LeetCode 1455. Check If a Word Occurs As a Prefix of Any Word in

Given a sentence that consists of some words separated by a single space, and a searchWord, check if searchWord is a prefix of any word in sentence.

Return the index of the word in sentence (1-indexed) where searchWord is a prefix of this word. If searchWord is a prefix of more than one word, return the index of the first word (minimum index). If there is no such word return -1.

A prefix of a string s is any leading contiguous substring of s.

Example 1:

Input: sentence = "i love eating burger", searchWord = "burg"Output: 4Explanation: "burg" is prefix of "burger" which is the 4th word in the sentence.

Example 2:

Input: sentence = "this problem is an easy problem", searchWord = "pro"Output: 2Explanation: "pro" is prefix of "problem" which is the 2nd and the 6th word in the sentence, but we return 2 as it's the minimal index.

Example 3:

Input: sentence = "i am tired", searchWord = "you"Output: -1Explanation: "you" is not a prefix of any word in the sentence.

Constraints:

• 1 <= sentence.length <= 100

• 1 <= searchWord.length <= 10

• sentence consists of lowercase English letters and spaces.

• searchWord consists of lowercase English letters.

Easy题目，先把sentence 根据空格分列，分成数组，

然后遍历数组，

如果是prefix，则返回；

没有就是-1；

Runtime: 0 ms, faster than 100.00% of Java online submissions for Check If a Word Occurs As a Prefix of Any Word in a Sentence.

Memory Usage: 39.6 MB, less than 98.68% of Java online submissions for Check If a Word Occurs As a Prefix of Any Word in a Sentence.