This C program takes a 4-digit integer as input from the user and converts it to its word equivalent. It uses arrays to store the number names from "zero" to "nineteen" and the tens place names. It extracts each digit using modulo and division, then prints the equivalent word for each place value, highest to lowest, to output the full number name. The program runs in a do-while loop, allowing the user to convert multiple numbers by pressing any key or quit by entering 1.

1. By:KAPIL PANDIT
1 | P a g e
/*program to convert 4 digit integer number and display
the word equivalent*/

2. By:KAPIL PANDIT
2 | P a g e
CODE:
#include<stdio.h>
main()
{
int n,i,j,a[5];
char *num[11]={"zero","one","two","three","four","five","six","seven",
"eight","nine",};
char*two[10]={"ten","eleven","twelve","thirteen","fourteen","fiveteen"
,"sixteen","seventeen","eighteen","ninteen"};
char *three[10]={"twenty","thirty","fourty","fifty","sixty","seventy",
"eighty","ninty"};
int ch;
clrscr();
do
{
fflush(stdin);
printf("Enter the 4 digit number:");
scanf("%d",&n);
i=0;
printf("In Word:");
while(n>0)
{
a[i]=n%10;
i++;
n=n/10;
}
j=i-1;
printf("%s thousand ",num[a[j]]);j--;
if(a[j]>0)
{
printf("%s hundred ",num[a[j]]);j--;
if(a[j]>0)
{
if(a[j]>=2)
{
printf("%s ",three[a[j]-2]);j--;
if(a[j]!=0)
printf("%s ",num[a[j]]);j--;
}
else
{
if(a[j]>1||(a[j]==1&&a[j-1]>=0))
printf("%s ",two[a[j-1]]);
else
{
printf("%s ",num[a[j]]);j--;
printf("%s ",num[a[j]]);j--;
}
}

3. By:KAPIL PANDIT
3 | P a g e
}
}
printf("npress any key to continue...............");
printf("or press 1 to exit:");
fflush(stdin);
scanf("%d",&ch);
}while(ch!=1);
getch();
return 0;
}