text: '''
  ## Question
  
  ### 344. [Revese String](https://leetcode.com/problems/reverse-string/)
  
  Write a function that reverses a string. The input string is given as an array of characters `char[]`.
  
  Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.
  
  You may assume all the characters consist of `printable ascii characters`.
  
   
  Example 1:
  
  Input: ["h","e","l","l","o"]
  Output: ["o","l","l","e","h"]
  
  Example 2:
  
  Input: ["H","a","n","n","a","h"]
  Output: ["h","a","n","n","a","H"]
  
  ## Solutions
  '''
  
  class Solution:
      def reverseString(self, s: List[str]) -> None:
          i = 0
          j = len(s) - 1
          while i < j:
              s[i],s[j] = s[j],s[i]
              i += 1
              j -= 1
  
  # Runtime: 164 ms
  # Memory Usage: 17.6
  
  
  class Solution:
      def reverseString(self, s: List[str]) -> None:
          s.reverse()
  
  # Runtime: 164 ms
  # Memory Usage: 17.6