Theo830's blog

By Theo830, history, 8 months ago,

I found a cheater in yesterday's round. He/She was a tester and he/she submitted from another account.

I am not 100% sure but the coding style + template is exactly the same. Also, the submissions of the account are really fast for a low CM and his submission on problem C is very weird(105687315).

• +392

 » 8 months ago, # |   +102 See these two : 104262133 and 104261969
•  » » 8 months ago, # ^ |   0 Nice catch
•  » » 8 months ago, # ^ |   +40 Upsolving
 » 8 months ago, # |   -26 Similar case:Your text to link here...
 » 8 months ago, # |   0 good job!
 » 8 months ago, # |   +61 Other than that, he obfuscated his code which broke rule#16. He should be penalized for that.
•  » » 8 months ago, # ^ |   +171 To be honest, your codes are even unreadable and unhackable compared to his codes!
•  » » » 8 months ago, # ^ |   +4 I am used to that type of writing codes. Sorry. But at least, you can format using Astyle my code. I am pretty sure it makes my code readable.
•  » » » » 8 months ago, # ^ |   +26 You cannot copy/paste code during the contest btw.
•  » » » » » 8 months ago, # ^ |   -50 You are right. You beat me xD.
 » 8 months ago, # |   +36 To be honest, I think the first requirement to be a tester is to be a good friend of the writer. If not, then he / she is not qualified to be a tester. I also want to be a tester, but I know how low the probability of becoming a good friend of writer is, so I never expect it. I think that if it is true, his two accounts should be ban
•  » » 8 months ago, # ^ |   +6 Testers are chosen somewhat randomly from Mike, I believe. I've been a tester for some contests since he messaged me about a day before and said 'test this plz'.
•  » » » 8 months ago, # ^ |   +14 Did he exactly wrote "test this plz" or you just changed the words to sound funnier? Just curious
•  » » » » 8 months ago, # ^ |   +11 No of course not, the real message was this:Hi!It would be a real help for Codeforces if you can help with testing of 573.If you can do it, please, write me back. Don't worry if you want to take part officially or can't test it. I understand :-)Thanks, Mike.
•  » » » » » 8 months ago, # ^ |   +12 From these words, I can feel that Mike is kinda good person
•  » » 8 months ago, # ^ |   0 This is called application of cp
 » 8 months ago, # |   +15 First of all, from the nmsl in the code of his question c, he can be sure that he is from China and not Japan. Then, the nohack function shows that he knows the loopholes in question c, and only a few people (writers and testers) know about the loopholes in question c before the game, that is, the probability of him being a tester is very high.
•  » » 8 months ago, # ^ |   +3 I couldn't understand the point of that nohack function. How does it help with loopholes?
•  » » » 8 months ago, # ^ |   +1 I mean, his algorithm takes advantage of this loophole, and he knows that his wrong algorithm can pass the system test (unless someone creates strong enough hack data), the nohack function itself is useless, this is just like a prayer, but he The way of praying is really ugly.
•  » » 7 months ago, # ^ |   +8 I don't understand at all why do you have to point out he is from China. What's the difference between a Chinese or a Japanese or a person whatever country you like cheating? Of course, the term nmsl is a derivative of Chinese and is indeed not decent, but how does this bother you? I am very bothered as a Chinese competitor.
 » 8 months ago, # |   +11 Lol, such an unethical behavior
 » 8 months ago, # |   +22 see these submissions : while (true) { int abc = 0; abc++; abc++; abc--; break; } he just wrote above code every where to get rid of palagarism checker
•  » » 8 months ago, # ^ |   0 Aditya21 See these submissions XD
 » 8 months ago, # |   +41 As a p*0523 Japanese, if this is true, disappointing.Very personally view, but I think it's good to make it more clear how the testers are chosen.
•  » » 8 months ago, # ^ |   0 I think about half of it is searched by the coordinator, and about half is searched by the writer? But the specific standard is not known for the part where the writer searches. Most writers will find it from their friends?
•  » » » 8 months ago, # ^ |   +25 Hmm, in my case, when I was a writer: First, there were some testers chosen by coordinater-side. When my contest was upcoming, someone who wanted to be a tester sent a message to me. I told it to my coordinator, then I was allowed to add some of them as testers. I didn't find any testers from my friends.(Note: This isn't mean that I don't have CP friends) When I was a tester: Sometimes, {I/they} {ask/be asked} nearby contest writers to join as tester(s). I sometimes sent a message to some writers. Sometimes I could join as a tester and sometimes I couldn't. I didn't asked from my friends to join as a tester(Note...) I heard that sometimes the testers are chosen random and they will receive a message.Anyway, I don't know clear rules about choosing testers...
