Has Vowels

Asked at MathWorks · Coding Questions · Difficulty: Easy

Given a string array that contains **n** elements, each composed of lowercase English letters, and **q** queries, each query of the format `i-r`, for each query, determine how many strings starting from index **i** and ending at index **r** have vowels as the first and last character. Vowels are in `{a, e, i, o, u}`.

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