Consonants in Range

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The program must accept two lower case alphabets CH1 and CH2 as the input. The program must print all the consonants from CH1 to CH2 as the output.
Input Format:
The first line contains CH1 and CH2 separated by a space.
Output Format:
The first line contains all the consonants from CH1 to CH2.
Example Input/Output 1:
Input:
a z
Output:
b c d f g h j k l m n p q r s t v w x y z
Explanation:
All the consonants (except the vowels) from a to z are printed as the output.
Example Input/Output 2:
Input:
v h
Output:
v t s r q p n m l k j h

Solution:-


#include<stdio.h>
#include <stdlib.h>

int isvowel(char ch)
{
    if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u')
    return 1;
    else
    return 0;
}

int main()
{
    char ch1,ch2;
    scanf("%c %c",&ch1,&ch2);
 
    if(ch1<ch2)
    {
        while(ch1<=ch2)
        {
            if(!isvowel(ch1))
            {
                printf("%c ",ch1);
            }
            ch1++;
        }
    }
    else
    {
        while(ch1>=ch2)
        {
            if(!isvowel(ch1))
            {
                printf("%c ",ch1);
            }
            ch1--;
        }
    }
}

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