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What is the auxiliary space requirement of Tim sort?

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in Data Structures & Algorithms II by (111k points)
What is the auxiliary space requirement of Tim sort?

(a) O(n)

(b) O(n log n)

(c) O(n^2)

(d) O(log n)

This question was posed to me by my school principal while I was bunking the class.

Query is from Sorting in portion Sorting of Data Structures & Algorithms II

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The correct choice is (a) O(n)

Best explanation: Tim sort is a hybrid of merge sort and insertion sort. It requires to merge sorted runs which require a third array of the size equal to the sum of the two runs. So in worst case the auxiliary space requirement will be O(n).

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