W7 Q1

main.cpp

@@ -2,100 +2,41 @@
 #include <random>
 #include <chrono>
 
-using string = std::string;
+class A {
-void ignoreTillLineEnd();
+public:
-string promptfs(string);
+    A() {
-int promptfi(string);
+        std::cout << "Class A Created\n";
-string guessRank(int);
+    }
+    ~A() {
+        std::cout << "Class A Destroyed\n";
+    }
+};
+
+class B {
+public:
+    B() {
+        std::cout << "Class B Created\n";
+    }
+    ~B() {
+        std::cout << "Class B Destroyed\n";
+    }
+};
+
+class C : public A {
+    B b{};
+public:
+    C() {
+        std::cout << "Class C Created\n";
+    }
+    ~C() {
+        std::cout << "Class C Destroyed\n";
+    }
+};
 
 int main()
 {
-    std::mt19937 rand {std::random_device{}()};
+    A v{};
-    std::uniform_int_distribution clamp {1, 100};
+    B w{};
-    string name {promptfs("Enter your name:")};
+    C x{};
-    std::cout << "Hello " << name << ", welcome to guess the number.\n";
-    int guesses {};
-    int num {clamp(rand)}, ent {};
-    do {
-        if (guesses++ > 0) {
-            if (ent > num)
-                std::cout << "You Guessed Too High!\n";
-            else
-                std::cout << "You Guessed Too Low!\n";
-        }
-        ent = promptfi("Enter your guess:");
-    }
-    while (num != ent);
-    std::cout << "Well done " << name << ", you guessed correctly!\n";
-    std::cout << "You took " << guesses << " guesses, rank " << guessRank(guesses) << " .\n";
     return 0;
 }
-
-void ignoreTillLineEnd() {
-    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
-}
-
-string promptfs(string msg) {
-    bool once {};
-    string toret {};
-    do {
-        if (once) {
-            std::cin.clear();
-            ignoreTillLineEnd();
-            std::cout << "Input Failure!\n";
-        }
-        std::cout << msg << "\n";
-        std::cin >> toret;
-        once = true;
-    }
-    while (std::cin.fail());
-    ignoreTillLineEnd();
-    return toret;
-}
-
-int promptfi(string msg) {
-    bool once {};
-    int toret {};
-    do {
-        if (once) {
-            std::cin.clear();
-            ignoreTillLineEnd();
-            std::cout << "Input Failure!\n";
-        }
-        std::cout << msg << "\n";
-        std::cin >> toret;
-        once = true;
-    }
-    while (std::cin.fail());
-    ignoreTillLineEnd();
-    return toret;
-}
-
-string guessRank(int g) {
-    switch (g) {
-    case 0:
-        return "U";
-    case 1:
-        return "A^";
-    case 2:
-        return "A*";
-    case 3:
-        return "A";
-    case 4:
-    case 5:
-        return "B";
-    case 6:
-    case 7:
-        return "C";
-    case 8:
-    case 9:
-    case 10:
-        return "D";
-    case 11:
-    case 12:
-    case 13:
-        return "E";
-    default:
-        return "F";
-    }
-}