DrScheme

Hi everybody,

first of all, I want to send a big THANK YOU to the creators of this fantastic Online Judge! It's great.

Anyway, I'd like to submit some programs in Scheme. I use DrScheme from http://www.drscheme.org (speech-level: advanced student) and the test-example that is posted in this forum doesn't work in DrScheme. In DrScheme I need to write the test-program like this:

(define (do_it n)
  (local 
  ((define (print_it n)
     (begin
    (display n)
    (newline))))
    (cond
      [(= n 42) void]
      [else 
       (begin
         (display n)
         (newline)
         (do_it (read)))])))
(do_it (read))

When I submit this to the Online-Judge (SCM guile) I get an NZEC-Error.

Now my questions:

1. Is DrScheme compatible to this Online-Judge? (I hope the answer is yes )

2. If the answer to 1. is no: Which program can I use instead of DrScheme?

3. If the answer to 1. is yes: My program always returns 'void' at the end - is that the reason for the error?

4. If the answer to 1. is yes: Which speech-level of DrScheme is supported by this Online-Judge?

5. If the answer to 1. is yes: Which interpreter(?) do I need to select when submitting: guile or qobi?

Any information about this would be very nice!

Keep going with this page

cu

rick