# Write a program that receives an integer (less than or equal to nine digits in length) and prints out the number in words. For example, if the number input is 12342, then the output should be Twelve Thousand Three Hundred Forty-Two.

F
Sections
11
Exercises
``````#include<stdio.h>
#include<conio.h>
#include<Windows.h>
#include<malloc.h>

#define EndofNumber 13
#define LastElement i+2

void rev_arr(int *arr)
{
int temp, i, max, j;
for (i = 0; arr[i] != EndofNumber; i++);/*Counting the total number of elemeents excpet the last EndofNumber*/
max = i - 1;/*Max is the total number of elements, as the counting starts from 0 so we subtract 1 from it*/
i = 0;
for (j = max; j >= 0; j--, i++)
temp[j] = arr[i];/*temp starting from the last*/
for (i = 0; i <= max; i++)
arr[i] = temp[i];/*reversing the */
}
int main()
{
int num, a = 0, arr, i;
char word;
printf("\nEnter the number (max. 9 digits) : ");
scanf("%d", &num);

for (i = 0; num != 0; i++)
{
arr[i] = num % 10;
num /= 10;
}/*Saperating the digits and saving the number in array*/

arr[i] = EndofNumber;/*Terminating array*/

rev_arr(arr);/*The numebrs in the array are saving in the  reverse mode
as the saperation of the digits are takes place from last,
so we will reverse the numbers of the array but EndofNumber will have the same
position*/

printf("\n\n\nNumber in words : ");

for (i = 0; arr[i] != EndofNumber; i++)/*Traversing the whole array.*/
{
if (arr[i + 5] == EndofNumber || arr[i + 7] == EndofNumber || arr[i + 9] == EndofNumber || arr[i + 2] == EndofNumber)
{
if (arr[i] == 1)
{
if (arr[i + 1] == 1)
printf("Eleven ");
if (arr[i + 1] == 2)
printf("Twelve ");
if (arr[i + 1] == 3)
printf("Thirteen ");
if (arr[i + 1] == 4)
printf("Fourteen ");
if (arr[i + 1] == 5)
printf("Fifteen ");
if (arr[i + 1] == 6)
printf("Sixteen ");
if (arr[i + 1] == 7)
printf("Seventeen ");
if (arr[i + 1] == 8)
printf("Eighteen ");
if (arr[i + 1] == 9)
printf("Ninteen ");
if (arr[i + 1] == 0)
printf("Ten ");

i++;/*If we continue so these below words will not print as the loop is continueing from here.*/

if (arr[i + 10] == EndofNumber)
printf("Arab ");
if (arr[i + 8] == EndofNumber)
printf("Crore ");
if (arr[i + 6] == EndofNumber)
printf("Lac ");
if (arr[i + 4] == EndofNumber)
printf("Thousand ");
if (arr[i + 3] == EndofNumber)
printf("Hundred ");

continue;
}
if (arr[i] == 2)
printf("Twenty ");
if (arr[i] == 3)
printf("Thirty ");
if (arr[i] == 4)
printf("Fourty ");
if (arr[i] == 5)
printf("Fifty ");
if (arr[i] == 6)
printf("Sixty ");
if (arr[i] == 7)
printf("Seventy ");
if (arr[i] == 8)
printf("Eighty ");
if (arr[i] == 9)
printf("Ninety ");
}
else
{
if (arr[i] == 1)
printf("One ");
if (arr[i] == 2)
printf("Two ");
if (arr[i] == 3)
printf("Three ");
if (arr[i] == 4)
printf("Four ");
if (arr[i] == 5)
printf("Five ");
if (arr[i] == 6)
printf("Six ");
if (arr[i] == 7)
printf("Seven ");
if (arr[i] == 8)
printf("Eight ");
if (arr[i] == 9)
printf("Nine ");
}

if (arr[i + 10] == EndofNumber)
printf("Arab ");
if (arr[i + 8] == EndofNumber)
printf("Crore ");
if (arr[i + 6] == EndofNumber)
printf("Lac ");
if (arr[i + 4] == EndofNumber)
printf("Thousand ");
if (arr[i + 3] == EndofNumber)
printf("Hundred ");
}
printf("\n");
_getch();
return 0;
}``````

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