In a _____ tree, null pointers are replaced with pointers to their successor nodes.

Write the code fragment to delete the node that the reference variable curr references in a circular doubly linked list?

What will be an ideal response?

In the following statement that begins a For…Next loop, what is the purpose of the Step clause?

For intX = 1 to 100 Step 5 a. It causes intX to be initialized to 5 when the loop begins. b. It causes the loop to end when intX is equal to 5. c. It causes intX to be incremented by 5 each time the loop repeats. d. It causes intX to be decremented by 5 each time the loop repeats.