COS1512
Assignment 2 2024
(199828) - DUE 12
July 2024
QUESTIONS WITH DETAILED ANSWERS
,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
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