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🔥Longest Substring Without Repeating CharactersMedium
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MediumSliding Window•Acceptance: 34.8%
Longest Substring Without Repeating Characters
Targeted in FAANG & Tech OA:AmazonMicrosoftGoogleSwiggy
Real-World Engineering Context
High-throughput token sliding window parsing in streaming network packets and cryptographic nonces.
Given a string `s`, find the length of the longest substring without duplicate characters.
Sample Test Cases
Input: ["abcabcbb"]
Expected: 3
Input: ["bbbbb"]
Expected: 1
Input: ["pwwkew"]
Expected: 3
Input: [""]
Expected: 0
Constraints
- 0 <= s.length <= 5 * 10^4
- s consists of English letters, digits, symbols and spaces.
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