PROGRAM TO CONVERT DECIMAL TO BINARY

#include "stdio.h"
#include "conio.h"

void main()
{
long num,remain,binary=0,i;
clrscr();
printf("Enter Number: ");
scanf("%ld",&num);
i=1;
while(num!=0)
{
remain=num%2;
binary=binary+remain*i
num=num/2;
i*=10;
}
printf("%d\t",binary);
getch();
}