Solution: Find All Anagrams in a String
Explore how to identify all start indexes of anagrams of one string within another using a sliding window approach and hash maps to track character counts. Understand how to efficiently compare character frequencies instead of direct substring matching. This lesson helps you implement a linear time solution with constant space for English lowercase letters.
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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