American University of SharjahCollege of EngineeringDept of Computer Science & Engg P. O. Box 26666Sharjah, UAE | | Instructors: Dr. Tamer Shanableh Lab Instructor: Ms. Praveena Kolli OfficeLIB022- H Phone: 971-6-5152352 e-mail: pkolli@aus.edu Semester: Fall 2012 |

CMP 120L– Introduction to Computer Science I Lab – Section 1
Lab 2

1. Write a C++ program that declares an integer x and initializes it to 2. The program then computes and prints the following operations. Please use the operators shown in the screen to modify the value of x.

2. Write a program which takes the number of days as input and prints the equivalent number of years, months and days. Assume 365 days per year, 30 days per month.
Example: 400 days => 1 year, 1 month and 5 days.

3. Write a program which reads an integer value and checks whether the entered number is a multiple of 3 or not.

4. Salesmen get a commissions based on their sales according to the following rules:

Sales amount | Commission Percentage | < 1000 | 0% | 1000 to 5000 | 3% | 5001 to 10000 | 5% | > 10000 | 10% |

Draw a flowchart of a program that: * Asks the user for his id and the sales amount * Calculates the commission amount based on the percentage table given above * Displays the commission and total.
Write the program and test it. Use if-else-if.

5. Write a program that determines the quadrant in which a point lies in the Cartesian plane or on the x-axis or on the y-axis or at the origin. y axis

QII QI x axis

QIII QIV

Your program reads the input co-ordinates x and y and displays the result as follows.
Hint: Use if-else-if statements and logical operators.
Quadrant positions: Conditions | X value | Y value | Example: Output to be displayed | Origin | x==0 | Y==0 | (0,0) lies on the origin | On the y-axis | x==0 | Y !=0 | (0,2.5) lies on the y-axis | On the x-axis | x!=0 | Y==0 | (5.6,0) lies on the x-axis | Quadrant I | x>0 | y>0 | (2.2,3.4) is in Quadrant I | Quadrant II | x<0 | y>0 | (-1.2,3.0) is in Quadrant II | Quadrant III | x<0 | Y<0 | (-1.0,-2.5) is in Quadrant III | Quadrant IV | x>0 | Y<0 | (6.0,-4.5) is in Quadrant IV |

Sample Inputs & Outputs:
Please enter the x co-ordinate and y co-ordinate
-1.0 -2.5
(-1.0,-2.5) is in quadrant 3

Please enter the x co-ordinate and y co-ordinate
0.0 4.8
(0.0, 4.8) lies on the y axis

Please enter the x co-ordinate and y co-ordinate
4.2 0.0
(4.2, 0.0) lies on the x axis

Please enter the x co-ordinate and y co-ordinate
2.2 3.2
(2.2, 3.2) is in quadrant 1