题目:​​原题链接​(简单)

标签:字符串

解法

时间复杂度

空间复杂度

执行用时

Ans 1 (Python)

O(N) : N为句子中的单词数

O(N)

36ms (84.27%)

Ans 2 (Python)

Ans 3 (Python)

解法一:

def isPrefixOfWord(self, sentence: str, searchWord: str) -> int:
size = len(searchWord)
sentence = sentence.split(" ")
for i in range(len(sentence)):
word = sentence[i]
if size <= len(word):
if searchWord == word[:size]:
return i + 1
else:
return -1