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Solution: Find All Anagrams in a String

Explore how to find all anagrams of a string within another string by using a sliding window and hash maps to track character counts. Understand how this method efficiently identifies anagram start indexes by comparing character frequencies rather than direct substring matching.

Statement

Given two strings, a and b, return an array of all the start indexes of anagrams of b in a. We may return the answer in any order.

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. For example, “act” is the anagram of “cat”, and “flow” is the anagram of “wolf”.

Constraints:

  • 11\leq a.length, b.length 103\leq 10^3
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