Cheating

Indonesian high schoolers probably copying a solution from one another. This has been going for a long while and seriously disturbed the score in some of the less popular problems, here they’re quite blatant:

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More are submitting8 as I’m typing this.

Chances are they get problems assigned as part of their course but even if in principle they solve individually, what we’re getting in the end is a swarm of groupthink solutions distorting the scoring. I also remember some ACing using both school and private accounts, something I can’t find example of after the DPA rendered the site unsearchable.

Please look into this guy. He is doing 340+ submissions a day and the accuracy is more than 70 percent

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Kacper Bąk12 wants to get a good job in IT so he shows us how to mirror Zobayer’s repository, several problems a minute. Can’t WA with this clever approach, obviously, in fact he’s the quintessential “AC in 1 go” coder, unless he presses the wrong language button when submitting. Any start-ups watching, you better run and hire this guy right now, he’ll provide a solution to any problem as long as someone else had already coded it!

Here’s another with a phenomenal submission and AC rate raju_1910.

And another abhineelnandi3.

Please look into this user, seems like he is cheating

Here’s another, who is currently solving problems in alphabetical order of their problem code.

kuba93510

edit: after much hard copying’n’pasting, s/he’s reached Z, and is now ranked #76.

Another user who likes to solve problems in alphabetical order - arrakis3, and ranked #36 (edit, now at #33.)

Here are six more with suspicious success rates, all attending the Gokaraju Rangaraju Institute of Engineering and Technology.

www.spoj.com/users/telugu_akila/6 64 problems solved in two days
www.spoj.com/users/induriharini/5 70 problems solved in two days
www.spoj.com/users/glaxmipranavi/2 54 problems solved in two days
www.spoj.com/users/lakshmi1212/2 48 problems solved in one day
www.spoj.com/users/deepikajavvaji/1
www.spoj.com/users/abhibachu9/2

and more

edit: added some more

This user is a definitely cheat He is submitting solution from Internet Shikhar Shrivastav
@m1kej9

There are people from Marri Lakshmi Reddy college who are making over 60-70 submissions a day and seem to be cheating from each other. Here are the usernames : @varshitha_06, @swetha37, @shivani_2001, @akanksha_varma, @sowmya_1_2. Please look into them and ban them if malpractice is found.

We have a genius who has risen through the ranks to the No. 2 spot inside a month. In five pages of submission history, there’s not a single wrong answer. Either he hides them, or doesn’t make any. Mighty suspicious, I’d say.

edit: I withdraw my ridiculous allegation!

Not necessary. Please for example look to this: https://www.spoj.com/status/DRAGON,arena/11
And his submissions are not minutes after minutes but rather day after day or year after year

I agree not necessarily. Perhaps he/she had recently unticked the option to Remove me from the user ranking.

For one problem I realised many people have been using my library to submit solutions to the problem. Now if I submit for the same problem will I be called a cheater because I have submitted after them ?

There should be some clear guidelines to what is cheating and what is not.
Say If you read a paper and implement it yourself it won’t be termed cheating as per my understanding but if you find a library corresponding to the paper and use it directly will it be called cheating ? There may be many other people using the same library, so is the first person safe from cheating allegations but the following persons are not ?

Hi mods, I’ve noticed some heavy cheaters
crowdforces1
rayaseiren
hard2kill

crowdforces18 is now on rank #4 worldwide, solving 350+ problems in a week.
Please ban them.

I’ve noticed CrowdForces1 before. I suspect it’s either a collaborative effort, or more likely an external judge outsourcing the validation to SPOJ.

At least this account (crowdforces1) should be set to hidden.