Leetcode Problem 208. Implement Trie (Prefix Tree)

208. Implement Trie (Prefix Tree)

Leetcode Solutions

Initialize the Trie node with a boolean flag to mark the end of a word and an array of child nodes for each character.
To insert a word, iterate through each character, creating new nodes if necessary, and set the end flag for the last character.
To search for a word, iterate through each character, checking if the node exists. If the end flag is true at the end of the iteration, return true; otherwise, return false.
To check if a prefix exists, iterate through each character as in the search operation, but return true if the iteration completes, regardless of the end flag.

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