{leetcode}/problems/reverse-words-in-a-string/[LeetCode - Reverse Words in a String^]
Given an input string, reverse the string word by word.
Example 1:
Input: “the sky is blue” Output: “blue is sky the”
Example 2:
Input: " hello world! " Output: "world! hello" Explanation: Your reversed string should not contain leading or trailing spaces.
Example 3:
Input: "a good example" Output: "example good a" Explanation: You need to reduce multiple spaces between two words to a single space in the reversed string.
Note:
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A word is defined as a sequence of non-space characters.
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Input string may contain leading or trailing spaces. However, your reversed string should not contain leading or trailing spaces.
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You need to reduce multiple spaces between two words to a single space in the reversed string.
Follow up:
For C programmers, try to solve it in-place in O(1) extra space.