TOPIC 3. Consider an open production model having n industries with n> 1. In order to produce $i of its own output, the j th industry must spend $(1/n) for the output of the i th industry (for all i #j), but the j th industry (for all j = 1,2,3,.,n) spends nothing for its own output. Write a program with n is input by a user to do the following Construct the input-output matrix C,. • The matrix input-output C is called productive if (I - C)- exists and (I - C)- 2 0. Show that C, is productive. • Find the vector output-values of this system.
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- This problem exercises the basic concepts of game playing, using tic-tac-toe (noughtsand crosses) as an example. We define Xn as the number of rows, columns, or diagonals with exactly n X’s and no O’s. Similarly, On is the number of rows, columns, or diagonals with just n O’s. The utility function assigns +1 to any position with X3 = 1 and −1 to any position with O3 = 1. All other terminal positions have utility 0. For nonterminal positions, we use a linear evaluation function defined as Eval (s) = 3X2(s)+X1(s)−(3O2(s)+O1(s))."Mark on your tree the evaluations of all the positions at depth 2."Suppose that a manufacturing company builds n different types of robots, sayrobots 1, 2, . . . , n. These robots are made from a common set of m types of materials, saymaterials 1, 2, . . . , m. The company has only a limited supply of materials for each year,the amount of materials 1, 2, . . . , m are limited by the numbers b1, b2, . . . , bm, respectively.Building robot i requires an aij amount from material j. For example, building robot 1requires a11 from material 1, a12 from material 2, etc. Suppose the profit made by sellingrobot i is pi. Write an integer linear program for maximizing the annual profit for thecompany(i) Describe Banker’s algorithm for deadlock avoidance with supporting example Consider a computer system with has four identical units of a resource R. There are three processes each with a maximum claim of two units of resource R. Processes can request these resources in anyway, that is, two in one shot or one by one. The system always satisfies a request a request for a resource if enough resources are available. If the process doesn’t request any other kind of resource, show that the system never deadlock Give a solution for the following synchronization problem using semaphores Producer- Consumer Problem Readers- Writers Problem List out the issues in preprocessor scheduling that causes performance degradation in multiprocessor systems
- A firm is considering projects A, B, . . . , H. Using binary variables x_a, ..., x_h and linear constraints, model the following conditions on the projects to be undertaken. At most one of A,B,...,H. Exactly two of A,B,...,H. If A then B. If A then not B. If not A then B. If A then B and C. If A then B, and if B then A. If A then B or C. If B or C then A. If B and C then A. If two or more of B,C,D,E then A. If m or more than n projects B,...,H then A.Consider the following computation problem in two variables Plus: Input -14 <= x <= 28, x ∈ Z; -10 <= y <= 32, y∈ Z Output the integer x+y-7 and the following partition of the input domains: Ax = {[-14,-1], [0,10], [11,18]} for the variable x Ay = {[-10,12], [13, 32]} for the variable y Consider the following test suite: S: Test case x y Expected result T1 -5 5 -7 T2 5 5 3 T3 15 15 23 Say what holds for S: Consider the following computation problem in two variables Plus: Input -14 <= x <= 28, x ∈ Z; -10 <= y <= 32, y∈ Z Output the integer x+y-7 and the following partition of the input domains: Ax = {[-14,-1], [0,10], [11,18]} for the variable x Ay = {[-10,12], [13, 32]} for the variable y Consider the following test suite: S: Test case x y Expected result T1 -5 5 -7 T2 5 5 3 T3 15 15 23 Say what holds for S: a) It has more test…Consider the following Job Scheduling problem. We have one machine and a setof n jobs {1, 2, . . . , n} to run on this machine, one at a time. Each job has a start time sifinish time fi and profit pi where 0 ≤ si < fi < ∞ and pi > 0. Two jobs i and j are compatible if the intervals [si, fi)and [sj , fj ) do not overlap. The goal is to find a set A of mutually compatible jobs with the maximumtotal profit, i.e.,P j∈A pj is maximized.Consider the following two greedy choices. For each one, determine whether it is a “safe” greedy choicefor this Job Scheduling problem. If your answer is yes, prove the “Greedy-choice property”. If your answeris no, please give a counterexample and show that the greedy choice will not lead to an optimal solution. a.Greedy choice 1: Always select a job with the earliest finish time that is compatible with allpreviously selected activities.b.Greedy choice 2: Always select a job with the highest profit per time unit (i.e., pi/(fi − si))that is…
