Longest Word in a String | Dataford Interview Questions

Find the longest word in a string.

Treat each maximal sequence of non-whitespace characters as a word. Return the longest word exactly as it appears, including punctuation. If multiple words share the maximum length, return the last one. The input contains at least one non-whitespace character.

Input and Output

longest_word(s) receives a string s and returns a string.

Constraints

1 <= len(s) <= 10^5
The string contains at least one non-whitespace character
Words are maximal sequences of non-whitespace characters
Punctuation remains part of a word

Function Signature

def longest_word(s):

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