On 09/04/2012 09:41 AM, Dominic Humphries wrote: > On Tue, 2012-09-04 at 14:31 +0100, Matt Freake wrote: >> For that reason, I would have thought there were other, better, recursion >> problems out there I could use. > > Tower of Hanoi? :) > > > but at least 20 disks and it has run before the interview is over! uri