Suppose you have a stack ADT (i.e., an Abstract Data Type that includes operations to maintain a stack. Design a flowchart or suitable logical diagram to show you could implement a queue’s enqueue and dequeue operations using two stacks, stack 1 and stack 2.

Answers

Answer 1

Answer:

One approach would be to move all items from stack1 to stack2 (effectively reversing the items), then pop the top item from stack2 and then put them back.

Assume you use stack1 for enqueueing. So enqueue(x) = stack1.push(x).

Dequeueing would be:

- For all items in stack1: pop them from stack1 and push them in stack 2.

- Pop one item from stack2, which will be your dequeue result

- For all items in stack2: pop them from stack2 and push them in stack 1.

Hope it makes sense. I'm sure you can draw a diagram.


Related Questions

By Using the following schema, answer the following SQL queries and commands: Product(P_code.P_name, P_price, P_on_hand,vend_code) Vender(vend_code, vend_fname, vend_areacode, vend_phone) 1- find the venders names who sell products in TN-5 area and their names include "dan". 2- find the code, name and vender code of product that has price between 1500S and 2500S and the product that has price between 48005 and 5600S. 3- Find the name, and code of venders who had 5 microwaves that has price less than 3500S. 4- Find the phone numbers of venders who sell Televisions. 5- Delete the records of venders who their first name is 'smith'

Answers

Explanation:

answer me pls i need sol bbbd

Describe two types of storage devices?​

Answers

Answer:

Central Process Unit and Random Access Memory

What are computer programs that make it easy to use and benefit from techniques and to faithfully follow the guidelines of the overall development methodology

Answers

Answer:

A Tool

Explanation:

Tools are computer programs that make it simple to use and benefit from techniques while adhering to the overall development methodology's guidelines. The correct option is A).

What are computer programs?

A computer-aided software development case tool is a piece of software that aids in the design and development of information systems. It can be used to document a database structure and provide invaluable assistance in maintaining design consistency.

A computer software application is one that is developed to assist a particular organizational function or process, such as payroll systems, market analysis, and inventory control.

The goal of introducing case tools is to reduce the time and cost of software development, while also improving the quality of the systems created.

Therefore, the correct option is A) Tools.

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The question is incomplete. Your most probably complete question is given below:

A) Tools

B) Techniques

C) Data flow

D) Methodologies

Consider the relational schema below: Students(sid: integer, sname: string, major: string) Courses(cid: integer, cname: string, hours: integer) Enrollment(sid: integer, cid: integer, grade: real) Write a relational algebra expression that satisfies this query? Find the distinct names of all students that take at least three courses and major in "Philosophy".

Answers

Solution :

Here, we need to perform JOIN operation of the students and registration.

Use NATURAL JOIN operator [tex]\Join[/tex] and so no need to specify Join condition.

Also we need to selection operator tp select only those course whose major in "philosophy".

Finally we projection operator π to project only distinct students name who took at least three courses.

[tex]$\pi [\sigma_{\text{student's nam}e} [ \sigma(\text{three courses}) \Join \text{"Philosophy"}]]$[/tex]

Write a program that reads in an integer, and breaks it into a sequence of individual digits. Display each digit on a separate line. For example, the input 16384 is displayed as 1 6 3 8 4 You may assume that the input has no more than five digits and is not negative.

Answers

Answer:

The program in Python is as follows:

num = int(input())

for i in str(num):

   print(int(i))

Explanation:

This gets input for the number

num = int(input())

This converts the number to string and iterates through each element of the string

for i in str(num):

This prints individual digits

   print(int(i))

What does the statement that follows do? double gallons[6] = { 12.75, 14.87 }; a. It assigns the two values in the initialization list to the first two elements but leaves the other elements with the values currently in memory. b. It assigns the two values in the initialization list to the first and second elements, third and fourth elements, and fifth and sixth elements. c. This statement is invalid. d. It assigns the two values in the initialization list to the first two elements and default values to the other elements.

Answers

Answer:

It assigns the two values in the initialization list to the first two elements and default values to the other elements.

Explanation:

Given

The array initialization

Required

Interpret the statement

double gallons[6] implies that the length/size of the array gallons is 6.

In other words, the array will hold 6 elements

{12.75, 14.87} implies that only the first two elements of the array are initialized ; the remain 4 elements will be set to default 0.

when was first generation of computer invented? ​

Answers

Introduction: 1946-1959 is the period of first generation computer. J.P.Eckert and J.W. Mauchy invented the first successful electronic computer called ENIAC, ENIAC stands for “Electronic Numeric Integrated And Calculator”.

