557 Reverse Words in a String III

1. Description

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

 

constraints :

• 1 <= s.length <= 5 * \(10^{4}\)
• 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.

 

2. Algorithms

1. Start
2. Convert data type of s into list splitting by whitespace. 
3. Repeat the steps through the element of s. 
   1. For each string in s, reverse string and store it again. 
4. Return the joined list. 
5. End 

 

3. Codes

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

 

4. Conclusion