Solution: Find Longest Self-Contained Substring
Explore how to identify the longest self-contained substring in a string by leveraging hash maps for tracking character occurrences. Learn to manage dynamic windows within the string by expanding or discarding invalid substrings, all while maintaining efficient O(n) time complexity and constant space usage. This lesson helps you develop a clear approach to problem-solving using hash maps in coding interviews.
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Statement
You are given a string, s, consisting of lowercase English letters. Your task is to find the length of the longest self-contained substring of s.
A substring t of s is called self-contained if:
tis not equal to the entire strings.Every character in
tdoes not appear anywhere else ins...