From: Brian Adkins <lojicdotcom@...>
Date: 2007-10-20T16:30:03+09:00
Subject: Re: combinations listing

On Oct 19, 9:25 pm, Michael Linfield <globyy3...@hotmail.com> wrote:
> Thanks Brian, after testing out one of the 2 methods i get better
> results...I was going to use your permutation method but i get a
> localjumperror, I'll have to look into it more because i generally just
> glanced at the define:

You need to pass in a block.

> def words chars, result='', &b
>   if chars.empty?
>     yield result
>   else
>     chars.length.times do |i|
>       c = (x = chars.clone).slice!(i)
>       words(x, result + c, &b)
>     end
>   end
> end
>
> ...
> Oh, one other question, if i wanted to benchmark this entire program in
> 1 clean sweep how would i do it, id like to compare the before and after
> methods to see if they are in fact actually making a dent. With words
> such as alphabetically i still have the issue of the overhaul on ram
> creating billions of permutation possibilities lol.

Creating all possible permutations is the wrong approach. See my other
post.