6

/**

 * C program to display number in words

 */

#include <stdio.h>

#include <math.h>

void main()

{

    int n, num = 0, digits;

    printf("Enter any number to print in words: ");

    scanf("%d", &n);

    digits = (int) log10(n); // Find total number of digits in n

    /* Store reverse of n in num */

    while(n != 0)

    {

        num = (num * 10) + (n % 10);

        n /= 10;

    }

    digits =  digits - ((int) log10(num));  // Find total number of trailing zeros

    /*

     * Extract last digit of number and print corresponding number in words

     * till num becomes 0

     */

    while(num != 0)

    {

        switch(num % 10)

        {

            case 0: printf("Zero ");

                break;

            case 1: printf("One ");

                break;

            case 2: printf("Two ");

                break;

            case 3: printf("Three ");

                break;

            case 4: printf("Four ");

                break;

            case 5: printf("Five ");

                break;

            case 6: printf("Six ");

                break;

            case 7: printf("Seven ");

                break;

            case 8: printf("Eight ");

                break;

            case 9: printf("Nine ");

                break;

        }

        num /= 10;

    }

    /* Print all trailing zeros */

    while(digits)

    {

        printf("Zero ");

        digits--;

    }

    getch();

}