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Reverse String

We are to reverse a string without using memory this method is called in-place algorithm

Basically the idea to solve this is:

• When we split the string in half we can reverse them using this s[i], s[n-i-1] = s[n-i-1], s[i]

There are other ways to reverse a string but this method changes the value in memory and does not require much memory usage

Solve Script: link

Leetcode Submission Script

class Solution:
    def reverseString(self, s: List[str]) -> None:
        """
        Do not return anything, modify s in-place instead.
        """
        n = len(s)
        for i in range(n//2):
            s[i], s[n-i-1] = s[n-i-1], s[i]