liaoyanxu's blog

cheating?
By liaoyanxu, history, 3 hours ago, In English

Yeah,as you see,many people did D in Codeforces Round 967 (Div. 2) ,my max rating is master,i use 1h30min to solve it,when i passed,there are 600+(rated) users passed.WTF?600+(rated)users are master????? Are you joking?????

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3 hours ago, # |
  Vote: I like it +34 Vote: I do not like it

all thanks to telegram groups

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3 hours ago, # |
  Vote: I like it +25 Vote: I do not like it

Bro just look at C. I am specialist from my original account and I couldn't solve C. Due to this mf cheaters I am getting a rank of 5k+. It may be easy but I guess not so easy that more than 4k people can do it within contest..............

HIGHLY DEMOTIVATING(crying emoji)

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    2 hours ago, # ^ |
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    Maybe the question wasn't too difficult to solve, but 5k+ solve is not usual. Maybe the question wasn't too difficult to solve, but 5k+ solve is not usual. Few of my friends who are also actually specialist are unable to solve this.

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      112 minutes ago, # ^ |
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      My spec friend solved this... he did better than me several times already though, but still.

      (I've dodged the contest, but C looks difficult :D)

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        57 minutes ago, # ^ |
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        it is not! basically, you do a dfs from node 1. in the dfs, (let's call current root i), you ask about every node (let's call it j) in your subtree. if the x=i, you can safely add the edge [i, j], otherwise, ask again about j when you reach x. and recursively dfs into every neighbor of i. this works in nlogn, becuase the distance between i and j is halved every query.

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    107 minutes ago, # ^ |
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    c is pretty easy as long as you even know the basics of gt nil not to say there weren't cheaters

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3 hours ago, # |
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I've heard about some people who manage to sell solutions to contests. I'm very interested to see someone who is willing to spend money on it

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3 hours ago, # |
← Rev. 2   Vote: I like it +14 Vote: I do not like it

wait for the rollback, many people are victims of plagiarism

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3 hours ago, # |
  Vote: I like it +18 Vote: I do not like it

This user Pranavi_999 solved A,B,D all in Codeforces Round 967 (Div 2) as a Newbie. And Above all she solved them both in Java and Python what a joke

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    2 hours ago, # ^ |
    ← Rev. 3   Vote: I like it -71 Vote: I do not like it

    That is because I solve codechef problems and I know both java and python.

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      2 hours ago, # ^ |
        Vote: I like it +16 Vote: I do not like it

      and this is why you solved D after B in 10 minutes?

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        2 hours ago, # ^ |
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        not just that, there is a submission for E1 which was submitted in 3 minutes and then B in 9 minutes

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      2 hours ago, # ^ |
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      Wow so you are telling me you were able to solve problem D even when many master ranked users couldn't. Explain the approach if you can

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      2 hours ago, # ^ |
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      lol

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    2 hours ago, # ^ |
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    I saw someone do A in 3 minutes and writing comments there, I don’t know if he cheats or not but it already took me more than a minute to read and understand the question. :(

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      108 minutes ago, # ^ |
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      A was easy, it shouldn't require long time to solve me and my friend only took about 3 to 4 minutes to solve A and about 15 to 20 minutes to solve B (All of them are specialists)

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3 hours ago, # |
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I just happened to see one cheater too ig xD

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    25 minutes ago, # ^ |
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    Now that's fucking weird, I started from D, My solution literally uses a whole segment tree for both min max and It took my fucking 1hr to solve and 20 min to code And I was dbging for 5 minutes, how in the fuck did the cheaters leak that shit in 1:20 :sob:

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      22 minutes ago, # ^ |
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      D actually could be coded in 20-25 minutes without a segment tree if you read well and didn't fuck up in de-abstracting your implementations.

