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3. Longest Substring Without Repeating Characters

3. Longest Substring Without Repeating Characters

Medium
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Companies: Amazon, Google, Bloomberg, Meta, Apple
Acceptance: 33.8%👍 35210|👎 1543

Description

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

Examples

Input:
s = "abcabcbb"
Output:
3
Explanation:

The answer is "abc", with the length of 3.

Input:
s = "bbbbb"
Output:
1
Explanation:

The answer is "b", with the length of 1.

Input:
s = "pwwkew"
Output:
3
Explanation:

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.

Constraints

  • 0 <= s.length <= 5 * 104
  • s consists of English letters, digits, symbols and spaces.

Hints

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Run your code to see test results
Test Case 1
Input:
{"s":"abcabcbb"}
Expected Output:
3
Test Case 2
Input:
{"s":"bbbbb"}
Expected Output:
1
Test Case 3
Input:
{"s":"pwwkew"}
Expected Output:
3