lesson_68

lesson_68/main.cpp

@@ -0,0 +1,104 @@
+/*
+ * 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;
+}
+