//=========================================================================
#define PROGRAMMER "SOLUTIONS, NoFrills"
#define PROG_CODE  "soln"
#define COURSE     "ECE-1021"
#define YEAR       (2003)
#define TERM       "Fall"
#define SECTION    (0)
#define ASSIGNMENT "HW #2B"
#define REVISION   (0)
#define TITLE      "Beyond Numeracy"
#define SUBTITLE   "Programming Exercise #4.6"
#define EMAIL      "wbahn@eas.uccs.edu"
#define FILENAME   "02b0soln.txt"
//=========================================================================

// PROBLEM:
//
// Rewrite tha Calendar Program of Section 4.6 so that the User only input
// a year.
//
// To permit printing the calendar on a single 8.5x11 sheet of paper,
// print two months side by side.
//
// The resulting calandar should be printed to the file calendar.dat.
//
// SOLUTION APROACH
//
// The problem doesn't state whether the months are to be printed in
// columns or rows, hence it is our choice to print them as:
//
//      JAN  FEB         JAN  JUL
//      MAR  APR         FEB  AUG
//      MAY  JUN    or   MAR  SEP
//      JUL  AUG         APR  OCT
//      SEP  OCT         MAY  NOV
//      NOV  DEC         JUN  DEC
//
// The existing program prints a calandar as single column of months.
// If we use the second option above, it means that what we really
// need is for the same program to print only half a year - in the exact
// same fashion that it currently does! All we have to do is, on every
// line that is printed, print an equivalent line (on the same line)
// for a second half calendar.
//
// NOTE: The following is not pseudocode for the actual algorithm but
// instead for an "algorithm" that solves the more problem of how to
// get a program that does what we want it to do. Keep in mind that
// the purpose of pseudocode is to establish a clear plan for solving
// the problem at hend. In this case, since we have a starting point
// with a prior program, it is reasonable to describe, in adequate
// detail, the steps that need to be accomplished to modify the program
// to meet the new needs.
//
// The steps to be followed are as follows:
//
// TASK #1: Implement the program as it presently exists in Sec 4.6.
//          The code is available on the course website in the
//          text book section.
// TASK #2: Modify it to require only a year from the yser.
//          Using the formula given in the problem, compute the
//          day_code for Jan 1st and whether it is a leap year.
// TASK #3: Modify it to print a second image shifted right.
//          This should be a simple matter of dublicating some printf()
//          statements.
// TASK #4: Modify it to use a constant number of lines per month.
//          Just need to print a line of blank dates if necessary.
// TASK #5: Modify it to prints only six months in a column.
//          Trivial (should be, anyway).
// TASK #6: Identify which variables must be split between columns.
//          Probably daycode, month, and day - perhaps others.
// TASK #7: Modify it to print the complete calendar.
//          Should just be a matter of using the new variables.
// TASK #8: Modify it to print to a file instead of the screen.
//          Open and check the file and convert all of the printf()
//          statements to fprintf() statements using a search and
//          replace - or perhaps a macro.
// TASK #9: OPTIONAL - pretty up the printout, perhaps to:
/*

 |=======================================================================|
 |                             2006 CALENDAR                             |
 |=======================================================================|
 | January                           | July                              |
 | Sun  Mon  Tue  Wed  Thu  Fri  Sat | Sun  Mon  Tue  Wed  Thu  Fri  Sat |
 |   1    2    3    4    5    6    7 |                                 1 |
 |   8    9   10   11   12   13   14 |   2    3    4    5    6    7    8 |
 |  15   16   17   18   19   20   21 |   9   10   11   12   13   14   15 |
 |  22   23   24   25   26   27   28 |  16   17   18   19   20   21   22 |
 |  29   30   31                     |  23   24   25   26   27   28   29 |
 |                                   |  30   31                          |
 |=======================================================================|
 | February                          | August                            |
 | Sun  Mon  Tue  Wed  Thu  Fri  Sat | Sun  Mon  Tue  Wed  Thu  Fri  Sat |

*/

// A look at the calendar reveals the fact that the month of July
// starts on the same day of the week as the month of January in leap
// years and the day prior in non-leap years. That should make things
// a bit easier.