# include <stdio.h>

//
//  Program 7.7, Stephen Kochan, Programming in C.
//

int main ( void )
{
  const char baseDigits[16] = {
    '0', '1', '2', '3', '4', '5', '6', '7',
    '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
  int convertedNumber[64];
  long int numberToConvert;
  int nextDigit, base, index = 0;

//  Get the number, and the base, from the user.

  printf ( "Enter the number to be converted: " );
  scanf ( "%ld", &numberToConvert );
  printf ( "Enter the base: " );
  scanf ( "%i", &base );

//  Convert number from decimal to indicated base.

  do 
  {
    convertedNumber[index] = numberToConvert % base;
    ++index;
    numberToConvert = numberToConvert / base;
  } while ( numberToConvert != 0 );

//  Display the results in reverse order.

  printf ( "Converted number = " );

  for ( --index; 0 <= index; --index )
  {
    nextDigit = convertedNumber[index];
    printf ( "%c", baseDigits[nextDigit] ); 
  }
  printf ( "\n" );

  return 0;
}