/* baseChange: Transformation to binary numbers

   Example:

	Enter digit (-1 to end): 1
	Enter digit (-1 to end): 0
	Enter digit (-1 to end): 4
	Enter digit (-1 to end): -1
	Number in decimal: 53
	Smallest digit in decimal notation was 3.
	Number in binary: 00000000000110101
*/

#include <stdio.h>

int BASE=7,
    currDigit,
    numericValue=0, 
    powerOfTen,
    smallDigit,
    powerOfTwo,
    largePowerOfTwo = 65536;

int main (void) {

   printf("Enter digit (-1 to end): "); scanf("%d", &currDigit);

   while (currDigit != -1) {
   	numericValue = BASE * numericValue + currDigit;
   	printf("Enter digit (-1 to end): "); scanf("%d", &currDigit);
   }

   printf("Number in decimal: %d\n", numericValue);
   smallDigit = 10;
   for (powerOfTen = 100000000;
        powerOfTen >= 1;
	powerOfTen = powerOfTen / 10) {
   	    if (numericValue >= powerOfTen &&
	       (numericValue / powerOfTen % 10) < smallDigit)
		    smallDigit = numericValue / powerOfTen % 10;
   }
   printf("Smallest digit in decimal notation was %d.\n", smallDigit);

   printf("Number in binary: ");
   powerOfTwo = largePowerOfTwo;
   while (powerOfTwo >= 1) {
   	printf("%d", (numericValue / powerOfTwo % 2));
	powerOfTwo = powerOfTwo / 2;
   }
   printf("\n");

   return(0);
}

   	Modify the above program to output individual digits
   	of the decimal form (5 and 3 in the example) each on
   	its own line.