From: Lyndon Samson <lyndon.samson@...>
Date: 2005-10-17T10:44:35+09:00
Subject: Re: How to get non-unique elements from an array?

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Funny, doesnt work when an item in the array > 10...

Plus, reading the documentation ( doh! ) I can access a Bignum bit with []


On 10/17/05, Lyndon Samson <lyndon.samson@gmail.com> wrote:
>
> Not very elegant, but a different approach...
>
> bn =3D bn2 =3D 0
> a.each {|el|(bn2 |=3D (1<<el) if (bn & ( 1<<el) ) !=3D 0) | bn |=3D (1<<e=
l) }
> 0.upto(a.length) { |bitNdx| puts bitNdx if (bn2 & ( 1<<bitNdx )) !=3D 0 }
>
>
>


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