Description
QUESTION 1
1.  Write a function to output an arbitrary double number (which might be negative) using only printDigit for I/O.
QUESTION 2
1.   Order the following functions by growth rate:
QUESTION 3
1.  Write a code snippet to swap two adjacent elements by adjusting only the links (and not the data) using a singly linked list.
QUESTION 4
1.   Using the figure below, answer the following questions.
·        Which node is the root?
·        Which nodes are the leaves?
·        For the whole tree, what is the depth?
QUESTION 5
1.   For each node in the tree blow, answer the following questions.
·        Name the parent node.
·        Name the children.
·        List the siblings.
·        Compute the depth.
·        Compute the height.
