From: Jeff <cohen.jeff@...>
Date: 2008-07-17T06:40:51+09:00
Subject: Re: The next number that is not in an array


> Tim Conner wrote:
> > I want to increment the current value of a variable to the next number
> > that does not appear in an array of restricted numbers.
> > e.g.
> > restricted_numbers = [2,3,4,5,8,10,15,29]
>
> > if the variable is currently storing 11 then I want to increment it to
> > 12,
> > however if the variable is currently storing 1 then I want to increment
> > it to 6.
>
> > How is this done in ruby?

How about this?

def find_next_slot(n)
 n += 1 # start one higher
 n += 1 until !restricted_numbers.include(n)
 n  # return the next empty slot
end

Jeff
softiesonrails.com
purpleworkshops.com