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…

题目要求 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 senten…

题目标签:HashMap 题目给了我们两个句子,让我们找出不常见单词,只出现过一次的单词就是不常见单词. 把A 和 B 里的word 都存入 map,记录它们出现的次数.之后遍历map,把只出现过一次的存入 result. Java Solution: Runtime: 3 ms, faster than 89.90% Memory Usage: 37.2 MB, less than 85.88% 完成日期:03/27/2019 关键点:hashmap class Solution { publ…

problem 884. Uncommon Words from Two Sentences 题意:只要在两个句子中单词出现总次数大于1次即可. 注意掌握istringstream/map/set的使用方法. solution: class Solution { public: vector<string> uncommonFromSentences(string A, string B) { vector<string> res; unordered_map<string,…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 字典统计 日期 题目地址:https://leetcode.com/problems/uncommon-words-from-two-sentences/description/ 题目描述 We are given two sentences A and B. (A sentence is a string of space separated wo…

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…

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…

这是悦乐书的第338次更新,第362篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第207题(顺位题号是884).我们给出了两个句子A和B.(一个句子是一串空格分隔的单词.每个单词只由小写字母组成.)如果一个单词在其中一个句子中只显示一次,并且不出现在另一个句子中,则该单词不常见.返回所有不常见单词的列表.你可以按任何顺序返回列表.例如: 输入:A = "this apple is sweet", B = "this apple is sour&…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3816 访问. 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. 输入:A = "this apple is sweet", B = "this apple…

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…