This user https://www.spoj.pl/users/ahmed_aly_tc/2 is obviously cheating:
Submitting AC solutions to several problems about every 3 seconds (!).
He posted solutions to more than 100 problems in less than 10 minutes 
Edit: It took him 8 min from rank 0 to 123 ...
It looks like ahmed_aly_tc is a clone of ahmed_aly.
Caught another cheater spoj.pl/users/marlon07021/2 !!
just take a peek to this:http://www.spoj.pl/status/marlon07021/signedlist/
Cheaters are growing more & more these days 
Administrator please contact him in his email: marlon07021@rock.com
It's from his profile.
hey all, there should not be any cheating called , if i submit a solution after grasping the whole concept , and then running the program on my system.... checking with the given data.... after all everone learns from some where,.....do reply on my view
the point of having SPOJ is not for getting more ACC "after you have grasped the concept". It is about thinking about the problem for yourself. If you cannot get some problems, means that you have finish off easier ones first. There are many other places where you can learn, I suggest Topcoder to be one. Even the SPOJ tutorial section is very good.
Do not try to read judge solutions and then submit your own. It's a bad habit that will devour you and nothing else.
User horizon has submitted over 180 solutions in the last 3 hours...
One user submitted so many problems in just few minutes.
User : horizon
spoj.pl/users/horizon/5
submissions id:- 2580098 to 2580529 .... and still he is on continue..
horizon submitted codes of this user : spoj.pl/users/imrankane2005/3
Hi,
I am surprised to see my name here.First of all i don't know who that guy horizon is and it's really surprising how that guy get my code(
if vdmedragon is correct). I have only share my code 2 or 3 times with one of my friend and that too only for learning purpose
and i know he's not gonna submit either my code or shared with any body living in china 
And also, vdmedragon can you please mention one or two question's where his source code matches mine because if your assumption is correct
then only reason which i think can be hacking. as i'm fully assured that nobody is gonna submit my code here.
Also you can easily see, that user has solved a lot of problems which i havn't solved yet 
I have just seen that profile and I noticed that the lot of problem he has solved used exact same meory and run time as that of mine.
I have changed my password now even though my orignal password was very much secure. so vdmedragon it's an request from my
side if that user again submit any of my source code please post it here.
i checked some problems and found your name in the header (about 3,4 problems). But I havent called him a cheater
This guy is going on with his cheating action ... submitting one solution per minute last night.
And another one: https://www.spoj.pl/users/venus/
I think that the user edelweiss may be cheating. He's solved 52 problems in one day and total 229 problems in past July.
Take a look at this: vnoi.info/index.php?option=com_v ... =edelweiss3
I strongly believe the first result of DICTSUB is a result of cheating. I made an empty program that just read the input, and it took me about 0.20s, there's no way you can do this problem in 0.00. Since there are only 10 test cases, he could have guessed the output one answer by submission. I suggest to add more testcases to this problem and rejudge.
Please remove this user or change his name: spoj.pl/users/cheater_bot/3
Seems like another cheater is doing his work: https://www.spoj.pl/status/tata/2
spoj.pl/users/kumaranurag/2
This user has 356 Compilation errors !!
