Re: Algorithm Help

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1375 GLENDALE MILFORD RD., CINCINNATI, OH 45215

On Oct 1, 2013, at 3:14 PM, Ashley Sheridan <ash@xxxxxxxxxxxxxxxxxxxx> wrote:

> On Tue, 2013-10-01 at 15:09 -0400, Aziz Saleh wrote:
> 
>> DB or flatfile?
>> 
>> I would create a matrix of all kids crossed with every kid. Everytime a kid
>> is put in a home with another kid, ++ that index. When dispatching kids,
>> sort by index ASC.
>> 
>> Aziz
>> 
>> 
>> On Tue, Oct 1, 2013 at 3:01 PM, John Meyer <johnmeyer@xxxxxxxxxxxxxxxxxxx>wrote:
>> 
>>> On 10/1/2013 12:51 PM, Floyd Resler wrote:
>>> 
>>>> Here's my task: A group of kids is going to be staying with different
>>>> host families throughout the next 8 months.  The number of kids staying
>>>> with a host family can range from 2 to 10.  When deciding which kids should
>>>> stay together at a host family, the idea is for the system to put together
>>>> kids who have stayed with each other the least on past weekends.  So, if a
>>>> host family can keep 5 kids, then the group of 5 kids who have stayed
>>>> together the least will be chosen.
>>>> 
>>>> I can't think of an easy, quick way to accomplish this.  I've tried
>>>> various approaches that have resulted in a lot of coding and being very
>>>> slow.  My idea was to give each group of kids a score and the lowest score
>>>> is the group that is selected.  However, this approach wound of iterating
>>>> through several arrays several times which was really slow.  Does anyone
>>>> have any ideas on this puzzle?
>>>> 
>>>> Thanks!
>>>> Floyd
>>>> 
>>>> 
>>>> Whatever solution you're going with will probably involve a relational
>>> database of some sort.
>>> 
>>> 
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>>> 
> 
> 
> This sounds remarkably like homework, which we can't help you with
> unless you've got a specific problem that you're stuck with.
> 
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
> 
> 

Oh, no, this is definitely not homework! :)  Although it certainly seems like a homework question.  This is a real world problem.  I'm keeping track of which kids stay with which host families in the database.  My initial approach was to start with kid 1 and see how many times the other kids have stayed with kid 1.  The move on to kid 2, and so it.  This gives me a score for pairs of kids.  However, if say three kids are staying at a host family, what is the best way to determine which set of three kids have stayed together the least?

Thanks!
Floyd


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