← 返回 snowflake 的题目列表Vowel Substring
类型：online_judge
Given a string composed entirely of lowercase letters, determine the number of substrings consisting solely of vowels. Vowels include 'a', 'e', 'i', 'o', 'u'.
Input:
s: A string.
Output:
An integer representing the number of substrings containing only vowels.
Example
Input
aeiooeea