- Difficulty: Easy
- Tags: LeetCode, Easy, Two Pointers, String, leetcode-557, O(n), O(1)
Problem
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 = "Mr Ding" Output: "rM gniD"
Constraints:
1 <= s.length <= 5 * 104scontains printable ASCII characters.sdoes not contain any leading or trailing spaces.- There is at least one word in
s. - All the words in
sare separated by a single space.