On Monday, March 24, 2003, 3:35:23 PM, Julian wrote:

> Or have I misinterpreted the problem?  It seems too trivial to be a 
> "show me that this is possible" kind of problem...  :-(

Thanks for the solution.  You didn't misunderstand the problem, nor
did I doubt it was possible.  But Jim mentioned that walking two lists
in parallel was a special case that Ruby's iterators don't handle very
gracefully.  So I wanted to see what "the Ruby way" was.

Thanks also for reinforcing that I shall never understand
continuations!

Gavin