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1566. Check If a Word Occurs As a Prefix of Any Word in a Sentence

My accepted Python solution to LeetCode problem 1566, Check If a Word Occurs As a Prefix of Any Word in a Sentence, running in 0ms.

  • Difficulty: Easy
  • Python
  • Runtime 0ms
  • Memory 17.4MB

Read the problem on LeetCode View on GitHub

The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.

Python

Accepted on LeetCode — runtime 0ms, memory 17.4MB, accepted 2025-12-29.

python
class Solution:
    def isPrefixOfWord(self, sentence: str, searchWord: str) -> int:
        words = sentence.split()
        for i, word in enumerate(words):
            if word.startswith(searchWord):
                return i + 1
        return -1

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