title: Hash trie
text: # Hash trie
  
  In computer science, hash trie can refer to:
  
  * Hash tree (persistent data structure), a trie used to map hash values to keys
  * A space-efficient implementation of a sparse trie, in which the descendants of each node may be interleaved in memory. (The name is suggested by a similarity to a closed hash table.)
  * A data structure which "combines features of hash tables and LC-tries (Least Compression tries) in order to perform efficient lookups and updates"
  