Implement Trie (Prefix Tree)

Explore how to implement a trie or prefix tree to efficiently manage and query strings. Learn to write insert, search word, and search prefix functions, understanding how this data structure supports fast prefix-based lookups common in coding interviews.

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Trie is a tree-like data structure used to store strings. The tries are also called prefix trees because they provide very efficient prefix-matching operations. Implement a trie data structure with three functions that perform the following tasks:

Insert (word): This inserts a word into the trie.
Search (word): This searches the given word in the trie and returns TRUE if the complete word is found (i.e., all characters match and the last node is marked as the end of a word). Otherwise, return FALSE.
Search prefix (prefix): This searches the given prefix ...