Data Structures Algorithms-II MCQs

Page No. 58

What is the worst case complexity of quick hull?


aO(N)


bO(N log N)


cO(N2)


dO(log N)


View Answer O(N2)

What is the average case complexity of a quick hull algorithm?


aO(N)


bO(N log N)


cO(N2)


dO(log N)


View Answer O(N log N)

How many approaches can be applied to solve quick hull problem?


a1


b2


c3


d4


View Answer 2

What is the other name for quick hull problem?


aconvex hull


bconcave hull


cclosest pair


dpath compression


View Answer convex hull

___________ is a method of constructing a smallest polygon out of n given points.


aclosest pair problem


bquick hull problem


cpath compression


dunion-by-rank


View Answer quick hull problem

Chan’s algorithm can be used to compute the lower envelope of a trapezoid.


atrue


bfalse


ceither A. or B.


d None of these


View Answer true

Which of the following factors account more to the cost of Chan’s algorithm?


acomputing a single convex hull


blocating points that constitute a hull


ccomputing convex hull in groups


dmerging convex hulls



Which of the following statements is not a part of Chan’s algorithm?


aeliminate points not in the hull


brecompute convex hull from scratch


cmerge previously calculated convex hull


dreuse convex hull from the previous iteration



What is the running time of Hershberger algorithm?


aO(log n)


bO(log n)


cO(log n)


dO(log h)


View Answer O(log n)

Which of the following algorithms is the simplest?


aChan’s algorithm


bKirkpatrick-Seidel algorithm


cGift wrapping algorithm


dJarvis algorithm


View Answer Chan’s algorithm

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