Basic Practice Problems in C++

#include <iostream>Copy Code
#include <string>

class Book {
public:
std::string title;
std::string author;
int publicationYear;
};

int main() {
Book book1;
book1.title = "The Catcher in the Rye";
book1.author = "J.D. Salinger";
book1.publicationYear = 1951;

Book book2;
book2.title = "To Kill a Mockingbird";
book2.author = "Harper Lee";
book2.publicationYear = 1960;

std::cout << "Book 1: " << book1.title << " by " << book1.author << " (" << book1.publicationYear << ")\n";
std::cout << "Book 2: " << book2.title << " by " << book2.author << " (" << book2.publicationYear << ")\n";

return 0;
}

#include <iostream>Copy Code
class Shape {
public:
virtual double calculateArea() const = 0;
virtual double calculatePerimeter() const = 0;
};

class Circle : public Shape {
private:
double radius;

public:
Circle(double r) : radius(r) {}

double calculateArea() const override {
return 3.14 * radius * radius;
}

double calculatePerimeter() const override {
return 2 * 3.14 * radius;
}
; };

class Rectangle : public Shape {
private:
double length;
double width;

public:
Rectangle(double l, double w) : length(l), width(w) {}

double calculateArea() const override {
return length * width;
}

double calculatePerimeter() const override {
return 2 * (length + width);
}
; };

int main() {
Circle circle(5.0);
Rectangle rectangle(4.0, 6.0);

std::cout << "Circle - Area: " << circle.calculateArea() << ", Perimeter: " << circle.calculatePerimeter() << std::endl;
std::cout << "Rectangle - Area: " << rectangle.calculateArea() << ", Perimeter: " << rectangle.calculatePerimeter() << std::endl;

return 0;
}