PartnerServer is a Windows Server 2012 server that holds the primary copy of the PartnerNet.org domain. The server is in a demilitarized zone (DMZ) and provides name resolution for the domain for Internet hosts.
i. True
ii. False

Answers

Answer:

i. True

Explanation:

A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address.

This ultimately implies that, a DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.

Windows Server 2012 is a Microsoft Windows Server operating system and it was released to the general public on the 4th of September, 2012, as the sixth version of the Windows Server operating system and the Windows NT family.

PartnerServer is a Windows Server 2012 server that was designed and developed to hold the primary copy of the PartnerNet dot org domain.

Typically, the server is configured to reside in a demilitarized zone (DMZ) while providing name resolution for the domain of various Internet hosts.

In order to prevent a cyber attack on a private network, end users make use of a demilitarized zone (DMZ).

A demilitarized zone (DMZ) is a cyber security technique that interacts directly with external networks, so as to enable it protect a private network.

Code Example 4-1 int limit = 0; for (int i = 10; i >= limit; i -= 2) { for (int j = i; j <= 1; ++j) { cout << "In inner for loop" << endl; } cout << "In outer for loop" << endl; } (Refer to Code Example 4-1.) How many times does "In inner for loop" print to the console? a. 1 b. 0 c. 2 d. 5 e. 7

Answers

Answer:

"In inner for loop" is printed twice.

Answer: C. 2

Explanation:

Code:

int main()

{

   int limit = 0;

   for  (int i =0; i>=limit; i-=2) {

       for (int j = i; j <= 1; ++j){

           cout << "In inner for loop" << endl;

       }

       cout << "In outer for loop" << endl;

   }

   return 0;

}

Output:

In inner for loop

In inner for loop

In outer for loop

The output "In inner for loop" print twice.

Thus, option (c) is correct.

In the given code example, the inner for loop has a condition j <= 1.

This condition means that the loop will execute as long as j is less than or equal to 1.

However, the initial value of j is i, and the value of i decreases by 2 in each iteration of the outer for loop.

When i = 8, the inner loop has the condition j ≤ 1.

The loop will iterate as long as j is less than or equal to 1.

So the inner loop executes twice: once when j = 8, and then when j = 9. The statement "In inner for loop" prints twice.

Therefore, the output print twice.

Thus, option (c) is correct.

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what is programming language?​

Answers

Answer:

A programming language is a formal language comprising a set of strings that produce various kinds of machine code output. Programming languages are one kind of computer language, and are used in computer programming to implement algorithms. Most programming languages consist of instructions for computers

Answer:

The artificial languages that are used to develop computer programs are called programming language . hope this help!

Why is it useful for students to practice the MLA and APA citation methods?

Answers

Answer:

Citing or documenting the sources used in your research serves three purposes:

It gives proper credit to the authors of the words or ideas that you incorporated into your paper.

It allows those who are reading your work to locate your sources, in order to learn more about the ideas that you include in your paper.

Why coding conventions are important? Compare the coding conventions of JAVA.

Answers

Answer:

Naming conventions make programs more understandable by making them easier to read. They can also give information about the function of the identifier-for example, whether it's a constant, package, or class-which can be helpful in understanding the code.

John downloaded the manual for his TV, called manual-of-tv.pdf, from the manufacturer's website. After he clicked twice on the document he was informed by Windows that the file could not be opened. Which software must John install to solve the problem?

Answers

Jhon must download third party pdf viewer softwares to open the .pdf file.

For example

Adobe Acrobat Reader

Must click thanks and mark brainliest

The analog computer deals directly with

Answers

continuously variable aspects of physical phenomena such as a electrical, mechanical etc.

The analog computer deals directly with measured values of continuous physical magnitude.

What is an Analog computer?

An analog computer may be defined as a type of computer that is significantly used to process analog data. These computers store data as a continuum of physical quantities and perform calculations using measurements.

It is completely different from digital computers, which use symbolic numbers to represent results. are great for situations that require data to be measured directly without conversion to numbers or codes. Analog computers, although readily available and used in scientific and industrial applications such as control systems and aircraft, have largely been superseded by digital computers due to the many complications involved.

Therefore, the analog computer deals directly with measured values of continuous physical magnitude.

