Help me please .
and thank you ..

#include <iostream> using namespace std; int main() {    char c;    int isLowercaseVowel, isUppercaseVowel;    cout << "Enter an alphabet: ";    cin >> c;    // evaluates to 1 (true) if c is a lowercase vowel    isLowercaseVowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');    // evaluates to 1 (true) if c is an uppercase vowel    isUppercaseVowel = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');    // evaluates to 1 (true) if either isLowercaseVowel or isUppercaseVowel is true    if (isLowercaseVowel || isUppercaseVowel)        cout << c << " is a vowel.";    else        cout << c << " is a consonant.";    return 0; }

Explanation: