2.) Let f() be a function defined on the positive integers. For some fixed unknown positive...
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2.) Let f() be a function defined on the positive integers. For some fixed unknown positive integer n, f(x)= -1 = 0 1 for 1<x< n for x = n for x > n. (1) Assume a single call to f() takes unit time. 1. Give a very simple algorithm that finds the value of n in O(n) time. 2. Design a more sophisticated algorithm that finds the value of n in o(n) time. What is the best running time you can achieve? 3. Can you give an argument for a lower bound on the running time of any algorithm that finds the value of n? 2.) Let f() be a function defined on the positive integers. For some fixed unknown positive integer n, f(x)= -1 = 0 1 for 1<x< n for x = n for x > n. (1) Assume a single call to f() takes unit time. 1. Give a very simple algorithm that finds the value of n in O(n) time. 2. Design a more sophisticated algorithm that finds the value of n in o(n) time. What is the best running time you can achieve? 3. Can you give an argument for a lower bound on the running time of any algorithm that finds the value of n?
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Solution to Problem 2 1 Simple algorithm to find n in On time def findnf for x in range1 n ... View the full answer
Related Book For
Introduction to Algorithms
ISBN: 978-0262033848
3rd edition
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
Posted Date:
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