Two-Pointer String Reversal | Dataford Interview Questions

How would you reverse a string using a two-pointer approach? Write code to handle edge cases cleanly.

Implement reverse_string(s) using a mutable character list and return the reversed string. The function must correctly handle empty strings, one-character strings, whitespace, punctuation, and repeated characters.

Constraints

0 <= len(s) <= 10^5
s contains Unicode characters supported by strings
The result must preserve every character exactly once

Function Signature

def reverse_string(s):

Your question is Two-Pointer String Reversal. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

How would you reverse a string using a two-pointer approach? Write code to handle edge cases cleanly.

Constraints

0 <= len(s) <= 10^5
s contains Unicode characters supported by strings
The result must preserve every character exactly once

Function Signature

def reverse_string(s):

Your question is Two-Pointer String Reversal. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.