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Solution: Reverse String

Understand how to reverse a string represented as a character array by using the two pointers technique. This method swaps characters from the ends moving inward, enabling in-place reversal with constant extra space and linear time complexity. You will learn the step-by-step process to implement this solution efficiently and why it is optimal for memory usage.

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) ...