From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-11-05T01:25:49+09:00
Subject: Re: Combination of numbers in an array that add up to x


On Nov 4, 2008, at 8:48 AM, Hae Lee wrote:

> Objective: Find list of values in an array that adds up to a specific
> sum.
> -
> I have a list of values in an array:
> [2429.63, 497.87, 51.96, 59.43, 138.4, 66.22, 28.74, 1.75, 2075.13,
> 556.14, 112.56, 116.5, 84.41, 55.97, 139.07, 24.46]
>
> I want to find a combination among these numbers that adds up to a  
> total
> sum of:
> 3435.78
>
> I was hoping a one-liner in irb would do the trick but I haven't  
> found a
> method, etc. that will help me do this.  Thoughts regarding?
> -- 


start by installing the permutations gem (for a brute force solution).


a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama