If you search for duplicates, think hash. A hash can store zero or one items with a given key.

If you store your data in a hash with the thing you want to compare on as the key, finding duplicates is a simple matter of asking for the hash element before you store something. If it already exists, the current occurence is a duplicate.

See also: perlintro, perldata.

Perl 6 - second systems done right

In reply to Re: How to find and print duplicte elemets in multi dimensional array by moritz
in thread How to find and print duplicte elemets in multi dimensional array by techlearner

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