[OT] Re: Lack of `outer` keyword makes inner class dup implossible

[BCS]

Regan Heath wrote:
> On Fri, 14 Jul 2006 17:47:51 -0700, S. <user at pathlink.com> wrote:
> 
>> On 2006-07-14 13:48:14 -0700, BCS <BCS at pathlink.com> said:
>>
>>> S. wrote:
>>>
>>>> It seems that because inner classes lack an `outer` keyword it is  
>>>> impossible for
>>>> them to create a new instance for the purpose of COW when operators  
>>>> like opCom
>>>> are called...
>>>>  sudoku.d(318): outer class Foobar 'this' needed to 'new' nested 
>>>> class  BarBar
>>>>
>>>  sudoku.d as in the game? What does the program do? Is it a 
>>> generator,  a solver, or a player? I ask because I have a solver done 
>>> and would be  interested in comparing them.
>>
>>
>> Yes, I'm fiddling around with an analytical solver.  Mine currently  
>> doesn't solve as many as I would like.  I only implemented three  
>> elimination methods so far.
> 
> I wrote a sudoku solver too. It expects the puzzle in a CSV file, 
> example  attached.
> 
> As far as I know it will solve anything which is 'logically solvable' 
> ..  in other words as long as there is always at least one definate next 
> step  with no 2+ choices and guessing involved.
> 
> Regan


Mine goes the other direction, only set cells that have only one choice 
left, when you run out of those, store the state and guess. It uses a 
stack like system for the states. It was/is solving puzzles in about 
2.75 ms. I think it will solve any puzzle that can be solved, and with a 
little modification, will check if more than one solution exists.