Solution: Find All Anagrams in a String
Explore how to find all anagrams of one string within another by using a sliding window and hash maps to track character counts. Understand how to efficiently compare these counts to identify anagrams and gather all relevant start indexes. This lesson helps you apply frequency tracking and sliding window patterns to solve similar substring search problems with optimal time and space complexity.
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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