Reverse a String In Place

EasyPython

Problem

Given an array of characters chars, reverse the array in place and return it. The reversed result must contain the same characters in opposite order, and the solution should use constant extra space aside from the input array.

Constraints

1 <= len(chars) <= 10^5
chars[i] is a single character
Use O(1) extra space beyond the input array

Function Signature

def reverse_string(chars):

CodePython 3

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