose rating is way below a beginner. (04 May '18, 14:20) Today is the "Plagiarism Hammer" Day. I can see account all over with rating 0. Or ~ -500. Based on number of offences. Even the verdict of IOPC17 are being given now. (04 May '18, 19:47) 5 Plagiarism Hammer? I guess its more like wrath of thanos. Its like "With the infinity stones he can destroy half of the ratings with a snap of his fingers, just like that " xD. Anyways guys cheer up and try getting back to where you were as soon as possible :D. (05 May '18, 20:19) 1 Yeah, no use bring demotivated. Those who did reach that rating by hard work and were wrongly penalized can easily gain it back, because well, they did it once and it shouldn't be hard doing it twice. Those who really did plagiarize are fucked(Thats a good thing and the honest people should be happy with that) xD In reply to @soham1234 , "I don't feel so good" xD (05 May '18, 20:31) 1 Dont worry wait for infinity war 2. Once avengers gets the gauntlet your ratings will be brought back XD (05 May '18, 20:33) 1 looks like the rabbit had another eye which it gave to the codechef devs and they too made a hammer like thor xD (05 May '18, 21:08) LOL xD Those infinity wars references got me hard. (05 May '18, 22:02) shraeyas3★ 2 i am groot xD (05 May '18, 22:47) showing 5 of 8 show all
 0 They dropped my ratings too. I gave them an explanation too still, they dropped my ratings. @admin this is not fair and please retrieve my ratings before the long starts. answered 04 May '18, 13:56 1.7k●2●10 accept rate: 14% 1 I got plagiarised for something that wasn't cheating at all. My friend was submitting his code through my laptop but mistakenly submitted it through my account and then from his own. I wasn't participating in the contest, got a score of 10 in FEB long + rating drop. (04 May '18, 20:47)

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question asked: 04 May '18, 13:33

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last updated: 28 Jun '18, 20:22