From: Sam Kong <sam.s.kong@...>
Date: 2007-01-24T04:35:17+09:00
Subject: Re: I need a more efficient algorithm for this problem.


James Edward Gray II wrote:
> On Jan 23, 2007, at 11:40 AM, Sam Kong wrote:
>
> > Hi James,
> >
> > James Edward Gray II wrote:
> >> You can always unroll recursive code into an iterative solution:
> >
> > Right. But some recursions are harder to unroll than others.^^
>
> You're not the first person to say that to me, but I still don't
> believe it.  ;)
>
> Think of it this way.  All recursion is doing for you is managing the
> call stack.  You can always do that yourself.
>
> Just use an Array for the stack and put all the local variable in
> it.  That's always works for unrolling recursion.  Period.
>
> Frequently you can get away with much less too.  In my example
> earlier in this thread, note that I didn't even need all the local
> values to unroll it.
>
> It just takes practice to think this way.

I'll take your words.
Thank you very much for your advice.:-)

> 
> James Edward Gray II

Sam