Leetcode 1078. Bigram 分词

Leetcode 1078. Bigram 分词

题目

给出第一个词 first 和第二个词 second,考虑在某些文本 text 中可能以 "first second third" 形式出现的情况,其中 second 紧随 first 出现,third 紧随 second 出现。

对于每种这样的情况,将第三个词 "third" 添加到答案中,并返回答案。

示例 1:

输入:text = "alice is a good girl she is a good student", first = "a", second = "good"
输出:["girl","student"]

示例 2:

输入:text = "we will we will rock you", first = "we", second = "will"
输出:["we","rock"]

思路

  • 使用split将字符串切分
  • 挨个比较first, second即可

代码

class Solution:
    def findOcurrences(self, text: str, first: str, second: str) -> List[str]:
        spices, res = text.split(), []

        for i in range(len(spices) - 2):
            if spices[i] == first and spices[i + 1] == second:
                res.append(spices[i + 2])

        return res

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转载自blog.csdn.net/weixin_43891775/article/details/112634726
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