[Leetcode] Reverse Words in a String

Problem

Given an input string, reverse the string word by word.
For example,
Given s = “the sky is blue“,
return “blue is sky the“.

Analysis

  • 首先split string by space
  • 然后 append word in reverse order
  • 注意 如果当前非空,在append下一个word之前,需要append空格

Code


Reference

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