Is it possible to reassign a new memory address value to a pointer?

Yes, a pointer in C/C++ can be reassigned to a new memory address. A pointer is a variable that stores the address of another variable or memory area. Example:

int a = 5;
int b = 10;
int* ptr = &a;  // ptr points to a
ptr = &b;       // now ptr points to b

Thus, you can change the address that the pointer points to by assigning it a new address.