[Haskell-beginners] tower hanoi problem

[Roelof Wobben]

Thanks,

Is it the second time a c b because the next step will be a disk from 
the a to the c disk ?

Roelof



Steven Williams schreef op 13-2-2015 om 22:16:
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> I am really horrible at helping people which is why I delayed replying
> to this. Your email got through to the list twice, you don't need to
> send it again.
>
> The steps you need to take are in the homework assignment. The items
> 1-3 are literally the algorithm you need to use. Something to keep in
> mind is that the pegs can change per function call. For example
> initially you call it with "hanoi 2 a b c", then hanoi calls itself
> again with "hanoi 1 a c b" to achieve one of the steps that you need
> to take.
>
> Steven Williams
> My PGP Key: http://pgp.mit.edu/pks/lookup?op=get&search=0xCACA6C74669A54FA
>
> On 02/13/2015 03:09 PM, Roelof Wobben wrote:
>> Hello,
>>
>> After a short break I try to make the next assignment of the CIS
>> 194 course. I do self-study.
>>
>> Lets say we have 1 disk with 2 pegs then we have this :
>>
>>
>> type Peg = String. type Move = (Peg, Peg) Hanoi :: Integer -> Peg
>> -> Peg -> [Move]
>>
>> So I can do this Hanoi 2 a b
>>
>> How can I proceed further.
>>
>> I do not see how I can tell that the disk can move from a to b And
>> I do not see what the base case will be . I think when a is empty
>> and b has a value.
>>
>> Can anyone shine a light on this matter without telling me the
>> answer ?
>>
>> Roelof
>>
>> typ
>>
>>
>>
>> _______________________________________________ Beginners mailing
>> list Beginners at haskell.org
>> http://www.haskell.org/mailman/listinfo/beginners
>>
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