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by jqpabc123 2030 days ago
It's often possible to do "better" by tuning something toward the data set. Finding something that is always better is hard.

One thing I have done is a double binary search.

Store prefixes and suffixes seperately. A binary search of the prefixes identifies the suffix clump to search with a binary search. This involves a slight increase in storage --- each prefix needs a suffix pointer.

But maybe I will now try an interpolation search on the suffixes.