My program use about 950 kb of memory. But tests says that program
runs 0.01 s, uses 32 kb of memory and 'WRONG ANSWER'. How it can?

I guess your program gets wrong answer for small test dataes.
such as if you defined an array[1..10000] and it might your programs
for n{size of array needed}=100 {when just first 100element uses}
gets WA... and other memmory never uses...
but anyway, sometimes online judge machine works incorrect...
try to submit again or copy your source here in webboard to dicuss
about it ...

Best
Aidin_n7@hotmail.com