Tries
A Trie, or prefix tree, is a specialized tree data structure used for efficient storage and retrieval of a set of strings. It is ideal for any problem involving prefix-based operations.
The fundamental implementation involving a TrieNode class and methods for
insert, search, and startsWith. This forms the basis for solving many string and prefix-related problems.Example Problems:
Implement Trie (Prefix Tree)Word Search IIDesign Add and Search Words Data Structure
Solution Spotlight: Implement Trie (Prefix Tree)
This implementation uses a
TrieNode class with an array of children. The insert, search, and startsWith methods traverse the tree from the root, character by character, to perform their respective operations efficiently.ImplementTrie(PrefixTree).java
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