•  » » » » 8 months ago, # ^ |   +14 I heard that sometimes the testers are chosen random and they will receive a message. I've heard about 4 people who randomly got messages for testing, and they were all donors on the last CF donation section. So I think that is the most likely case (unless donors around me happened to be extremely lucky).I don't find picking testers from donors necessarily bad, but I hope CF admins are more clear about this, especially since issues regarding cheaters seem to have worsened recently.
 » 8 months ago, # |   +114 Oh! finally, some smart people pointed out there are cheaters from countries other than Indian as well. As I have seen quite a few blogs getting upvotes in the name of India.
•  » » 8 months ago, # ^ |   -126 stfu
 » 8 months ago, # |   +187 Codeforces has literally become like 'Among Us'. Every contest we have to find the impostors along with doing our tasks,
 » 8 months ago, # |   +2 I didn't expect that from our friend...
•  » » 8 months ago, # ^ |   +16 Judging from the information I got, he should not be your friend. If everything is true, I checked his information. He is still a middle school student and hopes to deal with it low-key. (But at least two of his accounts must be banned).
•  » » » 8 months ago, # ^ |   +18 Sorry for low iq joke)) I've meant Fubuki not the person himself.
•  » » 8 months ago, # ^ |   +41 As funny yellow dog, I didn't expect that from you....
 » 8 months ago, # |   +15 I wrote a comment here for Guitar_Waale_Bhaiya guitar_waale_bhaiya The funniest part is that he was again doing same kind of thing in yesterday's contest.See these submissions 105874881 105895241 105915359 105929955 while (true) { int abc = 0; abc++; abc++; abc--; break; } He was again writing the above code everywhere.
•  » » 8 months ago, # ^ | ← Rev. 2 →   +3 dude he does that in every contest what a little cheat all for a color in his name SAD vulgarity also this submission is all random vulgar dogshit
 » 8 months ago, # |   +48 IDK guys u should work in FBI not waste your great talent here, you've caught really dangerous criminals.
 » 8 months ago, # |   +15 I noticed that after recalculating the rating, his rating still increased. In other words, there is not enough evidence to prove that he cheated? Codeforces officials should be able to find more evidence, such as whether the historical login ips of the two accounts coincide and many more. Or did Mike not notice this post? If everything is true, although I don’t approve of making things big (he is just a middle school student after all), it’s not good to pretend that nothing happened, right?
•  » » 7 months ago, # ^ |   0 I always believe that it's really necessary to punish dishonest competition. But it seems that Codeforces didn't do a good job on this. =-=
 » 8 months ago, # |   -42 Man I can consider the case of cheating of a chinese but why Japan people are cheating. Chinese are the definition of cheating .
•  » » 8 months ago, # ^ |   0 If you are a Chinese, you will understand the meaning of nmsl in his code, shirakami_fbk must come from China, not Japan. In addition, what you said is suspected of regional discrimination.
•  » » » 8 months ago, # ^ |   0 They are a threat ,not today but someday you will realise it.
•  » » » » 7 months ago, # ^ | ← Rev. 11 →   +21
•  » » » » » 7 months ago, # ^ | ← Rev. 2 →   -43 This comment had been deleted.
•  » » » » » 7 months ago, # ^ |   -38 I agree with you.
•  » » » » » 7 months ago, # ^ |   +13 I think his problem is not so serious,but your opinion is too extreme.
•  » » » » » 7 months ago, # ^ |   +64 I'm a Chinese, I love my country, but I downvoted every comment here. (Including yours)This person is definitely wrong. But he has received enough downvotes so most people here aren't really racialists, which means that there is no need to stress it again (someone already said that, why say it again?). Posting angry words in some old post just because you saw someone saying bad things about China and also calling others to attack him is just online bullying — I don't think what you did leaves others a good impression on China.China's positive international profile isn't created by posting angry and belligerent posts on Codeforces (a CP site!), but by hard work of all Chinese people.
•  » » » » » » 7 months ago, # ^ |   0 agree
•  » » » » » 7 months ago, # ^ | ← Rev. 2 →   -33 Agree with that.
•  » » » » » 7 months ago, # ^ |   -10 It's only a game, why you heff to be mad?
•  » » » » » 7 months ago, # ^ |   +39 Please, do not start politics here. If you think his comments are incorrect, you can downvote him or put forward your views instead of making personal attacks. Anything needs to be discussed objectively, since you mentioned "herefore, instead of establishing one more enemy, it is better to make one more friend.". We oppose racial discrimination, but have nothing to do with "China's development".
•  » » » » 7 months ago, # ^ |   -37 First we have to admit that there are Chinese cheating. But that is not a reason for you to say that "Chinese are the definition of cheating. " Cheating happens all around the world in every country, to your opinion, should I consider that the people of your country are all cheating? Nonsense.By W53729
•  » » » » » 7 months ago, # ^ |   -37 I agree with you
