344-ReverseString.py

# 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.

class Solution:
    def reverseString(self, s: List[str]) -> None:
        s[i], s[len(s) - 1 - i] = s[len(s) - 1 - i], s[i] for i in range(int(len(s)/2))