Nuacht

Longest-Substring-Without-Repeating-Characters Given a string s, find the length of the longest substring without repeating characters. Explanation: Sliding Window Approach: We use two pointers (left ...
Given a string `s` and an integer `k`. Return _the maximum number of vowel letters_ in any substring of `s` with length `k`. **Vowel letters** in English are (a, e, i, o, u).