Count Vowels

Count how many characters in text are vowels: a, e, i, o, u in either uppercase or lowercase.

Implement count_vowels(text).

Input

text: The text to inspect (ASCII characters).

Output

Return the number of vowels.

Restricciones

0 ≤ length ≤ 10,000

Ejemplos

Entrada:
text = "Hello World"

Salida esperada:
expected = 3

Entrada:
std::string text = "Hello World";

Salida esperada:
long long expected = 3;

Entrada:
string text = "Hello World";

Salida esperada:
long expected = 3;

Entrada:
text = "AEIOU and y"

Salida esperada:
expected = 6

Entrada:
std::string text = "AEIOU and y";

Salida esperada:
long long expected = 6;

Entrada:
string text = "AEIOU and y";

Salida esperada:
long expected = 6;

Referencias

Este reto está adaptado para CodeUtility. Sigue el enunciado y las restricciones indicadas arriba.

• GWU CS1111 Introduction to Software Development - lab sequence