(a) Suppose that there are only two base cells, {(a1, a2, a3, . . . , a100), (a1, a2, b3, . . . , b100)}, in a 100-
dimensional base cuboid. Compute the number of nonempty aggregate cells. Comment on the storage
space and time required to compute these cells.
Each base cell generates 2100−1 aggregate cells. (We subtract 1 because, for example, (a1, a2, a3, . . . , a100)
is not an aggregate cell.) Thus, the two base cells generate 2×(2100−1) = 2101−2 aggregate cells, however, four of these cells are counted twice. These four cells are: (a1, a2, ∗, . . . , ∗),(a1, ∗, . . . , ∗),(∗, a2, ∗, . . . , ∗),
and (∗, ∗, . . . , ∗). Therefore, the total number of cells generated is 2101 − 6.