c-program

#include <stdio.h> int main() { char c; int lowercase_vowel, uppercase_vowel; printf("Enter an alphabet: "); scanf("%c", &c);

// evaluates to 1 if variable c is a lowercase vowel
lowercase_vowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');

// evaluates to 1 if variable c is a uppercase vowel
uppercase_vowel = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');

// evaluates to 1 (true) if c is a vowel
if (lowercase_vowel || uppercase_vowel)
    printf("%c is a vowel.", c);
else
    printf("%c is a consonant.", c);
return 0;

}