Palin

hmm can someone check the test cases cause i get 2 wrong results but when i check them at home(from IOI official site) i get correct results:S

They're good.

http://www.z-trening.com/submit.php?subm_stat=1&submit=7100149602

well i have asked aleksandar who has published this task and he says they are ok...i asked for 4th test case and when i run it on my comp it gave the correct result:S

Try to increase the size of the arrays.

lol it worked:S
just why??
i dont get it on my comp it gave good result with the smaller array...
in this test n is 5000
so 5000 chars
it fits in a niz[5000]...

If you have a string "palin" in your array it would be "palin\0' so every time you need space for X characters you should reserve X + 1 places, this 1 is for the null character ( he defines the end of the string in array ). Your code probably didn't work here because the \0 was placed on the end and you lost the last character.

hmm but there are 2 more test cases with maximum n bit still they passed
and also why does it work normally on my comp?

Maybe the last character wasn't important for the solution in those 2 TC. I don't know why it works on your pc but maybe the OS that you're using doesn't have the same memory management as the one on the graders.

yea its probably cause of that:D
next time always increase the size of the array:D