Hash Table
String
Sliding Window
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.
Constraints
- •
0 <= s.length <= 5 * 10⁴ - •
s consists of English letters, digits, symbols, and spaces.
Space Complexity
O(min(m,n))