Problem (a) ----------- 41.46924185752869 s for slow build dictionary 2.6200079917907715 s for fast build dictionary using the algorithm described in HW5 handout I compared the dictionaries build using the two algorithms to verify that they were identical. This is a good way for you to check correctness of your solutions. Problem (b) ----------- I ran computeWordFrequencies on "war.txt" and observed: 56.75156617164612 s for slow computeWordFrequencies 5.804067134857178 s for computeWordFrequencies using sorted masterList/binarySearch 2.5957086086273193 s for computeWordFrequencies using a dictionary I compared the words and frequencies produced by my solution to HW4 with the words and frquencies produced by the new, dictionary-based implementation and verified that these were identical. This is a good way to check correctness of your solution.