557. Reverse Words in a String III -- Python

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本文介绍了一种算法，用于反转字符串中每个单词的字符顺序，同时保持单词原有的顺序不变。通过将字符串分割成单词列表，反转每个单词后重新连接，实现了高效处理。

557. Reverse Words in a String III

Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Example 1:

Input: "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"

Note: In the string, each word is separated by single space and there will not be any extra space in the string.

思路：

字符串不可改变，用每个单词都有且仅有一个空格相间这个特点进行分割，生成列表，对列表中的元素（即每个单词）取反后，再 join 在一起.

代码:

class Solution:
    def reverseWords(self, s):
        """
        :type s: str
        :rtype: str
        """
        word_list=s.split(' ')
        output=[]
        for word in word_list:
            reverse_word = word[::-1]
            output.append(reverse_word)
        return ' '.join(output)