0500. Keyboard Row
https://leetcode.com/problems/keyboard-row
Description
Given an array of strings words
, return the words that can be typed using letters of the alphabet on only one row of American keyboard like the image below.
In the American keyboard:
the first row consists of the characters
"qwertyuiop"
,the second row consists of the characters
"asdfghjkl"
, andthe third row consists of the characters
"zxcvbnm"
.
Example 2:
Example 3:
Constraints:
1 <= words.length <= 20
1 <= words[i].length <= 100
words[i]
consists of English letters (both lowercase and uppercase).
ac
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