Count vowels in string

Easy 20 pts New · no attempts yet csharp

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Count vowels in "Interview Prep".

Static hints

Loop chars and check if in "aeiou".

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Official solution

using System;

class Program
{
    static void Main()
    {
        string s = "Interview Prep";
        int count = 0;
        foreach (char c in s.ToLower())
            if ("aeiou".Contains(c)) count++;
        Console.WriteLine(count);
    }
}

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Explanation

Normalize case with ToLower() before checking vowel set.

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Count vowels in string

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