Leetcode 1455: Check If a Word Occurs As a Prefix of Any Word in a Sentence

In this Leetcode problem, we are trying to find the index of the word with a given prefix.

Problem statement

Solution

Simply go through the words and return the first one found

class Solution {
    public int isPrefixOfWord(String sentence, String searchWord) {
        String[] words = sentence.split(" ");
        int n = words.length;
        for (int i = 0; i < n; i++) {
            String word = words[i];
            if (word.startsWith(searchWord)) {
                return i + 1;
            }
        }
        return -1;
    }
}

Happy coding :)