How can I get ranges from a list of integers in Perl?

Posted by Suezy on Stack Overflow See other posts from Stack Overflow or by Suezy
Published on 2010-04-21T05:26:44Z Indexed on 2010/04/21 6:03 UTC
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perl

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array

I have an array of numbers:

@numbers = 1,2,3,6,8,9,11,12,13,14,15,20

and I want to print it this way:

1-3,6,8-9,11-15,20

Any thoughts? Of course I tried using the most common "looping", but still didn't get it.

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