Question: Exercise 7 (a) (3 points) Let A be an array with n distinct integer elements. Let ALGOA be an arbitrary algorithm that needs to find

Exercise 7 (a) (3 points) Let A be an array with

Exercise 7 (a) (3 points) Let A be an array with n distinct integer elements. Let ALGOA be an arbitrary algorithm that needs to find a pair of elements from A such that the elements sum to k. You may assume ALGOA can always find such a pair. Explain using the number of leaves in a decision tree why ALGOA must take 12(log n) time in the worst-case. Make sure that in your answer you explain how many leaves the decision tree has, how this affects the decision tree, and why ALGOA must have (log n) worst-case time. Exercise 7 (a) (3 points) Let A be an array with n distinct integer elements. Let ALGOA be an arbitrary algorithm that needs to find a pair of elements from A such that the elements sum to k. You may assume ALGOA can always find such a pair. Explain using the number of leaves in a decision tree why ALGOA must take 12(log n) time in the worst-case. Make sure that in your answer you explain how many leaves the decision tree has, how this affects the decision tree, and why ALGOA must have (log n) worst-case time

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