- 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 * 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.