Longest Substring Without Repeating Characters

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Quick Overview

This question tests a software engineer's ability to apply sliding window techniques and string manipulation to optimize character uniqueness tracking. It is a classic coding problem that evaluates practical algorithm design, commonly used to assess proficiency with hash-based data structures and efficient string traversal in technical interviews.

Longest Substring Without Repeating Characters

Company: Antra

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Technical Screen

Overview: This question tests a software engineer's ability to apply sliding window techniques and string manipulation to optimize character uniqueness tracking. It is a classic coding problem that evaluates practical algorithm design, commonly used to assess proficiency with hash-based data structures and efficient string traversal in technical interviews.

Read the full Antra Software Engineer interview experience this question came from

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Antra
Jun 20, 2026
mediumSoftware EngineerTechnical ScreenCoding & Algorithms
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