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Learn Data Structures and Algorithms in C#

Problem: Reverse String

Explore how to reverse a character array in place using recursion. Learn to implement a recursive helper function that swaps elements from both ends while maintaining O(1) extra memory, mastering efficient in-place array manipulation in C#.

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Statement

Given an array of characters s, write a method to reverse the array in place.

The reversal must be performed by modifying the input array s directly, using only O(1)O(1) extra memory.

Note: Do not create and return a new array. Modify the input array s in place.

Constraints:

  • 1≤1 \leq s.Length ≤105\leq 10^5 ...