Reverse String at Qualcomm
Easy80.5% acceptance
This problem has 62.5% frequency at Qualcomm.
Problem Description
Write a function that reverses a string. The input string is given as an array of characters `s`. You must do this by modifying the input array [in-place](<https://en.wikipedia.org/wiki/In-place_algorithm>) with `O(1)` extra memory.
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