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Solution: Reverse String

Understand how to reverse a character array in-place by using the two pointers approach. Learn step-by-step how to swap characters from the start and end moving inward, ensuring an efficient O(n) time and O(1) space complexity solution without extra memory.

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) ...