From: James Edward Gray II <james@...>
Date: 2005-12-31T09:55:58+09:00
Subject: Re: Numeric Maze (#60)

On Dec 30, 2005, at 5:37 PM, Jim Freeze wrote:

> On 12/30/05, Christer Nilsson <janchrister.nilsson@gmail.com> wrote:
>>
>> J. Ryan Sobol wrote:
>>> Would it be appropriate to post my potential answers (not code) to
>>> this question?
>>
>> Some examples:
>>
>> solve(1, 1)  # => [1]
>
>
> Is this a degenerate case? If to go from a to b in (a,b) through
> transformation x,y or z, wouldn't there be two possible shortest  
> solutions:
>
>   [1,2,1]
>   [1,0.5,1]

Hmm, let's go back to the quiz and see if we can find an answer:

On Dec 30, 2005, at 7:37 AM, Ruby Quiz wrote:

> You have a set of three operations:
>
> 	double
> 	halve    (Odd numbers cannot be halved.)
> 	add_two
>
> Problem: Move from the starting point to the target, minimizing the  
> number of
> operations.

The key phrase seems to be "minimizing the number of operations".  I  
don't think we can get any smaller than zero and I don't see anything  
disallowing it, so I imagine it's fine.

Just my opinion on an obviously debatable topic.

James Edward Gray II