Computers and Technology, 11.10.2020 23:01 organdonor626
Modify the recursive Fibonacci function to employ the memoization technique discussed in this chapter. The function creates a dictionary and then defines a nested recursive helper function named memoizedFib. The base case is the same as before. However, before making a recursive call, the helper function looks up the value for the function’s current argument in the dictionary (use the method get, with None as the default value). If the value exists, the function returns it. Otherwise, after the helper function adds the results of its two recursive calls, it saves the sum in the dictionary with the current argument of the function as the key. Also use the Counterobject discussed in this chapter to count the number of recursive calls of the helper function. Included code:def fib(n):"""Returns the nth Fibonacci number."""if n < 3:return 1else:return fib(n - 1) + fib(n - 2)def main():"""Tests the function with some powers of 2."""problemSize = 2print("%4s%12s" % ("n", "fib(n)"))for count in range(5):print("%4d%12d" % (problemSize, fib(problemSize)))problemSize *= 2if __name__ == "__main__":main()
Answers: 3
Computers and Technology, 22.06.2019 08:30, gg68814
1.the index finger on your right hand types the f r v 4 j u m 7 h y 6 n lo.9 j u 7 m g t 5 b 2.if you need to multiply 400, 2, and 1 ½, what would you type on the numeric keypad? 400*2*1.5 400/2*1.5 400/2/1.5 400*2*1½ 3.select all examples of proper keyboarding technique. rest your fingers gently on the home row or home keys. slouch in your chair. rest your palms on the keyboard. relax your fingers. keep your hands lower than your elbows.
Answers: 1
Computers and Technology, 23.06.2019 14:30, carter1809
Choose the answers that best complete each sentence. on average, are more expensive than other kinds of postsecondary schools. the cost of room and board includes. to save money, some students attend auniversity in their home state.
Answers: 2
Modify the recursive Fibonacci function to employ the memoization technique discussed in this chapte...
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