class A {

      public:
      static int count;   // Maybe set this to static?


      A() {                // "2) It doesn't "manage" any pointers - nor does it take pointers as arguments." ... so no arguments here...?
       count++;           // "The two constructors need to increase the count of objects"
      }

      A(A &p)
      {
        count++;          // "The two constructors need to increase the count of objects"
      }

      A& operator=(const A &p)
      {
        if (&p != this) {
            // ?? count is static, so just increase it?
            count++;
        }
        return *this;
      }

      ~A() {
        count--;           // "the destructor needs to decrease [the count of objects]."
        if (count == 0)
        {
          // ?? No pointers taken as an argument, so I have nothing to delete
        }
      }

    };

    int A::count = 0;