New and Delete using pointers

Im tryng to understand if the following code actually deletes an object from memory

during ' delete z ' what is actually deleted? does the dynamicaly created integer x get deleted? does y and z get deleted also?

Thanks!

Ive run the program and different values get output when i cout x y and z

include

using namespace std;

int main() {

int* x = new int; *x=1;

int* y = x; int* z = y;

delete z;

return 0; }

im assuming the variable x is no longer on the heap?