Find longest unique substring

Q: Find longest unique substring

This question evaluates proficiency in string algorithms, character-encoding awareness, and the ability to reason about auxiliary data structures for tracking uniqueness and algorithmic complexity.

Q: How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

Question

Given a string s, find the length and one example of the longest substring of s that contains no repeated characters. If multiple answers exist, return any valid one. Explain your algorithm, prove its correctness at a high level, analyze time and space complexity, and discuss edge cases (e.g., empty string, all identical characters, presence of Unicode code points).

Find longest unique substring

Overview

Comments (0)