Computer Systems: A Programmer's Perspective (3rd Edition)
Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Chapter 12.5, Problem 12.10PP
Program Plan Intro

Given:

Refer figure 12.26, it gives solution to the first readers-writers problem. This solution gives importance to the readers, but this priority is weak in the logic that a writer leaving its critical section might resume a waiting writer instead of a waiting reader.

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Problem 2 (Wavefront Algorithm): Suppose the Wavefront algorithm provides the following grid map, where: • • R denotes the robot's initial position 1 denotes an inaccessible cell (for example, occupied by objects) 2 denotes the goal position (i.e., destination) When searching through the map to find a path, use eight-neighborhood. At the very first step starting at R, the robot should go to the cell whose value is the minimal among all neighbors of R. • Find at least five different paths. Highlight the shortest path (i.e., the one with minimal distance). 6 5 4 33 65433 65432 65432 65433 651 33 65444 654 5 4 4 4 65555 9 8 7 6 9 1 1 6 10 1 1 6 9 R 1 9 8 7 66 9 8 7 9 1 1 10 1 1 9 R 1 9 8 7 6 65433 5432 654 654 55 655 66666 65433 65 4 4 65555 66666 4 65 4 33 4 65555 66 666 4 9 8 7 9 1 1 10 1 1 9 R 1 9 8 7 9 8 7 9 1 1 10 1 1 9 R 1 9 8 7 65433 3 2 65433 9 8 7 9 1 1 66 6 5 65 6 10 1 1 6 5 4 9 R 1 6 5 4 543 65 4 3 9 8 7 6 5 4 3 2
Plot the orbit in 3D using a suitably dimensioned sphere for the Earth. [6]: # YOUR CODE HERE raise NotImplementedError() Not Implemented Error Cell In [6], line 2 1 # YOUR CODE HERE ----> 2 raise NotImplementedError() Not ImplementedError: Problem 1.6 Plot the Specific Energies (i.e., all three Kinetic, Potential and Total Energy) in the same plot as a function of time. The x-axis must show time (in hours) and y axis must show the Energy (in km² /s²). [7] # YOUR CODE HERE Traceback (most recent call last) raise NotImplementedError()
Problem No.1 Given: Eight (8) Queens and 8 x 8 chess board Goal: Arrange the 8 Queens in the 8 x 8 chess board as given in the layout above such that only one (1) Queen will be placed in any column, row, and diagonal/s. That is, no two or more Queens are placed in any column, row, and diagonal/s. Solve the problem set by the giving the solution, which is the sequence of steps, that will satisfy the goal. NOTE: The respective Queens are move in their column location only. For example, QA is move along column A, QB column B, and so on. However, you need to give the remaining moves to attain the required goal. Set the column labels from left to right A, B, C, D, E, F, G, and H, respectively. Set the row labels from top to bottom 8, 7, 6, 5, 4, 3, 2, and 1, respectively.
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