The three rows of the qwerty keyboard are
zxcvbnm. Your task is to find the longest word that can be typed using only one row of the keyboard, from a given list of words.
Sample input 1
artist home gas writer geology marine twerp
(Of the given words, only
twerp can be written using a single row, and
writer is the longest)
The words may not be actual words (so don't assume the third row to be invalid). However, you can assume that there will always be exactly one answer (no more, no less).
Sample input 2
wrhuji bxnzmmx gllwssjjd vnccbb lrkjhgfdsa tttttt
Additional punctuation and whitespaces can be provided in input (as per language requirements). However, no extra output should be given. Input and output are in lower case. Shortest code wins.