August 2015
Intermediate to advanced
216 pages
4h 50m
English
Content preview from Clojure Data Structures and Algorithms CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Designing an autocomplete system using a trie
A trie is a particular tree data structure that makes it possible for us to store prefixed data. As you descend a trie, you construct prefixes. As such, a node's children share a common prefix, which is the one we constructed so far while descending the tree. In fact, tries are like automaton, where descending a branch is analogous to consuming a transition literal and the state you'd get into when you do so is the prefix of that target node.
Generally, nodes of a trie carry information about the transitions and can carry weight depending on their use.
One interesting application of tries is text autocompletion. You can store strings in a prefixed manner in a trie. These strings would span over the shared ...
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