1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence
https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence
Description
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:** 4
**Explanation:** "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:** 2
**Explanation:** "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:** -1
**Explanation:** "you" is not a prefix of any word in the sentence.
Example 4:
**Input:** sentence = "i use triple pillow", searchWord = "pill"
**Output:** 4
Example 5:
**Input:** sentence = "hello from the other side", searchWord = "they"
**Output:** -1
Constraints:
1 <= sentence.length <= 100
1 <= searchWord.length <= 10
sentence
consists of lowercase English letters and spaces.searchWord
consists of lowercase English letters.
ac
Last updated
Was this helpful?