Leetcode 3 Longest Substring Without Repeating Characters













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Given a string s, find the length of the longest substring without repeating characters. • Example 1: • Input: s = abcabcbb • Output: 3 • Explanation: The answer is abc , with the length of 3. • Example 2: • Input: s = bbbbb • Output: 1 • Explanation: The answer is b , with the length of 1. • Example 3: • Input: s = pwwkew • Output: 3 • Explanation: The answer is wke , with the length of 3. • Notice that the answer must be a substring, pwke is a subsequence and not a substring. • Example 4: • Input: s = • Output: 0 • Link to challenge: https://leetcode.com/problems/longest...

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