data structures - Why are hash maps better than trie maps? - Stack Overflow



Hash maps are more common than trie maps because they are more generic: they can be made to work on any object that is hashable, while a trie works on sequences. Hash tables also have better locality of reference in common implementations because they store elements close together.

(Strictly speaking, every object is a sequence of bits, but then a generic trie would require the user to serialize their object before storing it in the trie. That's pretty inconvenient compared to defining custom hash functions.)


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