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Rahul Kumar Barnwal @rahulgithub-web

Longest Substring Without Repeating Characters In 60 Chars

Longest Substring Without Repeating Characters" solved using sliding window & Set, O(n) time, O(k) space. Optimize with hash map for better perf.

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The Longest Substring Without Repeating Characters problem is a classic sliding window problem that tests your ability to efficiently manage substrings. Let’s solve LeetCode 3 step by step.


  
  
  🚀 Problem Description

Given a string s, return the length of the longest substring without repeating characters.

  
  
  💡 Examples

Example 1

Input: s = "abcabcbb"  
Output: 3  
Explanation: The answer is "abc", with a length of 3.

    
    

    
    




Example 2

Input: s = "bbbbb"  
Output: 1  
Explanation: The answer is "b", with a length of 1....