From: Robert Klemme <shortcutter@...>
Date: 2009-12-13T21:02:34+09:00
Subject: Re: Code block for element comparison in an array?

On 13.12.2009 12:27, Derek Cannon wrote:
> I'm new to Ruby and I can't think of how to do this! I would like each
> element in an array to compare itself with all its proceeding elements.
>
> For example:
>
> In an array of 10 elements,
> a[0] will be compared to a[1] ... a[9]
> a[1] will be compared to a[2] ... a[9]
> ..
> a[9] will not be compared, as there is nothing larger than it.
>
> For those who don't understand, I think the Java/C++ equivalent would
> be:
>
> for(int i=0; i<  array.length; i++) {
>     for(int j=i+1; j<  array.length; j++) {
>        // Compare array[i] with array[j]
>     }
> }

Just translate this directly to Ruby and you have your solution.  Hint: 
you can use Fixnum#upto.

Kind regards

	robert

-- 
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