Exam (elaborations)
COS1512 Assignment 2 2024 (199828) - DUE 12 July 2024
- Institution
- University Of South Africa (Unisa)
COS1512 Assignment 2 2024 (199828) - DUE 12 July 2024 QUESTIONS WITH ANSWERS
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COS1512ASSIGNMENT 2 2024
(199828) - DUE 12
JULY 2024
[Company address]
,COS1512 Assignment 2 2024 (199828) - DUE 12 July 2024
Question 1
Peter wants to send a box containing a painting to London. The Post Office sends parcels to London via
GlobalMail or DHL. If GlobalMail is chosen, the cost is R108 per kg if the parcel goes to zone 1 to 3 in
London, and R130 per kg if the parcel goes to zone 4 to 6. If DHL is chosen, the actual weight is
compared to the volumetric weight, and whichever is the higher weight, is used in the calculation. The
volumetric weight is calculated by the formula (length * width * height) / 5000, where length, width and
height is the size of the box in cm. The cost per kg for DHL is R70. Write a program that will calculate
the price to be paid for sending a parcel to London. The program must use two overloaded functions,
each named calcPostage. The user must be asked if he wants to use GlobalMail or DHL. Define a char
variable and ask the user to input „d‟ for DHL or „g‟ for GlobalMail. If he chooses GlobalMail, the zone
must be requested. The program must validate that the zone is between 1 and 6. If he chooses DHL, the
length, width and height of the box must be requested. The first function will receive two parameters, one
of type double representing the weight of the parcel, and one of type int, representing the zone. The
second function will receive four parameters of type double, representing the actual weight, and the
length, width and height of the box in cms. The second function will first determine whether the actual
weight or the volumetric weight is the highest, before calculating the cost. Both functions will return the
cost in a variable of type double. The main function should then display the total cost. Define const
variables where applicable. 3
To solve this problem, we'll create a C++ program that calculates the cost of sending a parcel to London using
either GlobalMail or DHL. The program will use overloaded functions named calcPostage to handle the
calculations for each service.
Here’s how you can implement the program:
1. Define constants for the cost per kg for each service.
2. Implement the calcPostage function for GlobalMail, which takes the weight and zone as parameters.
3. Implement the calcPostage function for DHL, which takes the actual weight, length, width, and height as
parameters.
4. Implement the main function to get user input, validate the input, and call the appropriate calcPostage
function.
Here is the complete C++ program:
, cpp
Copy code
#include <iostream>
using namespace std;
const double GLOBALMAIL_COST_ZONE_1_TO_3 = 108.0;
const double GLOBALMAIL_COST_ZONE_4_TO_6 = 130.0;
const double DHL_COST_PER_KG = 70.0;
const int ZONE_MIN = 1;
const int ZONE_MAX = 6;
const double VOLUMETRIC_DIVISOR = 5000.0;
// Function to calculate postage for GlobalMail
double calcPostage(double weight, int zone) {
if (zone >= ZONE_MIN && zone <= 3) {
return weight * GLOBALMAIL_COST_ZONE_1_TO_3;
} else if (zone >= 4 && zone <= ZONE_MAX) {
return weight * GLOBALMAIL_COST_ZONE_4_TO_6;
} else {
return 0.0; // Invalid zone
}
}
// Function to calculate postage for DHL
double calcPostage(double actualWeight, double length, double width, double height) {
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