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Solution: Reverse String

Understand how to reverse a character array in-place by applying the two pointers technique. This lesson guides you through swapping elements from both ends of the array until reversed, emphasizing efficient space usage and linear time complexity. You will learn to implement this strategy effectively for coding interviews.

Statement

You are given a character array, s, representing a string. Write a function that reverses the array in-place.

  • The reversal must be done by modifying the original array directly.

  • You cannot use extra memory beyond a constant amount O(1)O(1) ...