557. Reverse Words in a String III-反转字符串中的单词 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.

Solution in python:

class Solution:
    def reverseWords(self, s: str) -> str:
        alist = s.split()
        for i in range(len(alist)):
            alist[i] = alist[i][::-1]
        return ' '.join(alist)