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Which of the following is called the “ultimate planar convex hull algorithm”?

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Which of the following is called the “ultimate planar convex hull algorithm”?

(a) Chan’s algorithm

(b) Kirkpatrick-Seidel algorithm

(c) Gift wrapping algorithm

(d) Jarvis algorithm

I had been asked this question in an interview for job.

This is a very interesting question from Computational Geometry in chapter Computational Geometry of Data Structures & Algorithms II

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Correct choice is (b) Kirkpatrick-Seidel algorithm

Easy explanation - Kirkpatrick-Seidel algorithm is called as the ultimate planar convex hull algorithm. Its running time is the same as that of Chan’s algorithm (i.e.) O(n log h).

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