java.lang.Object
g1401_1500.s1456_maximum_number_of_vowels_in_a_substring_of_given_length.Solution

public class Solution extends Object
1456 - Maximum Number of Vowels in a Substring of Given Length.<p>Medium</p> <p>Given a string <code>s</code> and an integer <code>k</code>, return <em>the maximum number of vowel letters in any substring of</em> <code>s</code> <em>with length</em> <code>k</code>.</p> <p><strong>Vowel letters</strong> in English are <code>'a'</code>, <code>'e'</code>, <code>'i'</code>, <code>'o'</code>, and <code>'u'</code>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> s = &ldquo;abciiidef&rdquo;, k = 3</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong> The substring &ldquo;iii&rdquo; contains 3 vowel letters.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> s = &ldquo;aeiou&rdquo;, k = 2</p> <p><strong>Output:</strong> 2</p> <p><strong>Explanation:</strong> Any substring of length 2 contains 2 vowels.</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> s = &ldquo;leetcode&rdquo;, k = 3</p> <p><strong>Output:</strong> 2</p> <p><strong>Explanation:</strong> &ldquo;lee&rdquo;, &ldquo;eet&rdquo; and &ldquo;ode&rdquo; contain 2 vowels.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= s.length <= 10<sup>5</sup></code></li> <li><code>s</code> consists of lowercase English letters.</li> <li><code>1 <= k <= s.length</code></li> </ul>
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • maxVowels

      public int maxVowels(String s, int k)