Longest Substring Without Repeating Characters

Hard

Description:

Given a string s, find the length of the longest substring without duplicate characters. Example: Input: abcabcbb Output: 3 Explanation: The answer is "abc", with length 3.

Input Format:

A single string s consisting of lowercase and/or uppercase English letters.

Output Format:

An integer representing the length of the longest substring without repeating characters.

Tags:

Hashing Sliding Window Two Pointers

Sample Input:

abcabcbb

Sample Output:

Code Editor:

Custom Input:

Output: