Package g2501_2600.s2559_count_vowel_strings_in_ranges

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    2559 - Count Vowel Strings in Ranges\.

    Medium

    You are given a 0-indexed array of strings words and a 2D array of integers queries.

    Each query <code>queriesi = l<sub>i</sub>, r<sub>i</sub></code> asks us to find the number of strings present in the range <code>l<sub>i</sub></code> to <code>r<sub>i</sub></code> (both inclusive ) of words that start and end with a vowel.

    Return an array ans of size queries.length, where ans[i] is the answer to the i<sup>th</sup> query.

    Note that the vowel letters are 'a', 'e', 'i', 'o', and 'u'.

    Example 1:

    Input: words = "aba","bcb","ece","aa","e", queries = \[\[0,2],1,4,1,1]

    Output: 2,3,0

    Explanation: The strings starting and ending with a vowel are "aba", "ece", "aa" and "e".

    The answer to the query 0,2 is 2 (strings "aba" and "ece").

    to query 1,4 is 3 (strings "ece", "aa", "e").

    to query 1,1 is 0.

    We return 2,3,0.

    Example 2:

    Input: words = "a","e","i", queries = \[\[0,2],0,1,2,2]

    Output: 3,2,1

    Explanation: Every string satisfies the conditions, so we return 3,2,1.

    Constraints:

    • <code>1 <= words.length <= 10<sup>5</sup></code>

    • 1 &lt;= words[i].length &lt;= 40

    • words[i] consists only of lowercase English letters.

    • <code>sum(wordsi.length) <= 3 * 10<sup>5</sup></code>

    • <code>1 <= queries.length <= 10<sup>5</sup></code>

    • <code>0 <= l<sub>i</sub><= r<sub>i</sub>< words.length</code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final IntArray vowelStrings(Array<String> words, Array<IntArray> queries)

      • Methods inherited from class java.lang.Object

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