Given a character array s, reverse the order of the words.
A word is defined as a sequence of non-space characters. The words in s will be separated by a single space.
Example 1:
Input: s = ["t","h","e"," ","s","k","y"," ","i","s"," ","b","l","u","e"] Output: ["b","l","u","e"," ","i","s"," ","s","k","y"," ","t","h","e"]
Example 2:
Input: s = ["a"] Output: ["a"]
Constraints:
1 <= s.length <= 105s[i]is an English letter (uppercase or lowercase), digit, or space' '.- There is at least one word in
s. sdoes not contain leading or trailing spaces.- All the words in
sare guaranteed to be separated by a single space.
Follow up: Could you do it in-place without allocating extra space?