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COS1512 Assignment 3 2024 (160814) - DUE 23 August 2024
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COS1512 Assignment 3 2024 (160814) - DUE 23 August 2024 QUESTIONS AND ANSWERS
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[Date]COS1512 Assignment
2 2024 (199828) -
DUE 12 July 2024
QUESTIONS AND 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
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
}
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