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longest-substring-without-repeating-characters.md

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

Examples:

  • Given "abcabcbb", the answer is "abc", which the length is 3.

  • Given "bbbbb", the answer is "b", with the length of 1.

  • Given "pwwkew", the answer is "wke", with the length of 3. Note that the answer must be a substring, "pwke" is a subsequence and not a substring.


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