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Practice Longest Substring Without Repeating Characters

Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.

Medium#3
LeetCode Problem

Longest Substring Without Repeating Characters

Hash TableStringSliding Window

Problem Statement

Given a string s, find the length of the longest substring without duplicate characters.

Source: Longest Substring Without Repeating Characters on LeetCode. Use the original task for its coding environment and submissions.

Examples

# Example 1

Input
s = "abcabcbb"
Output
3

# Example 2

Input
s = "bbbbb"
Output
1

# Example 3

Input
s = "pwwkew"
Output
3

Constraints

0 <= s.length <= 10^5
s consists of English letters, digits, symbols and spaces.

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