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AP CSP Practice Test – Unit 10 Review Questions

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Questions refer to the Hi-Lo game described below. Consider the problem of writing a Hi-Lo game in which a user thinks of an integer from 1 to 100 inclusive and the computer tries to guess that number. Each time the computer makes a guess, the user makes one of three responses: “lower” (i.e., the number is lower than the computer’s guess) “higher” (i.e., the number is higher than the computer’s guess) “you got it in < however many > tries! ” Suppose the game is programmed so that the computer uses a binary search strat- egy for making its guesses. What is the maximum number of guesses the com- puter could make before guessing the user’s number?
Correct Answer:
7
Explanation:
Correct answer: 7

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