[LeetCode] 2559. Count Vowel Strings in Ranges (Python)
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알고리즘/LeetCode
난이도: Medium 문제 설명You are given a 0-indexed array of strings words and a 2D array of integers queries. Each query queries[i] = [l_i, r_i] asks us to find the number of strings present in the range li to ri (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 ith query. Note that the vowel letters are 'a', 'e', 'i'..