Validate Palindrome in Chat Input | Dataford Interview Questions

In an OpenAI chat surface, some validation checks may need to determine whether a user-provided string reads the same forward and backward. Write a function that returns True if a string is a palindrome and False otherwise.

A palindrome is a string that is identical when reversed. For this problem, compare characters exactly as given: do not ignore spaces, punctuation, or letter casing.

Formal Specification

Input: a string s
Output: a boolean indicating whether s is a palindrome

Constraints

0 <= len(s) <= 10^5
s contains printable ASCII characters
Comparison is exact: do not ignore spaces, punctuation, or case

Function Signature

def is_palindrome(s):

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