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Grokking the Coding Interview Patterns in Python

Solution: Valid Anagram

Explore how to determine if one string is an anagram of another by tracking character frequencies in linear time. Learn to implement an optimized solution using a hash map to count characters, compare their counts, and efficiently verify the anagram property while considering time and space complexity.

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Statement

Given two strings, str1 and str2, check whether str2 is an anagram of str1.

An anagram is a word or phrase created by rearranging the letters of another word or phrase while utilizing each of the original letters exactly once.

Constraints:

  • 1≤1 \leq str1.length, str2.length ≤103\leq 10^3

  • str1 and str2 ...