29. For a binary heap of height 2021, let x be the minimumn possible size, y be the maximum possible size, then (3xty) mod 5
(A) 0
(B) 1
(C)2
(D)
(E) 4
18 After the night club closed, local gangs of youths remained restless and _______ the city streets all night
long.
(A) darned (B) perched (C) roamed (D) parlayed