Package g2501_2600.s2586_count_the_number_of_vowel_strings_in_range

Class Solution

java.lang.Object
g2501_2600.s2586_count_the_number_of_vowel_strings_in_range.Solution
public class Solution extends java.lang.Object
2586 - Count the Number of Vowel Strings in Range.

Easy

You are given a 0-indexed array of string words and two integers left and right.

A string is called a vowel string if it starts with a vowel character and ends with a vowel character where vowel characters are 'a', 'e', 'i', 'o', and 'u'.

Return the number of vowel strings words[i] where i belongs to the inclusive range [left, right].

Example 1:

Input: words = [“are”,“amy”,“u”], left = 0, right = 2

Output: 2

Explanation:

  • “are” is a vowel string because it starts with ‘a’ and ends with ‘e’.

  • “amy” is not a vowel string because it does not end with a vowel.

  • “u” is a vowel string because it starts with ‘u’ and ends with ‘u’. The number of vowel strings in the mentioned range is 2.

Example 2:

Input: words = [“hey”,“aeo”,“mu”,“ooo”,“artro”], left = 1, right = 4

Output: 3

Explanation:

  • “aeo” is a vowel string because it starts with ‘a’ and ends with ‘o’.

  • “mu” is not a vowel string because it does not start with a vowel.

  • “ooo” is a vowel string because it starts with ‘o’ and ends with ‘o’.

  • “artro” is a vowel string because it starts with ‘a’ and ends with ‘o’.

The number of vowel strings in the mentioned range is 3.

Constraints:

  • 1 <= words.length <= 1000
  • 1 <= words[i].length <= 10
  • words[i] consists of only lowercase English letters.
  • 0 <= left <= right < words.length

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    vowelStrings(java.lang.String[] words, int left, int right)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • vowelStrings

      public int vowelStrings(java.lang.String[] words, int left, int right)