[LeetCode]557. Reverse Words in a String III

題目

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.

方法

這題比較簡單,通過空格分割字符串,然后reverse每個字符串,再用空格拼接起來即可

python代碼
class Solution(object):
    def reverseWords(self, s):
        """
        :type s: str
        :rtype: str
        """
        strs = s.split(' ')
        reverseStrs= []
        for tempStr in strs:
            reverseStrs.append(tempStr[::-1])

        return ' '.join(reverseStrs)

assert Solution().reverseWords("Let's take LeetCode contest") == "s'teL ekat edoCteeL tsetnoc"
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