Implement Person interface and concrete classes, random greeting logi…

main.cpp

@@ -1,6 +1,57 @@
 #include <iostream>
+#include <string>
+#include <vector>
+#include <memory>
+#include <random>
 
-int main() {
-    std::cout << "Hello, World!" << std::endl;
+class Person {
+public:
+    virtual std::string getFirstName() const = 0;
+    virtual ~Person() = default;
+};
+
+class Moe : public Person {
+public:
+    std::string getFirstName() const override { return "Moe"; }
+};
+
+class Larry : public Person {
+public:
+    std::string getFirstName() const override { return "Larry"; }
+};
+
+class Curley : public Person {
+public:
+    std::string getFirstName() const override { return "Curley"; }
+};
+
+class Shemp : public Person {
+public:
+    std::string getFirstName() const override { return "Shemp"; }
+};
+
+int main(int argc, char* argv[]) {
+    (void)argc; (void)argv;
+    std::vector<std::unique_ptr<Person>> people;
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_int_distribution<> num_dist(3, 10);
+    std::uniform_int_distribution<> type_dist(0, 3);
+    int num_people = num_dist(gen);
+    for (int i = 0; i < num_people; ++i) {
+        switch (type_dist(gen)) {
+            case 0: people.push_back(std::make_unique<Moe>()); break;
+            case 1: people.push_back(std::make_unique<Larry>()); break;
+            case 2: people.push_back(std::make_unique<Curley>()); break;
+            case 3: people.push_back(std::make_unique<Shemp>()); break;
+        }
+    }
+    for (const auto& person : people) {
+        std::cout << "Hello, " << person->getFirstName() << "!" << std::endl;
+    }
     return 0;
-} 
+} 
+
+void print_hello_world() {
+    std::cout << "Hello, World!" << std::endl;
+}