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Reverse String
EasyAlgorithmsDescription
Write a function that reverses a string. The input string is given as an array of characters `s`.
You must do this by modifying the input array **in-place** with O(1) extra memory.
Example 1
Input: s = ["h","e","l","l","o"]
Output: ["o","l","l","e","h"]
Example 2
Input: s = ["H","a","n","n","a","h"]
Output: ["h","a","n","n","a","H"]
Constraints
- 1 <= s.length <= 10^5
- s[i] is a printable ASCII character.
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