Skip to content

Latest commit

 

History

History
70 lines (46 loc) · 1.93 KB

884-uncommon-words-from-two-sentences.md

File metadata and controls

70 lines (46 loc) · 1.93 KB

884. Uncommon Words from Two Sentences - 两句话中的不常见单词

给定两个句子 A 和 B 。 (句子是一串由空格分隔的单词。每个单词仅由小写字母组成。)

如果一个单词在其中一个句子中只出现一次,在另一个句子中却没有出现,那么这个单词就是不常见的

返回所有不常用单词的列表。

您可以按任何顺序返回列表。

 

示例 1:

输入:A = "this apple is sweet", B = "this apple is sour"
输出:["sweet","sour"]

示例 2:

输入:A = "apple apple", B = "banana"
输出:["banana"]

 

提示:

  1. 0 <= A.length <= 200
  2. 0 <= B.length <= 200
  3. A 和 B 都只包含空格和小写字母。

题目标签:Hash Table

题目链接:LeetCode / LeetCode中国

题解

Language Runtime Memory
python3 32 ms N/A
class Solution:
    def uncommonFromSentences(self, A, B):
        """
        :type A: str
        :type B: str
        :rtype: List[str]
        """
        words = A.split() + B.split()
        res = []
        for word, cnt in collections.Counter(words).items():
            if cnt == 1:
                res.append(word)
        return res