Last bugged submission: 3937217.
Problem was fixed, but here's another solution with 0k and 0.00:
https://www.spoj.pl/status/PRIME1,luancorumba4
Please rejudge.
16 days later
Previous fixed, new found:
http://www.spoj.pl/ranks/PALIN2
Edit: Fixed.
1 month later
Another:
http://www.spoj.pl/ranks/MINCOUNT1
Edit: Fixed.
14 days later
1 month later
Another:
http://www.spoj.pl/ranks/NOTATRI
Pity that Java isn't always so fast. 
16 days later
Yet another 0k program:
https://www.spoj.pl/ranks/STAMPS1
28 days later
Last submission was fixed.
And again, and again, and again, and again1... another two (2nd).
3 months later
1 month later
0k solution -> spoj.pl/ranks/MTRIAREA/1