MCX1 Assignments for 2001 semester

EXAMPLE 2
Finding an average  
Enter score (-77 to quit): -77

No basis for average

Due Fri, Oct. 19: 
1. Compile and run q7_8.cpp
2. Write program that achieves the output shown in these  two examples:

EXAMPLE 1                                                   EXAMPLE 2
Finding an average                                      Finding an average      
Enter number of scores: 2                            Enter number of scores: 0
Enter score 1: 100                                        
Enter score 2: 99                                        No basis for average
                                                                             
total = 199
average = 99.5

 
Due Thurs, Oct. 18: 
0. Solution for HW due Tues 10.16 at ascending.cpp
1. Read Hubbard sects 4.1 (while loops) and 4.2 (the break statement and exit function).
2. Review questions 4.1 thru 4.5. Hint concerning 4.5: The problem is a logic error. Find it and correct it.
3. Problem 4.7 (short program utilizing while loop)

Due Tues, Oct. 16: (Test moved back to Weds--See bulletin above)
0. Test postponed until Weds due to scheduling problem on Tues
1. Read Hubbard sects 2.8 (compound assignment), 2.10 (type casting), and 2.14 (scope).
2. Complete short program that prints the values of x, y, z in ascending order x <= y <= z. Do
     not use assignment in your answer

    int main() {
         int x, y, z;
         cout << "Enter x, y, z (spaces between values): ";
         cin >> x >> y >> z;
          //YOUR CODE:

         return 0;
    }
       
3. Complete fragment that swaps values in x and y without additional variables:
    
       int x, y;
       cin >> x >> y;
       x = x + y;
   
Due Mon, Oct. 15: (Do Friday's HW first)
0. Test Tuesday (see MCX1 Bulletins above)
1. In ten minutes or less, try to debug debugQuad.cpp as per the instructions given therein. The
     program contains one run-time (logic) error .
2. Modify the triangle classification program in this manner:
    1. Use C++ decision-making facilities  to sort a, b, and c in ascending order ( a <= b <= c)
        before you classify triangle
    2. Utilize the fact that no length is greater than c to simplify the classification by angle
         part of your program.
         FOR EXAMPLE: If you know that no length is greater than c, the condition for determining
         whether the lengths form a right triangle can be reduced to  (a*a + b*b == c*c) !!!
3. Do Hubbard Review Questions #3.1--3.5, 3.8--3.10, 3.11a--c, 3.12a, and 3.14. These questions
    should  help you prepare for test on Tuesday.

Due Fri, Oct. 12:
0. Solution to HW due Thurs Oct 10 at triClass.cpp
1. Modify triangle classification program to enable it to classify the number and nature of the roots
   of ax² + bx + c = 0 and to print out imaginary roots using this test data (or your own) to validate your
   solution. (Bring source code)

   SAMPLE OUTPUT:
    Enter a, b, c (spaces between values): 2 1 -6

    SS = {-2, 1.5}
    2 real and rational roots

SS = {-1.5, 2}

Due Tues, Oct. 9 :
Using an if/else if//else if/else decision structure, write a grade conversion program that converts a numerical grade to a letter grade WITHOUT using logical operators &&, ||, or !

1. SAMPLE OUTPUT:
_____________________________________________________________
Grade Conversion Program

Enter numerical grade: 91
Letter grade is: A
_____________________________________________________________
2. SPECIFICATIONS

    RANGE              LETTER GRADE
  x > 100                         Invalid
90 <= x <= 100                       A
80 <= x < 90                         B
70 <= x < 80                         C
65 <= x < 70                         D
  -1 < x < 65                         F
    x = -1                            Z (Medically excused)

Due Fri, Oct. 5  (do Thurs assignment first)
1. Read Hubbard sects 3.1 thru 3.5 or Deitel sects 2.4 thru 2.6
2. Use  short program that states whether or not a number is:
       a. positive or not positive
       b. an integer or not an integer
       c. has absolute value less than 10 or greater than or equal to 10
   Do __not__ use &&, ||, or ! operators to implement your solution
   Bring your source program to class.
-----------------------------------------------------------------------------------------------------------------------------
     EXAMPLE:    Enter x: 4.1                  Enter x: -22
            4.1 is positive              -22 is not positive
            4.1 not an integer           -22 is an integer
            |4.1| < 10                   |-22| < 10 is false
----------------------------------------------------
3. Write short program that rounds non-negative integer to nearest 10 and nearest 100
     EXAMPLE:     7538 to nearest 10 = 7540 and 7538 to nearest 100 = 7500
                               7583 to nearest 10 = 7580 and 7583 to nearest 100 = 7600
   Do _not_ use if statements to solve this problem!!  
    Bring your source program to class.