- A library must build shelving to shelve 200 4-inch high books, 150 8-inch high books, 300 10-inch high books and 180 12-inch high books. Each book is 0.5 inch thick. The library has several ways to store the books. For example, an 8-inch high shelf may be built to store all books of height less than or equal to 8 inches, and a 12-inch high shelf may be built for the 12-inch books. Alternatively, a 12-inch high shelf might be built to store all books. The library believes it costs $2,300 to build a shelf and that a cost of $5 per square inch is incurred for book storage. (Assume that the area required to store a book is given by height of storage area times book’s thickness.) Formulate and solve a shortest-path problem that could be used to help the library determine how to shelve the books at minimum cost. (Hint: Have nodes 0, 4, 8, 10 and 12, with cij being the total cost of shelving all books of height >i and ≤ j on a single shelf.)Consider the following snapshot of a system: Allocation Max Available A B C D A B C D A B C D P0 2 0 0 1 4 2 1 2 3 3 2 1 P1 3 1 2 1 5 2 5 2 P2 2 1 0 3 2 3 1 6 P3 1 3 1 2 1 4 2 4 P4 1 4 3 2 3 6 6 5 Answer the following questions using the banker’s algorithm: a. Illustrate that the system is in a safe state by demonstrating an order in which the processes may complete. b. If a request from process P1 arrives for (1, 1, 0, 0), can the request be granted immediately? c. If a request from process P4 arrives for (0, 0, 2, 0), can the request be granted immediately?Consider the following snapshot of a system: ALLOCATION MAX AVAILABLE A B C D A B C D A B C D P0 3 2 1 4 3 4 2 7 4 4 3 1 P1 2 5 4 3 4 7 7 6 P2 3 1 1 2 5 3 2 3 P3 2 4 2 3 2 5 3 5 P4 4 2 3 2 6 3 6 3 Answer the following questions using the banker’s algorithm: Illustrate that the system is in a safe state by demonstrating an order in which the processes may complete. If a request from process P4 arrives for (2,2,1,1), can the request be granted immediately? If a request from process P1 arrives for (1,1,3,1), can the request be granted immediately?
- Consider a computer system to which two types ofcomputer jobs are submitted. The mean time to run eachtype of job is m1. The interarrival times for each type of jobare exponential, with an average of li type i jobs arrivingeach hour. Consider the following three situations. a Type 1 jobs have priority over type 2 jobs, and pre-emption is allowed. b Type 1 jobs have priority over type 2 jobs, and nopreemption is allowed.c All jobs are serviced on a FCFS basis.Under which system are type 1 jobs best off? Worst off?Answer the same questions for type 2 jobs.Problem1Given a value `value`, if we want to make change for `value` cents, and we have infinitesupply of each of coins = {S1, S2, .. , Sm} valued `coins`, how many ways can we make the change?The order of `coins` doesn't matter.For example, for `value` = 4 and `coins` = [1, 2, 3], there are four solutions:[1, 1, 1, 1], [1, 1, 2], [2, 2], [1, 3].So output should be 4. For `value` = 10 and `coins` = [2, 5, 3, 6], there are five solutions: [2, 2, 2, 2, 2], [2, 2, 3, 3], [2, 2, 6], [2, 3, 5] and [5, 5].So the output should be 5. Time complexity: O(n * m) where n is the `value` and m is the number of `coins`Space complexity: O(n)""" def count(coins, value): """ Find number of combination of `coins` that adds upp to `value` Keyword arguments: coins -- int[] value -- int """ # initialize dp array and set base case as 1 dp_array = [1] + [0] * value.. (+.The motorway management perceives that the waiting time computed in (a) above is not acceptable and it wishes to reduce it, first, by adding an extra tollbooth assistant to help improve the service rate to 250 motorists every 8-hour-day. The tollbooth attendant will be paid a monthly salary of GH¢400. The second option is that management can add a toll-operated machine which will cost GH¢3,000 and this amount is a free gift from the Minister. This option will reduce the arrival rate to 35 motorists every 2 hours. However, management will have to pay the operator who will man the toll-operated machine a monthly salary of GH¢550. Whichever option management adopts; they avoid lost sales of GH¢1,200.00 per month for every minute that average waiting time is reduced. Advise management which option it must adopt?