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Reverse String With Memory Optimization
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Reverse String With Memory Optimization

MediumPython

Problem

Write a function to reverse a string, and explain how you would optimize it for memory usage.

Implement def reverse_string(s):, which accepts a Python string and returns a new string containing the characters of s in reverse order. Preserve spaces, punctuation, digits, and Unicode code points. Explain why Python string immutability affects in-place reversal and distinguish output memory from auxiliary memory.

Examples: "Auburn" returns "nrubuA"; "" returns "".

Constraints: 0 <= len(s) <= 100000.

Constraints

  • 0 <= len(s) <= 100000
  • s may contain spaces, punctuation, digits, and Unicode code points
  • Return a new string and do not modify the input

Function Signature

def reverse_string(s):
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