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For a fixed and possibly large number of entries, a binary search might be theoretically fastest.   But, in these modern times, I would be hard pressed not to turn to trusty SQLite... a public domain(!) flat file SQL database of known very good performance.   All things considered, this is probably the best-all-around manageable strategy, with a rich choice of third-party tools available for maintaining the data.


In reply to Re: Lookup closest hash key by Anonymous Monk
in thread Lookup closest hash key by Just in

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