Provide the EXACT C++ line of code necessary to return the heap-dynamic variable ptr to the operating system.

Full question:

Provide the EXACT C++ line of code necessary to return the heap-dynamic variable ptr to the operating system.

Pokemon *ptr;

ptr = new Pokemon[6];

delete ptr;

Explanation:

The command in the answer above deallocates memory(preventing memory leaks) and returns control to the operating system.

The command in the question dynamically allocates memory to the the heap(dynamically allocated memory is called heap) while the program is running(different from statically allocated memory that allocates before program compiles). When the variable is no longer needed, deallocation occurs using the command in our answer where the variable is deleted using the pointer(keeps track of dynamic variables).