Dear Perl Monks,

I am a novice of Perl. My question is rather simple: how can I generate all permutations of a set of characters, with a given length, in an computationally efficient manner?

To further explain my conundrum: I have a large list of elements such as O=C(O)C(N)CCC/N=C(\N)N, O=C(N)C[C@H](N)C(=O)O, O=C(O)[C@@H](N)Cc1cncn1 and so on. I want to generate all possible permutations, including repetitions of these strings, in a given length (for ex. 6).

Thank you in advance!

In reply to all permutations of given lenght by cataclismic_user

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