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4 years ago

7

Define an iterative function named alternate_i; it is passed two linked lists (ll1 and ll2) as arguments. It returns a reference

to the front of a linked list that alternates the LNs from ll1 and ll2,

Computers and Technology

1 answer:

zmey [24]4 years ago

5 0

Answer:

answer is attached

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Write a function swaparrayends() that swaps the first and last elements of the function's array parameter. ex: sortarray

Katena32 [7]

Def swapArrayEnds( array ):
    tmp = array[ len( array ) - 1 ]
    array[ len( array ) - 1 ] = array[ 0 ]
    array[ 0 ] = tmp

3 0

3 years ago

8. What is output by the code segment below?

vova2212 [387]

Answer:

b. 1 2 3 4 5

Explanation:

Let us analyze the given code one statement at a time.

int [] x = {1,2,3,4,5}; // Initializes an integer array x

int [] y = new int [5] ; // Allocates a new integer array y

for (int i : x)

y = x;

This assign the variable y with the array x

for (int i : y)

System.out.print (i + " ");

The content of the attay y is printed one element at a time.

The final output will be as follows:

1 2 3 4 5

4 0

3 years ago

Given table R(A,B,C) and S(C,D,E), which of the following SQL statements would find the record(s) with null values on the column

sashaice [31]

Answer:

a. select * from R, S where R.C = S.C (+); (R left outer join S)

Explanation:

In SQL, left outer join of two tables R and S joined on a common column C means that all rows of R are included in the result including those rows for which value of R.C is null. On the contrary, right outer join of two tables R and S joined on a common column C means that all rows of S are included in the result including those rows for which value of S.C is null. As per the question our requirement is the former. So option a is correct.

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4 years ago

The color encoding we’re using is RGB.What does this mean,in terms of the amount of memory required to represent color? Is there

DanielleElmas [232]

Answer:

RGB

Explanation:

R=red

G=Green

B=Blue

RGB is standard scheme of colors ,rest of the colors use to be make by mixing three of these colors. These are standard colors use for monitor,computer and Tv screen.

RBG plays an vital role in the memory of the computer. For example the JPG file is RBG-24 bit file. So it is easy to upload the file that is JPG and it is easy to edit and upload. This file is taking less RAM so the editors usually keeps the JPG file along with them because it is easy to compress and edit the file.

Hence it is proved that RGB color coding is very efficient for the usage of the memory because it is already a compressed file and use the RAM so efficiently, so the quality of task done by CPU would never be compromised by using RGB.

Large photo is usually composed of more colors and the computer use to struggle alot for such iamge files.

The RGB code (0-255 for each of R, G, B) carrirs 16777216 possible matches. It's not almost "every new color," but it made up more than most of the colors humans can easily identifies.

we must say that RGB is not the perfect choice for making every possible color that is existing but it is quite helpful in making every unique color that a human could identify. RGB is mostly makes the light color with the combination of these three colors.

RGB is not the best for making every possible color but it is so useful as far as the computer memory is concern it uses very less memory and it file is quite light. Uploading of JPG file is easy ,it takes less time and memory.

On clouds the memory is most important element so, mostly the RGB are preferred colors and these are enough to represent in compute scheme.

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3 years ago

Imagine you want to clean up your database and decide to delete all records from the Review table that have an Id of 100 or less

olasank [31]

Answer: The query to delete rows for the given scenario is

DELETE

FROM Review

WHERE Id < 100 OR Id = 100;

Explanation:

In SQL, the table can be removed using either DROP, TRUNCATE or DELETE commands.

DROP command is used to delete the whole structure of the table. The general syntax is given below.

DROP TABLE table_name;

After this command, the whole structure of the specified table will be deleted. This table will have to be created again in order to use it and put data in this table.

SELECT *

FROM table_name;

This command when executed after the DROP command, will show an error.

This command can be used to drop database objects like constraints, index and the others.

The TRUNCATE command removes all the rows from a table. The structure of the table remains intact and data can be put again in this table.

This command only removes the data currently present in the table.

The general syntax is given below.

TRUNCATE TABLE table_name;

The command below will compile but it will not return any rows.

SELECT *

FROM table_name;

Alternatively, DELETE keyword is used to drop only the rows from a given table.

The general syntax for deleting rows from a table is given below.

DELETE

FROM table_name

WHERE [condition];

The WHERE clause is optional in a DELETE query.

SELECT *

FROM table_name;

The above command will compile and return rows if rows are present in the table other than the deleted rows.

The table used in the given query is Review table. We assume that Id is the primary key for the Review table. The query becomes

DELETE

FROM Review;

The condition for this deletion is that Id should be less than or equal to 100. The final query is written as

DELETE

FROM Review

WHERE Id < 100 OR Id = 100;

5 0

3 years ago