•  » » » » » 7 months ago, # ^ | ← Rev. 2 →   -50 deleted
•  » » 7 months ago, # ^ | ← Rev. 2 →   -13 It is not like this.
•  » » » 7 months ago, # ^ |   -40 I think so.
•  » » » 7 months ago, # ^ |   +47 Don't personal attack,please.
•  » » » » 7 months ago, # ^ |   0 I agree.
•  » » » » 7 months ago, # ^ |   0 fine sorry
•  » » » 7 months ago, # ^ |   -16 I think so.
•  » » » 7 months ago, # ^ |   -19 I think so
•  » » » 7 months ago, # ^ |   0 Agree with that.
•  » » 7 months ago, # ^ |   +10 bruh, wut make u think like that? nmsl in english is sorta like the f word and the s word. and that's exactly what I wanna say to u right now. at last PLEASE STOP this regional descrimination. btw:I wonder wut happen with ur brain, are there any problems? if so, please fix it thx.
•  » » 7 months ago, # ^ | ← Rev. 3 →   +8 You can keep your idea ,nothing would be changed though.The one who don't cheat still don't cheat,not affected by nationality or others' comments and prejudice .
•  » » 7 months ago, # ^ |   -8 You are not qualified to comment on us and our country
•  » » 7 months ago, # ^ |   -8 You are not qualified to evaluate our country before you really understand it.
•  » » 7 months ago, # ^ |   -10 ？？？ racial discrimination
•  » » 7 months ago, # ^ |   +3 Please pay attention to your words
•  » » 7 months ago, # ^ | ← Rev. 2 →   -31 Deleted in order to prevent downvotes.
•  » » » 7 months ago, # ^ |   +8 Too extreme.I downvoted you.
•  » » » » 7 months ago, # ^ |   -21 Too extreme.I downvoted you.
•  » » » » » 7 months ago, # ^ |   0 I don't worry about contribution,so there's no matter about downvoting me.But your revenge is not good.
•  » » » 7 months ago, # ^ |   0 But we can see your Rev.1.
•  » » 7 months ago, # ^ |   0 If only one Chinese cheats, it is not stand for "Chinese are the definition of cheating".No regional discrimination, thanks.
•  » » 7 months ago, # ^ |   -18 Child, today is not 1919, I think your pedantic ideas should be moderately modified. Translated by Baidu.
•  » » 7 months ago, # ^ | ← Rev. 2 →   -18 It's true that Chinese Cheating is serious,but you shouldn't make an inflexible thinking of Chinese.
•  » » 7 months ago, # ^ | ← Rev. 24 →   -23 =-=
•  » » 7 months ago, # ^ | ← Rev. 2 →   0 (P.S. Update some personal opinion than rev. 1)To the person who wrote the comment, please stop your sayings of regional discrimination, for I don't want to be a Internet troll.However, Chinese OIer also needs to reflect on this matter, which shows that our OI still has a lot to improve.Although I'm also a Chinese, I will never justify the cheating of a small number of Chinese.
•  » » 7 months ago, # ^ |   0 I am very curious about one thing. If someone in your country cheats, what is the representative of your country?
•  » » 7 months ago, # ^ |   0 How Dare You
•  » » 7 months ago, # ^ |   0 China and Russia are good friends!Forever.
•  » » 7 months ago, # ^ |   0 How could you say that! It is a serious insultation to Chinese people
•  » » 7 months ago, # ^ |   -12 Who told you that？ your stupid brain？ I saw lots of Chinese coder here,and they downvote.（at least 30）. Because The Chinese are very patriotic. And I think they all right. Please don't judge a country by one person. Remember:Those who discriminate will be spurned.
•  » » » 7 months ago, # ^ |   -17 Also,The people who downvote Without reason.Please think about what are you doing first.Codeforces is a great platform.Hope every body can respect others' correct idea.
•  » » » 7 months ago, # ^ |   +21 Whatever your point of view, stop your personal attacks first
•  » » » » 7 months ago, # ^ |   0 Agree.
 » 8 months ago, # | ← Rev. 2 →   0 Testers should pay 200$and they should get 200$ back if everything is ok
 » 8 months ago, # |   +3 In addition, from the blog of parker0523, I can see his email address, which is very similar to the id of shirakami_fbk. I took a screenshot, but I cannot post it because it is suspected of infringing on personal privacy. However, I can say with certainty that the probability of two people being the same person is more than 99.99%. I hope that the codeforces official can investigate.
 » 7 months ago, # |   +31 First we have to admit that there are Chinese cheating. But that is not a reason for you to say that "Chinese are the definition of cheating. " Cheating happens all around the world in every country, to your opinion, should I consider that the people of your country are all cheating? Nonsense.
 » 7 months ago, # |   0 Don't you think that sometime this type of blogs create toxicity to this platform, agree they should be punished but there is no response on this thing even after 3 weeks of publishing.
 » 7 months ago, # |   0 good job!
 » 7 months ago, # |   +3 Why was no action taken against him?
•  » » 7 months ago, # ^ |   0 Actually, I don't understand who is the person you want to take actions against to...
•  » » » 7 months ago, # ^ |   0 I mean the tester who cheated. He was neither removed from the standings nor was his ratings dropped even when it is evident he cheated.
•  » » » » 7 months ago, # ^ |   0 See my comment above or click this