Tests of internal mechanisms

Judge seems to have some problems: There are several 0k AC submissions actually.

Solution AC with 0k memory. Submission ID: 5348366. Problem > spoj.pl/problems/GCPC11F/

There are more such 0k solutions - not only AC, but also WA.
Moreover, the problem concerns all contests.

I copy pasted the official test code at: spoj.pl/forum/viewtopic.php?f=31&t=26 and got NZEC runtime error, same for any other problem I tried to solve using Prolog, even if I don't output anything.

What is wrong ?

There is definitely something wrong with the actual Python 2.5 implementation.
It seems that there are different implementations used on different servers.
Please have a look at my submissions 5357523 and 5357524. The code I submitted is exactly the same, but runtime and memory usage differ significantly. Standard runtime for a Python program that does nothing more than starting the interpreter used to be 0.03 s for Python 2.5 and memory usage used to be 3.7 MB. This is congruent to my submission 5357523. But submission 5357524 takes 0.18 s and 4.4 MB for exactly the same code.

Same problem with Python 3 installation. Two submissions of the same code:
Submission 5357623: AC in 0.91 s with 5.6 MB mem
Submission 5357624: AC in 2.64 s with 6.6 MB mem

Another one: The Python 3.x installation lacks the random module. See my submissions
5357566 (AC) and 5357567 (NZEC) - same code, but random module imported (and not used!).

I can absolutely confirm this. Something must have happend. The results do significantly differ with identical code.

I don't know what this statement refers to, but the Python problems still exist.
- Python 3.1 has no random module available
- Runtimes for both Python 2.5 and Python 3.1 seem to be stable, now, but to the worse:
Python 2.5 needs about 0.15 s and 4.4 MB mem just for startup compared to 0.02-0.03 s and 3.7 MB mem which was typical before.
I don't understand why the former Python 2.5 installation that worked fine, cannot be left as it was?

I made a contest (spoj.pl/NOOBSIAM) but the judging never ends --> spoj.pl/NOOBSIAM/status/

Hi,

I'm attempting to run a Java solution to LITE through the judging system but it keeps returning NZEC. From what I understand, NZEC on Java submissions only occur when an exception is thrown from the main method. However, even if I have the code swallow all exceptions (submission 5475631) I get the NZEC.
Can someone check that it is not a problem with the judging system?

thanks!

Thanks for the fix. I saw the submission is now reported as TLE: has it been rerun? Was the problem that TLE was reported as NZEC? How come the time reported earlier was ~2.5s, now a TLE, while I see a Java submission by someone else to the same problem that was ~6s?

I recently revieved several emails from SPOJ for solutions I posted in December of 2010. I don't know if that has anything to do with the testing being done or not.