Count Vowels
Count Vowels
EasyStrings68% accepted
Given a string, count the number of vowels (a, e, i, o, u) it contains. Both uppercase and lowercase vowels should be counted. This problem teaches string traversal and character comparison.
Approach
Given a string S, print the count of vowels (a, e, i, o, u — case-insensitive) in S.
Input
hello
Output
2
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