add example for "default constructor, copy constructor, destructor, if you need one you'll need all"

add smart pointer
add pointer pointer

CPlusPlus/Classes/ICompareable.h

@@ -1,9 +1,15 @@
 #pragma once
 
+// only for presentation
+#include <iostream>
+
 class ICompareable
 {
 public:
-	virtual ~ICompareable() {}
+	// only for presentation
+	ICompareable() { std::cout << "Create IComparable" << std::endl; }
+
+	virtual ~ICompareable() { std::cout << "Destroy IComparable" << std::endl; }
 
 	virtual int Compare(ICompareable* other) = 0;
 };