carloscn / carloscn/structstudy

leetcode500:键盘行(keyboard-row)

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Level-easy 一般问题 字符串 查找
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Description

### 问题描述

给你一个字符串数组 words ,只返回可以使用在 美式键盘 同一行的字母打印出来的单词。键盘如下图所示。

美式键盘 中:

第一行由字符 "qwertyuiop" 组成。
第二行由字符 "asdfghjkl" 组成。
第三行由字符 "zxcvbnm" 组成。

![image](https://user-images.githubusercontent.com/16836611/215366011-10d203fb-5916-4fd5-9b32-c7333bb7af30.png)

示例 1:

输入:words = ["Hello","Alaska","Dad","Peace"]
输出:["Alaska","Dad"]
示例 2:

输入:words = ["omk"]
输出:[]
示例 3:

输入:words = ["adsdf","sfd"]
输出:["adsdf","sfd"]
 

提示:

1 <= words.length <= 20
1 <= words[i].length <= 100
words[i] 由英文字母(小写和大写字母)组成

来源:力扣(LeetCode)
链接:https://leetcode.cn/problems/keyboard-row

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