Add solution #2586

Author: JoshCrozier

README.md

@@ -1928,6 +1928,7 @@
 2582|[Pass the Pillow](./solutions/2582-pass-the-pillow.js)|Easy|
 2583|[Kth Largest Sum in a Binary Tree](./solutions/2583-kth-largest-sum-in-a-binary-tree.js)|Medium|
 2585|[Number of Ways to Earn Points](./solutions/2585-number-of-ways-to-earn-points.js)|Hard|
+2586|[Count the Number of Vowel Strings in Range](./solutions/2586-count-the-number-of-vowel-strings-in-range.js)|Easy|
 2594|[Minimum Time to Repair Cars](./solutions/2594-minimum-time-to-repair-cars.js)|Medium|
 2615|[Sum of Distances](./solutions/2615-sum-of-distances.js)|Medium|
 2618|[Check if Object Instance of Class](./solutions/2618-check-if-object-instance-of-class.js)|Medium|

solutions/2586-count-the-number-of-vowel-strings-in-range.js

@@ -0,0 +1,32 @@
+/**
+ * 2586. Count the Number of Vowel Strings in Range
+ * https://leetcode.com/problems/count-the-number-of-vowel-strings-in-range/
+ * Difficulty: 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].
+ */
+
+/**
+ * @param {string[]} words
+ * @param {number} left
+ * @param {number} right
+ * @return {number}
+ */
+var vowelStrings = function(words, left, right) {
+  const vowels = new Set(['a', 'e', 'i', 'o', 'u']);
+  let result = 0;
+
+  for (let i = left; i <= right; i++) {
+    const word = words[i];
+    if (vowels.has(word[0]) && vowels.has(word[word.length - 1])) {
+      result++;
+    }
+  }
+
+  return result;
+};