Problem 4 - BST Storage

Trees are particularly annoying to Professor Plum. He likes to fly kites in the center of campus, but the wind keeps blowing his kites into the trees. Professor Plum has spent enough time observing trees to notice that some are taller than others. Professor Plum often teaches Data Structures so he knows that the same thing can happen in binary search trees (BSTs). Recall that for each node in