Finding the Maximum Number of Vowels in a Fixed-Length Substring
Given a string s and an integer k, the objective is to determine the highest possible count of vowel letters within any contiguous substring of length k. Vowel letters are defined as 'a', 'e', 'i', 'o', 'u'.
A sliding window approach provides an efficient solution. The algorithm first calculates the vowel count in the initial window of size k. ...
Posted on Wed, 13 May 2026 10:20:16 +0000 by invictive
Calculating the Length of the Longest Substring Without Repeating Characters
Given a string, identify the length of its longest contiguous substring containing no duplicate cahracters.
Example 1:
Input: "abcabcbb"
Output: 3
Explanation: The longest substring without repeating characters is "abc", which has a length of 3.
Example 2:
Input: "bbbbb"
Output: 1
Explanation: The longest substrin ...
Posted on Thu, 07 May 2026 14:57:56 +0000 by rmbarnes82