On Wed, 20 Jan 2010 17:02:16 -0800, Darren New wrote:

> Jim Henderson wrote:
>> Now my brain is going to be busy for the next month..... ;-)
> 
> It took me a while, but it became easy once you think about it logically
> and approach the problem systematically.

I have a vague idea of how it could be implemented - but like the 
interview I did with a software engineering department years ago (where I 
had a similar 'problem solving' type of question to answer during one of 
the interviews) translating that into usable code is a skill I haven't 
spent a lot of time developing.

Jim

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