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Reverse String

Explore how to reverse a string represented as a character array in place by modifying the original array without extra memory. Learn to apply the two-pointer technique efficiently to meet coding interview constraints.

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) ...