What kind of C++ compiler do you use?
Borland C 3.1 or something other?
I cannot find it in FAQ.
Can I use STL or no?

I asked about version of C++ compiler used on this server. No answer :) Personally I use MS Visual C++ 6.0, but I already have 2 compilation errors. Seems that BC++ 3.1 is more similar to the compiler used by this system.

As regards STL usage, I guess, it is allowed, because I saw among forum messages some solutions using STL. Best way to answer this question is to try to use STL :)))