Solution: Reverse Words in a String
Understand how to reverse the words in a string without altering the characters within each word. This lesson teaches you to remove extra spaces, extract words, and apply the two pointers technique to swap words in place. You'll learn to manage edge cases like leading, trailing, and multiple spaces, ensuring the output sentence contains words separated by a single space.
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Statement
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 English sentence. Therefore, ensure there is only a single space between any two words in the returned string, with no leading, trailing, or extra spaces.
Constraints: ...