Check If It Is a Permutation | Dataford Interview Questions

Poshmark may need to compare two pieces of listing text to determine whether they contain exactly the same characters in a different order. Write a function that checks whether one string is a permutation of another.

Two strings are permutations if they have the same length and every character appears the same number of times in both strings. Comparisons are case-sensitive, and spaces and punctuation count as characters.

Formal Specification

Implement are_permutations(first, second):

Input: Two strings, first and second.
Output: Return True if second is a permutation of first; otherwise, return False.

Constraints

0 <= len(first), len(second) <= 100,000
Strings contain printable ASCII characters
Comparisons are case-sensitive
Spaces and punctuation count as characters

Function Signature

def are_permutations(first, second):

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