Exercise 1: Fill in the code as indicated by the comments in bold. Exercise 2: Modify the program above by adding a third structure named results which has two members area and perimeter. Adjust the rectan- gle structure so that both of its members are structure variables. Exercise 3: Modify the program above by adding functions that compute the area and perimeter. The structure variables should be passed as arguments to the functions. CODE #include #include using namespace std; // This program uses a structure to hold data about a rectangle // It calculates the area and perimeter of a box // PLACE YOUR NAME HERE // Fill in code to declare a structure named dimensions that // contains 2 float members, length and width // Fill in code to declare a structure named rectangle that contains // 3 members, area, perimeter, and sizes. area and perimeter should be // floats, whereas sizes should be a dimensions structure variable int main() { // Fill in code to define a rectangle structure variable named box. cout << "Enter the length of a rectangle: "; // Fill in code to read in the length to the appropriate location cout << "Enter the width of a rectangle: "; // Fill in code to read in the width to the appropriate location cout << endl << endl; // Fill in code to compute the area and store it in the appropriate // location // Fill in code to compute the perimeter and store it in the // appropriate location cout << fixed << showpoint << setprecision(2); cout << "The area of the rectangle is " << box.attributes.area << endl; cout << "The perimeter of the rectangle is " << box.attributes.perimeter<< endl; return 0; } Sample Run: Enter the length of a rectangle: 9 Enter the width of a rectangle: 6 The area of the rectangle is 54.00 The perimeter of the rectangle is 30.00
Exercise 1: Fill in the code as indicated by the comments in bold.
Exercise 2: Modify the
Exercise 3: Modify the program above by adding functions that compute the area and perimeter. The structure variables should be passed as arguments to the functions.
CODE
#include <iostream>
#include <iomanip>
using namespace std;
// This program uses a structure to hold data about a rectangle // It calculates the area and perimeter of a box
// PLACE YOUR NAME HERE
// Fill in code to declare a structure named dimensions that // contains 2 float members, length and width
// Fill in code to declare a structure named rectangle that contains // 3 members, area, perimeter, and sizes. area and perimeter should be // floats, whereas sizes should be a dimensions structure variable
int main() {
// Fill in code to define a rectangle structure variable named box.
cout << "Enter the length of a rectangle: ";
// Fill in code to read in the length to the appropriate location
cout << "Enter the width of a rectangle: ";
// Fill in code to read in the width to the appropriate location
cout << endl << endl;
// Fill in code to compute the area and store it in the appropriate // location
// Fill in code to compute the perimeter and store it in the
// appropriate location
cout << fixed << showpoint << setprecision(2);
cout << "The area of the rectangle is " << box.attributes.area << endl;
cout << "The perimeter of the rectangle is " << box.attributes.perimeter<< endl;
return 0; }
Sample Run:
Enter the length of a rectangle: 9
Enter the width of a rectangle: 6
The area of the rectangle is 54.00
The perimeter of the rectangle is 30.00
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