Due Thurs, Oct. 4  (do Weds assignment first)
Write short program that finds minimum number of total coins required to realize the given $ amount.
Do this in terms of quarters, dimes, nickels, pennies. Do __not__ use Susan B. Anthony dollar coins!!
Bring your source program to class.
SAMPLE OUTPUT:
--------------------------------------------------------------------------------
Finding minimum number of total coins to realize $ amount

Enter $ amount: 1.68

quarters = 6
dimes = 1
nickels = 1
pennies = 3

Total # of coins = 11
-------------------------------------------------------------------------
    
Due Weds, Oct. 3 
0. Dev-C++ instructions: Building simple programs and Setting Up Dev-C++ for the AP classes  USE THEM!!
1. Read Hubbard sects 5.1-5.2 (focus on sqrt, pow, ceil, floor, fabs)
2. Write program that uses quadratic formula to solve quadratic equations.
     Bring your source program to class.
SAMPLE OUTPUT:
--------------------------------------------------------------------------------
Using quadratic formula to solve ax^2 + bx + c = 0

Enter a: 1
Enter b: 3
Enter c: –28

x1 = 4
x2 = –7
-------------------------------------------------------------------------------------
Test Data:
    1. x² + 3x – 28 = 0   {4, –7}                                
    2. x² + 5x  = 0  {0, –5}
    3. 2x² + x – 6 = 0  {–2, 1.5}        
    4. 4x² – 36x  + 81= 0  {4.5, 4.5}
    5. 4x² – 100= 0  {–5, 5}
    6. x² – 2 = 0  {–1.414213, 1.414213}
    7. x² + 1 = 0   How does your system respond to this data?

 Due Mon, Oct. 1  (If you borrowed a CD, please return it on Monday, with an additional copy if possible!!)
1. Read Hubbard sects 2.10--2.13 and answer Review Questions 2.1--2.3 (on p. 32)
  OR Deitel & Deitel p. 79, 167--168.
For #2 recall these formulas:  a. C = 2pr    b. A = pr²
2. Write two C++ programs as specified below. Let p = 3.14 for the sake of validating your programs easily
    a. A program that finds the circumference of a circle given its radius.
    b. A program that finds the circumference of a circle given its area.
   Bring your source programs to class.
Due Fri, Sept. 28
1. Read Hubbard sects 2.1, 2.2, 2.4 through 2.7 and 2.9 OR Deitel & Deitel 1.20, 1.21, and 1.22
2. Fill out one of the two blank Developement Cycle flowcharts you received in the Development Cycle handout.
   If you lost the handout, print it out at Development Cycle handout
Due Mon, Sept. 24
1. If you weren't informed about HW assignment due Thurs Sept 20, complete it as specified at Previous HW
2. If you completed the assignment, start reading 1st few sections of Deitel & Deitel's Chapter 2
3. Consider downloading Cygwin for Windows-based computers with decent connection.
4. For Mac and Windows systems: Consider Metrowerks CodeWarrior LE Version 2.0 (Learning Edition)
Due Thurs, Sept. 20
1. Read Hubbard pp. 5-9; On p. 9 answer Review Problem #1.1 thru 1.10
2. Read Chapter 1 of C++:How to Program at your local B&N or Borders or read it online at Chapter 1
    a. Take Chapter 1 True or False online quiz and submit it for a grade at that website. Request that result
         be emailed to you.
    b. Take Chapter 1 Matching online quiz and submit it for a grade at that website. Request that result
         be emailed to you.
    The results of the quizzes will be known only to you and the C++:How to Program website!!   
    When you submit your True/False or Matching answers for the quizzes at the C++:How to Program website,
     your request may be refused. If so, try later. Submit a quiz with NO answers before you take the trouble to enter any! 
Due Mon, Sept. 17 Start on Thursday's assignment as soon as you can!!
1. Read Hubbard pp. 1-5 (Up to section 1.5)
2. Try downloading Cygwin if you don't have a C++ compiler and you do have a decent connection.
3. See Homework assignments for previous assignments.
Due Tues, Sept. 11
1. Review class notes on directory operations in Linux
2. Check Monday's assignment for last-minute additions that may have been made after you visited it (mea culpa).
Due Mon, Sept. 10
1. In Case Study document: 1. Read Introduction and Background (p. 6) , and pp. 7-12
2. Proceed with downloads listed under Course requirements below.
3. Purchase Purchase Hubbard's Programming with C++, 2nd edition as soon as possible.
4. Review Essential Emacs and Linux commands.
Due Thurs, Sept. 6
1. Print (don't download)  Case Study document: Part I  (just Part I) and read it.
2. Proceed with downloads listed under Course requirements below.
3. Purchase Purchase Hubbard's Programming with C++, 2nd edition as soon as possible. (It goes out of stock quickly)

Course requirements:
1. Purchase Hubbard's Programming with C++, 2nd edition. (In Schaum's Outline series)
2. Download Case Study document
3. Download AP class files and files for Part 1 of the Case Study
4. Read Part 1 of the Case Study and complete all exercises
5.  By November 1: purchase Litvin's Be Prepared for the AP Computer Science Exam

Useful sections in Programming With C++, 2nd Edition
     1. functions in math.h: Listing and description, p. 89
     2. ASCII codes: Includes review of escape character and escape sequences, p. 342
     3. C++ operators: Listing, with descriptions, in order precedence, p. 351
     4. C and C++ functions: Listing and description of the basic ones, p. 396
         Somewhat misleadingly titled "Standard C Library", the section also includes functions unique to C++.