I think the statements of this problem must have a full description of compilers used to compile outputs of solutions, otherwise it's nearly impossible to find out what does "WA1" mean. Not to mention that it's just plain wrong to use some magical non-standard-compatible compiler, that accepts "<iostream.h>" and "cout<<i" without using "std" namespace and so on.

Please add to statements hints about code formatting your compiler accepts, don't turn this wonderful problem to boring technical problem "Archiver or Satisfy Our Compiler"

You can generate archive-program for a simple text on your machine and submit it to see whether it is compiled on the server. Than you can rewrite your archive-program to compare the output with expected text intead of printing it to console.

That's totally not the point. The program submitted might use different compiler from the archive-program being tested. It's also not clear exactly which symbols may appeared in the input.