Trie also can be used as a hashset/map, roughly it's like hash(obj).toString is a "word" for a trie and in the leaf we store the object. It's https://en.wikipe

Trie also can be used as a hashset/map, roughly it's like hash(obj).toString is a "word" for a trie and in the leaf we store the object. It's https://en.wikipedia.org/wiki/Hash_array_mapped_trie https://en.wikipedia.org/wiki/Hash_array_mapped_trie which used in Scala's immutableMap https://dotty.epfl.ch/api/scala/collection/immutable/HashMap.html https://dotty.epfl.ch/api/scala/collection/immutable/HashMap...