String and Array Manipulation | Dataford Interview Questions

Your question is String and Array Manipulation. Start with the requirements on the right.

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

Problem

Vericast campaign content may contain punctuation and spacing that must remain fixed while its alphanumeric characters are reversed. Implement a function that transforms the text and reverses a related integer array in place.

Requirements

Reverse only ASCII letters and digits in text. Non-alphanumeric characters, including spaces and punctuation, must remain at their original indices.
Reverse values in place and return the transformed text together with the same array object.
Do not use Python's built-in reversed() or .reverse() methods.

Formal Specification

Input: text, a string containing ASCII letters, digits, spaces, and punctuation; values, a list of integers.
Output: A two-element list [transformed_text, values], where transformed_text contains the reversed alphanumeric characters and values is reversed in place.
The relative order of all alphanumeric characters is reversed, while every non-alphanumeric character stays fixed.

Constraints

0 <= len(text) <= 10^5
0 <= len(values) <= 10^5
values contains integers within [-10^9, 10^9]
Only ASCII letters and digits are considered alphanumeric

Function Signature

def reverse_campaign_content(text, values):