Reverse Word Order in a Sentence | Dataford Interview Questions

Lever notes may contain leading, trailing, or repeated whitespace. Given a sentence, return its words in reverse order, separated by exactly one space.

A word is any maximal sequence of non-whitespace characters. Punctuation remains attached to its word. Do not reverse the characters within individual words.

Formal Specification

Implement reverse_word_order(sentence), which accepts a string and returns a string. If the input contains no words, return an empty string.

Constraints

0 <= len(sentence) <= 10^5
Words are maximal sequences of non-whitespace characters
The output contains exactly one space between words
Punctuation is not separated from adjacent words

Function Signature

def reverse_word_order(sentence):

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Problem