Areason to overload the is to allow you to write classes that have array-like behaviors.

I believe the answer is: square brackets [ ] operator

in C++, square brackets [ ] operator could be used to outputting an array in a class constructor that  declared using pointers. The constructor should allocate an array and copy values from the pointer argument and should be returned in the element in the array you allocated.

The median is 4 because 2 x’s out 9, 3 x’s out 7, 3 x’s out 5, and 4 is the only remaining number.