Lab 04

Lab Exercises/2023-March/Lab-04/ex-01-shanelka.cpp

@@ -0,0 +1,64 @@
+#include <iostream>
+#include <iomanip>
+
+using namespace std;
+
+struct Circle {
+ float radius;
+};
+
+struct Rectangle {
+ float length;
+ float width;
+};
+
+struct Square {
+ float length;
+};
+
+// function prototype
+float circleArea (struct Circle c);
+float rectArea (struct Rectangle r);
+float squareArea (struct Square s);
+
+// start the main function
+int main () {
+ // create variables
+ struct Circle c1;
+ struct Rectangle rect1, rect2;
+ struct Square squ1;
+
+ float area;
+
+ // assigning values
+ c1.radius = 5;
+
+ rect1.length = 28;
+ rect1.width = 15;
+
+ rect2.length = 7;
+ rect2.width = 3;
+
+ squ1.length = 4;
+
+ // function calling and calculate
+ area = rectArea (rect1) - ((rectArea (rect2) + squareArea (squ1) + circleArea (c1)));
+
+ // display output
+ cout << "Green colour area = " << fixed << setprecision(3) << area << endl;
+
+ return 0;
+}
+
+// function definition
+float circleArea (struct Circle c) {
+ return ((22 / 7.0) * c.radius * c.radius);
+}
+
+float rectArea (struct Rectangle r) {
+ return (r.length * r.width);
+}
+
+float squareArea (struct Square s) {
+ return (s.length * s.length);
+}

Lab Exercises/2023-March/Lab-04/ex-02-shanelka.cpp

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+#include <iostream>
+#include <iomanip>
+
+using namespace std;
+
+struct Circle {
+ float radius;
+};
+
+struct Rectangle {
+ float length;
+ float width;
+};
+
+struct Square {
+ float length;
+};
+
+// function prototype
+float circleArea (struct Circle c);
+float rectArea (struct Rectangle r);
+float squareArea (struct Square s);
+void findPerimeter (float length, float width, float &perimeter);
+void findCost (float perimeter, float costPerUnit, float &totalCost);
+
+// start the main function
+int main () {
+ // create variables
+ struct Circle c1;
+ struct Rectangle rect1, rect2;
+ struct Square squ1;
+
+ float area, perimeter, unitCost, totalCost;
+
+ // assigning values
+ c1.radius = 5;
+
+ rect1.length = 28;
+ rect1.width = 15;
+
+ rect2.length = 7;
+ rect2.width = 3;
+
+ squ1.length = 4;
+
+ // function calling and calculate
+ area = rectArea (rect1) - ((rectArea (rect2) + squareArea (squ1) + circleArea (c1)));
+
+ // display output
+ cout << "Green colour area = " << fixed << setprecision(3) << area << endl;
+
+ findPerimeter (rect1.length, rect1.width, perimeter);
+ cout << "Perimeter of the land = " << fixed << setprecision(3) << perimeter << endl;
+
+ cout << "Enter the cost per unit : ";
+ cin >> unitCost;
+
+ findCost (perimeter, unitCost, totalCost);
+ cout << "Cost = " << fixed << setprecision(2) << totalCost << endl;
+
+ return 0;
+}
+
+// function definition
+float circleArea (struct Circle c) {
+ return ((22 / 7.0) * c.radius * c.radius);
+}
+
+float rectArea (struct Rectangle r) {
+ return (r.length * r.width);
+}
+
+float squareArea (struct Square s) {
+ return (s.length * s.length);
+}
+
+void findPerimeter (float length, float width, float &perimeter) {
+ perimeter = (length + width) * 2;
+}
+
+void findCost (float perimeter, float costPerUnit, float &totalCost) {
+ totalCost = perimeter * costPerUnit;
+}