======Set Program: Part 2======

=====Overview=====
We will now further extend our set program to do a few of the basic set operations- set union, intersection, and difference.
=====Criteria=====
Write a program that does the following:

  * Presents a menu to the user, enabling the selection of the following options (each option should be in a separate function):
    * Build Set A (Standard Set Building Code)
    * Build Set B (Standard Set Building Code) -- if you code this right, you could do both builds with a single function.
    * Display Set A
    * Display Set B
    * Display Set C (result set)
    * Display All Sets -- again, some optimization could occur so you have fewer than 4 display() functions.
    * Set Union of A and B
    * Set Intersection of A and B
    * Set Difference of A and B
    * Set Difference of B and A
    * Clear Set A
    * Clear Set B
    * Clear Set C
    * Clear All Sets
    * Exit
  * Each option (save for things like exit) will end up calling a function to perform the intended task.
  * Put in code that checks for invalid selections from being made (same data type, just out of range) and notify the user of an invalid choice being made.

=====Assumptions=====
You may develop the program with the following assumptions in mind:

  * Generally, the same assumptions that governed the first part of this program.
  * You are aiming to put different actions in functions.

=====Example Output=====
You resulting program should operate in a manner similar to the following (output doesn't have to exactly match):

<cli>
lab46:~/src/discrete/p06$ ./setprog
Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 2

[Set B] Enter a unique value (-1 to quit): 1
[Set B] Enter a unique value (-1 to quit): 2
[Set B] Enter a unique value (-1 to quit): 4
[Set B] Enter a unique value (-1 to quit): 8
[Set B] Enter a unique value (-1 to quit): -1

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 4

B = { 1, 2, 4, 8 }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 5

C = { }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 1

[Set A] Enter a unique value (-1 to quit): 4
[Set A] Enter a unique value (-1 to quit): 8
[Set A] Enter a unique value (-1 to quit): 16
[Set A] Enter a unique value (-1 to quit): 4
Duplicate Value Detected! Discarding...
[Set A] Enter a unique value (-1 to quit): 32
[Set A] Enter a unique value (-1 to quit): -1

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 3

A = { 4, 8, 16, 32 }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 7

UNION of A and B, result in C

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 5

C = { 1, 2, 4, 8, 16, 32 }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 13

Set C cleared.

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 5

C = { }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 8

Set Intersection of A and B, result in C.

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 5

C = { 4, 8 }

Set Menu
--------
 1. Build Set A
 2. Build Set B
 3. Display Set A
 4. Display Set B
 5. Display Set C
 6. Display All Sets
 7. Set Union of A and B
 8. Set Intersection of A and B
 9. Set Difference of A and B
10. Set Difference of B and A
11. Clear Set A
12. Clear Set B
13. Clear Set C
14. Clear All Sets
 0. Exit

Make a selection (0-15): 0
lab46:~/src/discrete/p06$ 
</cli>

=====Submission=====
Please be sure your program also meets the following criteria:

  * Codebase is documented. You must have comments sprinkled throughout your code.
  * Code is uniformly and optimized for readability in its indentation. I will be evaluating indentation!
  * Your code must compile and run, without warnings or issues, with the above requirements (I may ask for a specific set membership and actions to be taken).
  * The displaying of the set MUST conform to that set notation (note the spacing, the commas, and the **lack** of a comma following the last element).
  * You must use functions, passing and returning any necessary data as appropriate.
  * Your working, compilable code should be added/commit/pushed to your repository located in the **~/src/discrete/submit/p06/** directory.