Terms in this set [50]
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COMPUTER SCIENCE
Assume we have a “computing agent” that knows how to do one-digit subtraction where the fi rst digit is at least as large as the second [i.e., we do not end up with a negative number]. Thus, our computing agent can do such operations as 7 - 3 = 4, 9 - 1 = 8, and 5 - 5 = 0. It can also subtract a one-digit value from a two-digit value in the range 10-18 as long as the final result has only a single digit. This capability enables it to do such operations as 13 - 7 = 6, 10 - 2 = 8, and 18 - 9 = 9. Using these primitive capabilities, design an algorithm to do decimal subtraction on two m-digit numbers, where $\mathrm{m} \geq 1 .$ You will be given two unsigned whole numbers $a_{m-1} a_{m-2} . . . a_{0}$ and $b_{m-1} b_{m-2} \dots b_{0}$ Your algorithm must compute the value $\mathrm{c}_{\mathrm{m}-1} \mathrm{c}_{\mathrm{m}-2} . . . \mathrm{c}_{0},$ the difference of these two values. $$ \begin{array}{r}{a_{m-1} a_{m-2} \cdots a_{0}} \\ {-b_{m-1} b_{m-2} \dots b_{0}} \\ \hline {C_{m-1} C_{m-2} \cdots C_{0}}\end{array} $$ You may assume that the top number $\left[a_{m-1} a_{m-2} \dots a_{0}\right]$ is greater than or equal to the bottom number $\left[b_{m-1} b_{m-2} . . . b_{0}\right]$ o that the result is not a negative value. However, do not assume that each individual digit ai is greater than or equal to bi. If the digit on the bottom is larger than the digit on the top, then you must implement a borrowing scheme to allow the subtraction to continue. [Caution: It may have been easy to learn subtraction as a first grader, but it is devilishly difficult to tell a computer how to do it!]
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COMPUTER SCIENCE
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COMPUTER SCIENCE
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COMPUTER SCIENCE
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Configure the screen saver settings.Right-click Start and then select Settings.Maximize the window for better viewing.Select Personalization.From the left pane, select Lock screen.From the right pane, select Screen saver settings.Under Screen Saver, use the drop-down to select Photos.Configure the Wait time to 5 minutes.Select On resume, display logon screen.Select OK to close the Screen Saver Settings dialog.In the top left, select Home to
return to the Windows Settings page.
Enable Remote Desktop.From Windows Settings, select System.From the left pane, select Remote Desktop.From the right pane, under Enable Remote Desktop, slide the switch to ON.Select Confirm.
Use File Explorer to create a folder.Right-click Start and then select File Explorer.From the left pane, expand and select This PC > Data [D:] to open this drive.From the right pane, right-click in white space, and then select New > Folder.In the Name field,
type Reports and then press Enter.Close File Explorer.
Enable a network adapter.From Windows Settings, select Network & Internet.From the right pane, under Change your network settings, select Change adapter options.Right-click Ethernet and select Enable.Close the Network Connections window.In the top left, select Home to return to the Windows Settings page.
Select Score Lab.
Create a new table for customers.At the top of the screen, click the
Create tab, then click Table Design.In the first row of the grid, set the field name as CustomerID and the data type as Autonumber. Click the Primary Key button at the top-left corner of the screen to make this field the primary key.In the second row of the grid, set the field name as firstName and the data type as Short Text.In the third row of the grid, set the field name as lastName and the data type as Short Text.At the top-left corner of the screen, click the Save icon. Change the name of
the table to Customers and click OK.
Create a one-to-many relationship to link the Employees table to the PhoneNumbers table.At the top of the screen, click the Database Tools tab, then click Relationships.On the Show Table dialog box, double-click Employees and PhoneNumbers, then click Close.Drag the EmployeeID field from the Employees table [primary key] to the EmployeeID field of the PhoneNumbers table [foreign key].On the Edit Relationships dialog box, check the box next to Enforce
Referential Integrity, then click Create.
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