ravesli/lesson_68/main.cpp

/*
 * main.cpp
 *
 *  Created on: 13 сент. 2021 г.
 *      Author: alexander
 */
#include <iostream>
#include <string>

int calculate(int a, int b, char c)
{
    switch (c)
    {
        case ('+'):
            return a + b;
        case ('-'):
            return a - b;
        case ('*'):
            return a * b;
        case ('/'):
            return a / b;
        case ('%'):
            return a % b;
        default:
            exit(0);
    }
}

void exercise_1()
{
    std::cout << "Введите первое число: ";
    int a;
    std::cin >> a;
    std::cout << "Введите второе число: ";
    int b;
    std::cin >> b;
    std::cout << "Введите символ операции: ";
    char c;
    std::cin >> c;

    std::cout << a << ' ' << c << ' ' << b << " = " << calculate(a, b, c)
            << std::endl;
}

enum class Animal
{
    PIG, CHICKEN, GOAT, CAT, DOG, OSTRICH
};

std::string getAnimalName(Animal &a)
{
    switch (a)
    {
        case Animal::PIG:
            return "pig";
        case Animal::CHICKEN:
            return "chicken";
        case Animal::GOAT:
            return "goat";
        case Animal::CAT:
            return "cat";
        case Animal::DOG:
            return "dog";
        case Animal::OSTRICH:
            return "ostrich";
        default:
            exit(0);
    }
}

int printNumberOfLegs(Animal &a)
{
    switch (a)
    {
        case Animal::PIG:
        case Animal::CAT:
        case Animal::DOG:
        case Animal::GOAT:
            return 4;
        case Animal::CHICKEN:
        case Animal::OSTRICH:
            return 2;
        default:
            exit(0);
    }
}

void exercise_2()
{
    Animal cat(Animal::CAT);
    Animal chicken(Animal::CHICKEN);

    std::cout << "A " << getAnimalName(cat) << " has " << printNumberOfLegs(cat) << " legs." << std::endl;
    std::cout << "A " << getAnimalName(chicken) << " has " << printNumberOfLegs(chicken) << " legs." << std::endl;
}

int main()
{
    exercise_1();
    exercise_2();

    return 0;
}