That looks very much like cheating: approx. 50 AC solutions within 90 min ...
https://www.spoj.pl/users/aiolios/1
Another problem.
Some users are hiding problems with the excuse of 'Empty Input File'.
A recent example was ANARC09E by Robert Gerbicz, username: gerrob.
EDIT: The problem is there is no problem! The problems are perfectly fine! These users are just hiding these problems, so others cannot find and solve it, reducing its point value.
Seems that this guy is submitting lots of solutions from past contests one after another: spoj.pl/users/nealzane/2
Statistics: vnoi.info/index.php?option=com_v ... r=nealzane
Neal is not a cheater, he contributed to the growth of SPOJ.
see: spoj.pl/credits/3
A large number of accepted solutions in short time certainly raises suspitions, but we have to be careful.
I just checked this forum to see if anyone was annoyed by my recent activities, when I resubmitted 50+ of my C++ solutions using a different compiler (g++ 4.3.2 instead of 4.0.0-8) to check if there was any improvement in performance. This kind of stream of submissions would look like cheating to almost everyone following it.
By the way, there were some improvements, but they were not consistent. I reached the first place in 5 problems, anyway.
Carlos
https://www.spoj.pl/status/ALIBB,gxx/
I believe submit #3197093 must be removed (?)
spoj.pl/users/mohamed_maher/
spoj.pl/users/mido22/
i think both accounts are of the same person, today from one account he added a problem in classical section and then solved it immediately, ,
please admins check it, and if found true, then take the appropriate action...
This user has been found cheating from Past COCI,Codechef and ACM contests..
spoj.pl/users/the_great/
Remove his account from SPOJ
Please have a look at this user :
spoj.pl/users/abhipr1/2
He has solved all problems of GNY07* and SAMER08* but has failed to solve simple problems like CPRIME, ANARC09B, CANTON, CHOCOLA, MKBUDGET (its a DP problem of the simplest kind and yet he has solved SAMER08C and SAMER08D). Even the submission times don't differ by much. I might be wrong here but still looks suspicious.
This user submitted 9 different problems within two minutes.
Pretty strange!
spoj.pl/status/smoochy/2
Edit: Furthermore: 19 different Problems in about one hour. Seems like he has copied that.