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3 hours ago, # |
  Vote: I like it +48 Vote: I do not like it

At this rate, CF should split ranking system into two independent parts, Indian and non-Indian contestants. I might got down voted saying this but whatever, I don't care

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    73 minutes ago, # ^ |
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    unfortunate but maybe the only solution.

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2 hours ago, # |
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Normally, when I solve two problems, I find myself ranked between 9000 and 10000. But this time, I found myself at 15000, so I believe there are at least 3,000 cheaters in this contest.

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    2 hours ago, # ^ |
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    more than 3000 probably

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      2 hours ago, # ^ |
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      I didn't want to say 5000 people, but it seems like that's closer to reality.

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2 hours ago, # |
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And you don't need to be a psychic to guess where the majority of these people comes from.

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2 hours ago, # |
← Rev. 3   Vote: I like it +4 Vote: I do not like it

d wasn't hard,just implementing, doamne sa nu pice la system test

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2 hours ago, # |
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also there should be a seperated server/contest system for Indian users

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118 minutes ago, # |
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holly shit

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    111 minutes ago, # ^ |
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    Shiet

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      87 minutes ago, # ^ |
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      t bat dc m roi nhe <(")

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        70 minutes ago, # ^ |
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        All three of you have skipped contest, shit!

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          61 minute(s) ago, # ^ |
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          yes,so what ? what u gonna do , lmfao

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            58 minutes ago, # ^ |
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            Not me, but the rollback will do :)

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          40 minutes ago, # ^ |
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          How to see if a user has a skipped contest

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            28 minutes ago, # ^ |
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            I have an extension downloaded, otherwise you go to his profile and in submission apply filter of skipped.

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111 minutes ago, # |
  Vote: I like it +19 Vote: I do not like it

Accounts with more than 3 skipped contests should be banned

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    24 minutes ago, # ^ |
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    What's the problem with skipping contests?

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      11 minutes ago, # ^ |
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      I am not talking about you skipping contests, it's about your contests getting skipped due to plagiarism. Edit: Now that I see your account...I am 100% sure you know what I meant by 'skipped contests'...

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        4 minutes ago, # ^ |
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        Actually I didn't know that) Now it makes more sense

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107 minutes ago, # |
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there are people who also cheated in E1

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105 minutes ago, # |
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Lol, practice more. you're just pissed off that you can't solve these problems and others can, so you want to convince yourself it's all the cheaters' fault

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    103 minutes ago, # ^ |
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    If you intend it in the way I think you intend. I recommend putting double inverted commas

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79 minutes ago, # |
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I've become dumb or everyone has become so smart.

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69 minutes ago, # |
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People cheat...but I, I get cheated on :(

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55 minutes ago, # |
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I (from this account) was in room no. 96 and harshita_iit was on the leaderboard. She solved D 277388242. Clearly her template is different from what she submitted for other two and previous contests. Moreover it matches with https://www.youtube.com/watch?v=uCJiwQbc9Wo&t=98s as well as many other submitted code 277417264, 277416791, 277416913 and god knows how many. She has clearly used chatgpt to change variable names as wells as write comments.

It came to my notice as she was in my room and was on the leaderboard of my room.

I wanted it to write on blog but since I have no access to write it, I wrote it here.

EVEN IITIANS HAVE STARTED COPYING

SHAME

PLS TAKE ACTIONS THIS ACCOUNT AS SHE MIGHT NOT GET PLAGIARISED !!!

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54 minutes ago, # |
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I'm a newbie and solved it. You have to grind harder

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34 minutes ago, # |
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The data of D is too weak. Some people passed it by going through every value each time, which can have a complexity of $$$O(n ^ 2)$$$.

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24 minutes ago, # |
← Rev. 2   Vote: I like it +3 Vote: I do not like it

277408206

This submission by user rajneesh_neo clearly seems to be faulty ..

it clearly has been copied from 277400319 by user keyur14113

using some AI tool , just the variable names have been changed.. rest of the structure remains exactly same..

Kindly look into this MikeMirzayanov

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