LeetCode 557. Reverse Words in a String III

Question

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

 

Example 1:

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

 

Example 2:

Input: s = "God Ding"
Output: "doG gniD"

 

Constraints:

• 1 <= s.length <= 5 * 104
• s contains printable ASCII characters.
• s does not contain any leading or trailing spaces.
• There is at least one word in s.
• All the words in s are separated by a single space.

 

---

 

Solution

Python

class Solution:
    def reverseWords(self, s: str) -> str:
        list_s = s.split()
        reverse_s = []
        for j in list_s:
            reverse_s.append(self.reverse(j))
        return " ".join(reverse_s)

    def reverse(self, word):
        reverse_word = ""
        for i in range(len(word)-1,-1,-1):
            reverse_word += word[i]
        return reverse_word

Java