We are given two sentences A and B. (A sentence is a string of space separated words. Each word consists only of lowercase letters.) A word is uncommon if it appears exactly once in one of the sentences, and does not appear in the other sentence. R…
''' 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…
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 = &…