Solution: Check If a Word is a Prefix of Any Word in a Sentence
Explore the process of using trie data structures to check if a given search word is a prefix of any word in a sentence. Understand how to split the sentence, build a trie with word positions, and efficiently find the earliest word where the prefix appears, while analyzing time and space complexity.
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Statement
You are given a sentence containing words separated by single spaces and a searchWord. Your task is to determine whether searchWord is a prefix of any word in the sentence.
Return the 1-based index of the first word in which searchWord appears as a prefix.
If
searchWordis a prefix of multiple words, return the index of the earliest such word.If no word starts with
searchWord, return.
A prefix of a string is any contiguous substring that begins at the first character.
Constraints:
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