DCS2101 - Week 12 (Practical Applications 2)

What does a pointer variable store?

Which symbol is used to access the value stored at the address pointed by a pointer?

What is the output of the following code?

int x = 10;

int *p = &x;

cout << *p;

What will happen if you dereference a null pointer?

What is the main purpose of using pointers in tree data structures?

Which traversal visits nodes in the order: Left → Root → Right?

Which traversal uses a queue instead of recursion or a stack?

In a tree, the nodes without any child are called:

What does the pointer root typically point to in a binary tree?

In C++, when creating a new node dynamically, what statement is used?

What happens if you forget to delete a dynamically allocated node?