From: Jeff Lunt <jefflunt@...>
Date: 2012-04-20T07:06:37+09:00
Subject: Re: finding duplicates in an array and its index number

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I'm curious what the purpose is. If it's simply to remove the duplicates
you can call .uniq on the array to remove duplicates.
On Apr 19, 2012 4:55 PM, "newto ruby" <lists@ruby-forum.com> wrote:

> Hi,
>
> I have following array and I am trying to find if there are duplicates
> in the array. I also want to find out their index.
>
> e.g.
>
> a=[1,2,3,1,3]
>
> Here 1 is a duplicate which comes twice and its index is 0 and 3 in the
> array.
>
> Any suggestions?
>
> Thanks
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

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<p>I&#39;m curious what the purpose is. If it&#39;s simply to remove the du=
plicates you can call .uniq on the array to remove duplicates. </p>
<div class=3D"gmail_quote">On Apr 19, 2012 4:55 PM, &quot;newto ruby&quot; =
&lt;<a href=3D"mailto:lists@ruby-forum.com">lists@ruby-forum.com</a>&gt; wr=
ote:<br type=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I have following array and I am trying to find if there are duplicates<br>
in the array. I also want to find out their index.<br>
<br>
e.g.<br>
<br>
a=3D[1,2,3,1,3]<br>
<br>
Here 1 is a duplicate which comes twice and its index is 0 and 3 in the<br>
array.<br>
<br>
Any suggestions?<br>
<br>
Thanks<br>
<br>
--<br>
Posted via <a href=3D"http://www.ruby-forum.com/" target=3D"_blank">http://=
www.ruby-forum.com/</a>.<br>
<br>
</blockquote></div>

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