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, ...
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Question 1
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.
double calcPostage(double weight, int zone) {
if (zone >= 1 && zone <= 3) {
return weight * GLOBALMAIL_COST_ZONE_1_TO_3;
} else if (zone >= 4 && zone <= 6) {
return weight * GLOBALMAIL_COST_ZONE_4_TO_6;
} else {
cerr << "Invalid zone provided." << endl;
return 0.0;
}
}
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