Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Find Longest Self-Contained Substring

Explore how to identify the longest self-contained substring within a string by using hash maps to track character occurrences. Understand the window expansion technique to ensure all characters are unique to the substring. This lesson helps develop your skills in applying hash maps to solve optimization problems efficiently.

We'll cover the following...

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 ...