题目概述
Given an input string, reverse the string word by word.
Example 1:
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Input: "the sky is blue" |
Example 2:
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Input: " hello world! " |
Example 3:
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Input: "a good example" |
Note:
- A word is defined as a sequence of non-space characters.
- Input string may contain leading or trailing spaces. However, your reversed string should not contain leading or trailing spaces.
- You need to reduce multiple spaces between two words to a single space in the reversed string.
本题用python实现的话其实挺简单的,直接用strip和split方法就可以
代码实现
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class : |
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