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Reverse String In-Place (Two Pointers)

Write a function that reverses an array of characters in-place using O(1) extra memory.

Requirements:

  • Do not allocate extra space for another array.
  • You must modify the input array in-place with O(1) extra memory.
Sample Input:
s = ['h', 'e', 'l', 'l', 'o']
Sample Output:
['o', 'l', 'l', 'e', 'h']
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EXECUTION CONSOLE Tests Passed (+75 XP)
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