Ebay SWE Interview Question 2024 April | Design | on-campus

Question · Posted Jun 2026

Question 1: Implement Trie (Prefix Tree) Problem Statement A trie (pronounced as "try") or prefix tree is a tree data structure used to efficiently store and retrieve keys in a dataset of strings. There are various applications of this data structure, such as autocomplete and spellchecker. Implement the Trie class: Trie() Initializes the trie object. void insert(String word) Inserts the string word into the trie. boolean search(String word) Returns true if the string word is in the trie (i.e., was ...

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