So show us what you have tried! How can we fix code we can't see and isn't even described? How can we get your brain pointed in the right direction if you don't show us where it is pointed right now?

A recursive solution is the easiest solution so you are on the right track. Showing us your 'best' attempt will help a lot to let us see where you are having trouble.

True laziness is hard work

In reply to Re: walking a hash by GrandFather
in thread walking a hash by rjl

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