EBK COMPUTING ESSENTIALS 2019
27th Edition
ISBN: 8220106797457
Author: O'LEARY
Publisher: YUZU
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Chapter 6, Problem 1CC
Program Plan Intro
Define input and input devices.
Expert Solution & Answer
Explanation of Solution
Input is any information or data that is sent to a computer for processing. Input can take a variety of forms, from simple commands you enter from the keyboard to data from another computer or device. Input process can be something simple like moving the mouse or clicking the mouse button or it can be complex like scanning a document or downloading photos from a camera.
Input devices are hardware devices that are used to send data to a computer. Devices such as a keyboard, mouse, scanner, webcam, microphone, etc. are considered input devices. Input devices allows users to communicate, interact and feed information and data into the computer for processing, display, storage, and transmission. These devices transform user actions and commands into an electronic signal which can be understood by the computer.
Input devices are very important as they allow users to interact with computers and add any new information. Through these devices, the user exercises control over a computer, its operations, and outputs.
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Students have asked these similar questions
Design a dynamic programming algorithm for the Longest Alternating Subsequence problem
described below:
Input: A sequence of n integers
Output: The length of the longest subsequence where the numbers alternate between being larger and
smaller than their predecessor
The algorithm must take O(n²) time. You must also write and explain the recurrence.
Example 1:
Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4]
Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4])
Example 2:
Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8]
Output: 8 ([4, 7, 2, 5, 3, 8, 0,4])
(Take your time with this for the subproblem for this one)
Design a dynamic programming algorithm for the Coin-change problem described below:
Input: An amount of money C and a set of n possible coin values with an unlimited supply of each
kind of coin.
Output: The smallest number of coins that add up to C exactly, or output that no such set exists.
The algorithm must take O(n C) time. You must also write and explain the recurrence.
Example 1:
Input: C24, Coin values = = [1, 5, 10, 25, 50]
Output: 6 (since 24 = 10+ 10+1+1 +1 + 1)
Example 2:
Input: C = 86, Coin values = [1, 5, 6, 23, 35, 46, 50]
Output: 2 (since 86 = 46+35+5)
Design a dynamic programming algorithm for the Longest Common Subsequence problem de-
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Input: Two strings x = x1x2 xm and y = Y1Y2... Yn
Output: The length of the longest subsequence that is common to both x and y.
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The algorithm must take O(m n) time. You must also write and explain the recurrence.
(I want the largest k such that there are 1 ≤ i₁ < ... < ik ≤ m and 1 ≤ j₁ < ... < jk ≤ n such that
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Example 1:
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Output: 6 ('ghnost' is the longest common subsequence to both strings)
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Output: 3 ('asu' is the longest common subsequence to both strings)
Chapter 6 Solutions
EBK COMPUTING ESSENTIALS 2019
Ch. 6 - Prob. 1CCCh. 6 - Prob. 2CCCh. 6 - Prob. 3CCCh. 6 - Prob. 4CCCh. 6 - Prob. 5CCCh. 6 - Prob. 6CCCh. 6 - Prob. 7CCCh. 6 - Prob. 8CCCh. 6 - Prob. 9CCCh. 6 - Prob. 10CC
Ch. 6 - Prob. 11CCCh. 6 - Prob. 12CCCh. 6 - Prob. 13CCCh. 6 - Prob. 14CCCh. 6 - Prob. 15CCCh. 6 - Prob. 16CCCh. 6 - Prob. 17CCCh. 6 - Prob. 18CCCh. 6 - Prob. 19CCCh. 6 - Prob. 20CCCh. 6 - Prob. 21CCCh. 6 - Prob. 22CCCh. 6 - Prob. 23CCCh. 6 - Prob. 24CCCh. 6 - Prob. 1MCCh. 6 - Prob. 2MCCh. 6 - Prob. 3MCCh. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - Prob. 6MCCh. 6 - Prob. 7MCCh. 6 - Prob. 8MCCh. 6 - Prob. 9MCCh. 6 - Prob. 10MCCh. 6 - Prob. 1MCh. 6 - Prob. 1OECh. 6 - Prob. 2OECh. 6 - Prob. 3OECh. 6 - Prob. 4OECh. 6 - Prob. 5OECh. 6 - Prob. 6OECh. 6 - Prob. 7OECh. 6 - Respond to each of the following questions. 1...Ch. 6 - Prob. 2DCh. 6 - Prob. 3DCh. 6 - Prob. 4D
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