Programming task - 01

#include <stdio.h>

int main()
{
    char str[50];
    int alphabets = 0;
    int digits = 0;
    int specialchar= 0;
    int i = 0;


    printf("Enter any string : ");
    scanf("%s", &str);

    /*
     * Check each character of string for alphabet, digit or special character
     */
    while(str[i]!='\0')
    {
        if((str[i]>='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z'))
        {
            alphabets++;
        }
        else if(str[i]>='0' && str[i]<='9')
        {
            digits++;
        }
        else
        {
            specialchar++;
        }

        i++;
    }

    printf("Alphabets = %d\n", alphabets);
    printf("Digits = %d\n", digits);
    printf("Special characters = %d", specialchar);

    return 0;
}