---------------------
Write a C++ program that takes the month (1-12) and year on the command-line,
and prints out a format calendar (in ASCII) for that month.
Read the month and year as command-line args.
Also, flag the following holidays with an asterisk:
July 4 each year (Independence Day)
October 31 each year (Halloween)
December 25 each year (Christmas)
Just incorporate the checks for these directly in your code (i.e. in 'if' statements).
Part of the objective of this exercise is to learn how to formatted printing,
to get the columns aligned.
Part of the challenge of this assignment is figuring out the algorithm
for determining what day of the week any given month starts on.
Here is an example:
./calendar 10 2019
Calendar for October 2019
|---------------------------|
|Sun|Mon|Tue|Wed|Thu|Fri|Sat|
|---------------------------|
| | | 1| 2| 3| 4| 5|
| | | | | | | |
|---------------------------|
| 6| 7| 8| 9| 10| 11| 12|
| | | | | | | |
|---------------------------|
| 13| 14| 15| 16| 17| 18| 19|
| | | | | | | |
|---------------------------|
| 20| 21| 22| 23| 24| 25| 26|
| | | | | | | |
|---------------------------|
| 27| 28| 29| 30| 31| | |
| | | | | * | | |
|---------------------------|
Last time the Dallas Cowboys won the Superbowl was on 1/28/1996 (a Sunday).
./calendar 1 1996
Calendar for January 1996
|---------------------------|
|Sun|Mon|Tue|Wed|Thu|Fri|Sat|
|---------------------------|
| | 1| 2| 3| 4| 5| 6|
| | | | | | | |
|---------------------------|
| 7| 8| 9| 10| 11| 12| 13|
| | | | | | | |
|---------------------------|
| 14| 15| 16| 17| 18| 19| 20|
| | | | | | | |
|---------------------------|
| 21| 22| 23| 24| 25| 26| 27|
| | | | | | | |
|---------------------------|
| 28| 29| 30| 31| | | |
| | | | | | | |
|---------------------------|
Note, you can check your results against the 'cal' command in Linux:
cal 1 1996
January 1996
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
--------------------------------------------------------
Optional:
1. If you are interested, you could also flag holidays with variable
dates, like Easter (second Sunday of May) or Thanksgiving (fourth
Thursday in November).
2. Another challenge is that you might want to make your calendar read in
a file with specific dates to flag, like other holidays, birthdays,
meetings or appointments. You would have to define a file format,
like "<date <description" on each line, and you have to have convert
the date from a text string to month day and year variables.
For example, mycal.txt:
8/27/19 first day of fall semester classes
10/28/19 Bill Gates's birthday
1/28/1996 Last time the Dallas Cowboys won the Superbowl (XXX).
2/2/2020 Superbowl LIV
3. Modify the program to print out the day-of-the-week for any
arbitrary date (3 args). For example, here is the first moon landing:
calendar 7 20 1969
Sunday
...and next Valentine's Day:
calendar 2 14 2020
Friday
