Consider the merge step of the merge sort.
a. What is the minimum number of comparisons needed to merge two subarrays each of size n/2?
b. Give a recurrence relation that counts the number of comparisons made in the best case.
c. Make an educated guess at the solution to the recurrence relation.
Consider a collection of Comparable objects that is represented by a chain of linked nodes. Suppose that you want to provide a sort operation for this collection.
a. Implement a private method that merges two sorted chains into one new sorted chain.
b. The method described in Part a could be part of a merge sort of a sorted chain. Describe how you could implement such a sort.
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