LC 0344 [E] Reverse String - ALawliet/algorithms GitHub Wiki
class Solution:
def reverseString(self, s: List[str]) -> None:
"""
Do not return anything, modify s in-place instead.
"""
l = 0
r = len(s) - 1
while l < r:
s[l], s[r] = s[r], s[l]
l += 1 ; r -= 1
# for i in range(len(s) // 2):
# s[i], s[-i-1] = s[-i-1], s[i]
# for i in range(len(s) // 2):
# s[i], s[~i] = s[~i], s[i]
# s.reverse()
# s[:] = s[::-1]