Medium
Quiz
#438 Find All Anagrams in a String
APPROACH
Given strings s and p, return a list of all starting indices in s where a contiguous substring of the same length as p is an anagram of p. Results may be returned in any order.
Example 1:
Input: s = "cbaebabacd", p = "abc"
Output: [0,6]
Explanation:
The substring with start index = 0 is "cba", which is an anagram of "abc".
The substring with start index = 6 is "bac", which is an anagram of "abc".
Example 2:
Input: s = "abab", p = "ab"
Output: [0,1,2]
Explanation:
The substring with start index = 0 is "ab", which is an anagram of "ab".
The substring with start index = 1 is "ba", which is an anagram of "ab".
The substring with start index = 2 is "ab", which is an anagram of "ab".
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What is the optimal approach for this problem?