Although in the OP there were no specific quality parameters about space/time constraints, my understanding is that space efficiency improvements could come at the expense of (some) speed, hence the suggestion.

Any benchmark should probably consider both aspects.

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

Io ho capito... ma tu che hai detto?

In reply to Re^3: Bidirectional lookup algorithm? (no redis ) by polettix
in thread Bidirectional lookup algorithm? (Updated: further info.) by BrowserUk

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