Package g0401_0500.s0500_keyboard_row

Class Solution

  • public class Solution
extends Object
    500 - Keyboard Row.

    Easy

    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", and
    • the third row consists of the characters "zxcvbnm".

    Example 1:

    Input: words = [“Hello”,“Alaska”,“Dad”,“Peace”]

    Output: [“Alaska”,“Dad”]

    Example 2:

    Input: words = [“omk”]

    Output: []

    Example 3:

    Input: words = [“adsdf”,“sfd”]

    Output: [“adsdf”,“sfd”]

    Constraints:

    • 1 <= words.length <= 20
    • 1 <= words[i].length <= 100
    • words[i] consists of English letters (both lowercase and uppercase).

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail