int main()
{
int n, c, k;
printf("Enter an integer in decimal number system: ");
scanf("%d", &n);
printf("%d in binary number system is: ", n);
for (c = n; c > 0; c = c/2)
{
k = c % 2;//To
k = (k > 0) ? printf("1") : printf("0");
}
getch();
return 0;
}