19. Pseudo keys are in the range 0 to 200,000 and a maximum of 9000 nodes will be stored in a nonperfect hashed data structure. Give the size of the primary storage area array (number of elements) that will produce the optimum loading factor. The number elements would be 12,007.

20. Give the density of the structure described in Exercise 19 assuming the node width is:

a) 10 bytes

b) 200 bytes