Problem - 4 : alphabet, digit or special character

#include <stdio.h>

int main()
{

    char ch;

    printf("Enter anything : ");
    scanf("%c",&ch);

    if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')){

        printf("%c is a Alphabet\n",ch);

    }

    else if(ch >= '0' && ch <= '9'){

        printf("%c is  a Digit\n",ch);

    }

    else {

        printf("%c is a Special Character\n",ch);

    }

    return 0;

}