I think that you're still missing the lookup into the hash, which isn't a constant time operation and can't be factored out because the OP doesn't have it. Since the best you can do with such a lookup is O(log(N)), IMHO the complexity in your case is at least O(N * log(N)).

Flavio
perl -ple'$_=reverse' <<<ti.xittelop@oivalf

Don't fool yourself.

In reply to Re^4: Combining arrays with grep/unless? by polettix
in thread Combining arrays with grep/unless? by mdunnbass

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