Leetcode 151 Reverse Words in a String

Given an input string, reverse the string word by word.

For example,
Given s = "the sky is blue",
return "blue is sky the".

Update (2015-02-12):
For C programmers: Try to solve it in-place in O(1) space.

练练python，要是用c做的话，先将单词逆置，再将整个串逆置。

class Solution(object):    def reverseWords(self, s):        """        :type s: str        :rtype: str        """        word = s.split()        word.reverse()        return " ".join(word)