Reverse Words in a String

Understand how to reverse the order of words in a given string while preserving character order within words, using the two-pointer method. Learn to handle leading, trailing, and multiple spaces effectively for cleaner coding interview solutions.

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You are given a string sentence that may contain leading or trailing spaces, as well as multiple spaces between words. Your task is to reverse the order of the words in the sentence without changing the order of characters within each word. Return the resulting modified sentence as a single string with words separated by a single space, and no leading or trailing spaces.

Note: A word is defined as a continuous sequence of non-space characters. Multiple words separated by single spaces form a valid ...