From: Bertram Scharpf <lists@...>
Date: 2009-06-08T19:32:00+09:00
Subject: Re: How to sort array ascending, except zero ?

Hi,

Am Montag, 08. Jun 2009, 17:40:06 +0900 schrieb Paganoni:
> Hello, I need to sort
> [1,4,2,0,8,9] to [1,2,4,8,9,0]
> A simple ascending sort but with the zero values to the end

I don't know what you want to do further with the sorted values
but maybe this is an approach to consider:

  s = a.map { |x| x.nonzero? }
  s.compact!
  s.sort!

or

  s, z = a.map { |x| x.nonzero? }.partition { |x| x }
  s.sort!
  puts z.length

Bertram


P.S.: Still, my opinion is that there should be an equivalent
String#notempty?  to  Numeric#nonzero? !

-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de