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What is the worst case complexity of quick hull?

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What is the worst case complexity of quick hull?

(a) O(N)

(b) O(N log N)

(c) O(N^2)

(d) O(log N)

I have been asked this question in a job interview.

The doubt is from Computational Geometry in section Computational Geometry of Data Structures & Algorithms II

1 Answer

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Best answer
Right option is (c) O(N^2)

Best explanation: The worst case complexity of quickhull algorithm using divide and conquer approach is mathematically found to be O(N^2).

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