MediumTopic: Sliding WindowExpected: O(N) Time • O(min(N, M)) Space

Longest Window of Unique Characters

Given a string `s`, find the length of the longest contiguous window that contains no repeated characters.

Examples
Input: s = "dvdf"
Output: 3
The longest repeat-free window is "vdf", length 3.
Input: s = "aaaa"
Output: 1
Every window longer than 1 character repeats.
Constraints
  • 0 <= s.length <= 4 * 10^4
  • s may contain letters, digits, symbols, and spaces.
solution.js
JavaScript (ES6+)
Test Execution Results
Input:["dvdf"]
Expected:3
Your Output:--