Longest substring without repeating characters: The ' Longest Substring Without Repeating

The ' Longest Substring Without Repeating Characters ' is one of Leetcode's classic problems that tests your understanding of efficient string manipulation. Let's walk through the problem step-by-step, explore both brute force and efficient solutions, and see how we can arrive at the best approach. Understanding the Problem Statement The problem asks us to find the length of the longest substring without repeating characters in a given string. A substring is defined as a contiguous sequence of ... Learn how to find the longest substring without repeating a character in Java. Given a string str, find the length of the longest substring without repeating characters . For “ABDEFGABEF”, the longest substring are “BDEFGA” and "DEFGAB", with length 6. In this post, we are going to solve the 3. Longest Substring Without Repeating Characters problem of Leetcode. This problem 3. Longest Substring Without Repeating Characters is a Leetcode medium level problem. Let's see code, 3. Longest Substring Without Repeating Characters .