C program to find whether the given alphabet is a vowel or consonant.

Program code

#include <stdio.h>

#include <conio.h>

void main()

{

char letter;

clrscr();

printf("Please input an alphabet.\n");

scanf("%c",&letter);

if ((letter=='a')||(letter=='e')||(letter=='i')||(letter=='o')||(letter=='u'))

printf("This alphabet is a vowel.\n");

else

printf("This alphabet is a consonant.\n");

getch();

}

Example of output

Please input an alphabet.

n

This alphabet is a consonant.