Solution: Find All Anagrams in a String
Explore how to identify all start indexes of anagrams of string b within string a by using a sliding window and character count hash maps. Learn to efficiently compare character frequencies, update counts dynamically, and return all valid anagram positions. Understand how to apply this approach to anagrams, permutations, and similar pattern-tracking problems.
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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:
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a.length,b.length