Solution: Check If a Word is a Prefix of Any Word in a Sentence
Understand how to use a trie to check if a given word appears as a prefix of any word in a sentence. This lesson demonstrates splitting sentences, building a trie for quick prefix lookup, and returning the earliest matching word index efficiently.
We'll cover the following...
We'll cover the following...
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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