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Find Longest Self-Contained Substring

Explore how to identify the longest self-contained substring in a string by using hash maps. Understand the problem constraints and practice implementing a solution that detects unique character substrings distinct from the rest of the string. This lesson helps strengthen your skills in applying hash maps to solve coding interview problems involving substring analysis.

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:

  • t is not equal to the entire string s.

  • Every character in t does not appear anywhere else in s ...