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2. This exercise is another variation on "instrumenting" the recursive Fi- bonacci program to better understand its behavior. Write a program that counts how many times the fib function is called to compute fib(n) where n is a user input. Hint: To solve this problem, you need an accumulator variable whose value "persists" between calls to fib. You can do this by making the count 13.6. Exercises 497 an instance variable of an object. Create a FibCounter class with the following methods: init (self) Creates a new FibCounter, setting its count instance vari- able to 0. getCount (self) Returns the value of count. fib(self,n) Recursive function to compute the nth Fibonacci number. It increments the count each time it is called. resetCount (self) Sets the count back to 0.

2. This exercise is another variation on "instrumenting" the recursive Fi- bonacci program to better understand its behavior. Write a program that counts how many times the fib function is called to compute fib(n) where n is a user input. Hint: To solve this problem, you need an accumulator variable whose value "persists" between calls to fib. You can do this by making the count 13.6. Exercises 497 an instance variable of an object. Create a FibCounter class with the following methods: init (self) Creates a new FibCounter, setting its count instance vari- able to 0. getCount (self) Returns the value of count. fib(self,n) Recursive function to compute the nth Fibonacci number. It increments the count each time it is called. resetCount (self) Sets the count back to 0.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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2. This exercise is another variation on "instrumenting" the recursive Fi- bonacci program to better understand its behavior. Write a program that counts how many times the fib function is called to compute fib(n) where n is a user input. Hint: To solve this problem, you need an accumulator variable whose value "persists" between calls to fib. You can do this by making the count 13.6. Exercises 497 an instance variable of an object. Create a FibCounter class with the following methods: init (self) Creates a new FibCounter, setting its count instance vari- able to 0. getCount (self) Returns the value of count. fib(self,n) Recursive function to compute the nth Fibonacci number. It increments the count each time it is called. resetCount (self) Sets the count back to 0. DII F5 PrtScn F8 Home F9 End F10 F6 F7
Transcribed Image Text:2. This exercise is another variation on "instrumenting" the recursive Fi- bonacci program to better understand its behavior. Write a program that counts how many times the fib function is called to compute fib(n) where n is a user input. Hint: To solve this problem, you need an accumulator variable whose value "persists" between calls to fib. You can do this by making the count 13.6. Exercises 497 an instance variable of an object. Create a FibCounter class with the following methods: init (self) Creates a new FibCounter, setting its count instance vari- able to 0. getCount (self) Returns the value of count. fib(self,n) Recursive function to compute the nth Fibonacci number. It increments the count each time it is called. resetCount (self) Sets the count back to 0. DII F5 PrtScn F8 Home F9 End F10 F6 F7
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