Problem 3. Given an array A[1: n] of n positive integers (possibly with repetitions), your goal is to find whether there is a sub-array All: r] such that Ali) = n. Example. Given A = [13, 1,2, 3, 4, 7, 2, 3,8, 9] for n = 10, the answer is Yes since elements in A2 : 5] add up to n = 10. On the other hand, if the input array is A = [3, 2,6,8, 20, 2, 4] for n = 7, the answer is No since no sub-array of A adds up ton=7. Hint: Observe that if Ali] = n, then Ali] = E A[i] – n; this may come handy!

Problem 3. Given an array A[1: n] of n positive integers (possibly with repetitions), your goal is to find whether there is a sub-array All: r] such that Ali) = n. Example. Given A = [13, 1,2, 3, 4, 7, 2, 3,8, 9] for n = 10, the answer is Yes since elements in A2 : 5] add up to n = 10. On the other hand, if the input array is A = [3, 2,6,8, 20, 2, 4] for n = 7, the answer is No since no sub-array of A adds up ton=7. Hint: Observe that if Ali] = n, then Ali] = E A[i] – n; this may come handy!

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

algorithms are solely theoretical for a and b. please number the steps of the algorithm, thank you

Problem 3. Given an array A[1 : n] of n positive integers (possibly with repetitions), your goal is to find
whether there is a sub-array A[l : r] such that
Ali] = n.
10, the answer is Yes since elements in A[2 : 5] add
Example. Given A = [13, 1,2, 3, 4, 7,2, 3, 8, 9] for n
up to n = 10. On the other hand, if the input array is A = [3, 2,6, 8, 20, 2, 4] for n = 7, the answer is No
since no sub-array of A adds up to n = 7.
%3D
%3D
Hìnt: Observe that if Ali] = n, then Ali] = E-1 A[i] – n; this may come handy!
(a) Design an algorithm for this problem with worst-case runtime of O(n).
(b) Now suppose our goal is to instead find whether there is a sub-array A[l, r] such that
Ali] = n².
Design a randomized algorithm for this case with worst-case expected runtime of O(n).

Process or set of rules that allow for the solving of specific, well-defined computational problems through a specific series of commands. This topic is fundamental in computer science, especially with regard to artificial intelligence, databases, graphics, networking, operating systems, and security.

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