What is the running time of Mergesort when the input is an array where all record values are equal?

\Theta(n \log n)
  • \Theta(n^2)
  • \Theta(\log n)
  • \Theta(n ^ n)
  • \Theta(n)

Does Mergesort's number of comparisons depend on the particular order of the input array?

No, it does not.