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Your question seems incomplete. The most probable complete question is as follows:

The analog computer deals directly with:

number or codes.measured values of continuous physical magnitude.signals in the form of 0 or 1.signals in discrete values from 0 to 9

Write a pseudocode method swap(aList, i, j) that interchanges the items currently in positions i and j of a list. Define the method in terms of the operations of the ADT list, so that it is independent of any particular implementation of the list. Assume that the list, in fact, has items at positions i and j. What impact does this assumption have on your solution

Answers

Answer:

Explanation:

The following pseudocode for this method using operations of the ADT list would be the following

swap(aList, indexI, indexJ) {

    initialize temp_variable = Retrieve(indexI, aList)

    Insert(Retrieve(indexJ, aList), indexI, aList)

    Insert(Retrieve(indexI, aList), temp_variable, aList)

}

This code basically saves the aList index of i , into a temporary Variable. Then it sets the aList index of i to the value of the element in index of j. Then it does the same for the index of j with the tem_variable. If we assume that the indexes of i and j exist, then it can crash our entire program if those indexes are missing from the list when we try to access them.

Analyzing the role of elements in audio editing and Video
+ analyzing the role of the visual element in Video + analyzing the role of text factor
+ analyzing the role of the audio factor
+ analyzing the role of the transfer scene
+ analysing the role of the audio visual effects

Answers

Answer:

Analyzing the role of elements in audio editing and Video

+ analyzing the role of the visual element in Video + analyzing the role of text factor

+ analyzing the role of the audio factor

+ analyzing the role of the transfer scene

+ analysing the role of the audio visual effect

What triggers a LinkedIn account ban?

Answers

Answer:

Before we dig into using advanced LinkedIn automation tools, it’s important to understand what activities can trigger LinkedIn to ban your account?

Using multiple LinkedIn tools at the same timeUsing Low-quality LinkedIn ToolsSending Connect Requests BlindlySending Templates Messages

write a C++ program that receives a number as input from the user ,and checks whether it is greater than 8 and less than 10 or not and print the result

Answers

num_in = float (input = ("Please enter a number from 0 to ten: "))

def cmp_num(num_in):

try:

if num_in > 8 and num_in < 10:

print ("{0} is greater than 8 and less than 10".format(num_in) )

elif num_in < 8 and num_in < 10:

print (" {0} is less than 8 and less than 10".format(num_in) )

else:

print ("{0} is out of the restriction".format (num_in))

except ValueError:

print ("Invalid input")

Which Windows installation method requires that you manually rename computers after the installation?​

Answers

Answer:

Command line

Explanation:

After installation of the machine one needs to manually rename the computer. This can be done through the start then settings, then system, and select rename the PC in the right-hand side column.

Queues can be represented using linear arrays and have the variable REAR that point to the position from where insertions can be done. Suppose the size of the array is 20, REAR=5. What is the value of the REAR after adding three elements to the queue?

Answers

Answer:

8

Explanation:

Queues can be implemented using linear arrays; such that when items are added or removed from the queue, the queue repositions its front and rear elements.

The value of the REAR after adding 3 elements is 5

Given that:

[tex]REAR = 5[/tex] --- the rear value

[tex]n = 20[/tex] --- size of array

[tex]Elements = 3[/tex] --- number of elements to be added

When 3 elements are added, the position of the REAR element will move 3 elements backward.

However, the value of the REAR element will remain unchanged because the new elements that are added will only change the positioning of the REAR element and not the value of the REAR element.

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5. Which events is used to code on any form load
a) Form Text b) Form Code c) Form Load d) Form Data

Answers

Answer:

I think b is correct answer

Question No: 9 Of 50 Time Left : 59:18
ОА
QUESTION
Which of the following two entities (reading from Left to right) can be connected by the dot operator?
A class member and a class object.
A class object and a class,
A constructor and a member of that class.
OB
Ос
OD
A class object and a member of that class.

Answers

Answer:b

Explanation:

to get points

Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the string. The output should include the input character and use the plural form, n's, if the number of times the characters appears is not exactly 1. Ex: If the input is: n Monday the output is: 1 n Ex: If the input is: z Today is Monday the output is: 0 z's Ex: If the input is: n It's a sunny day the output is: 2 n's Case matters. Ex: If the input is: n Nobody the output is: 0 n's n is different than N.

Answers

Answer:

The program in Python is as follows:

char = input("Character: ")[0]

string = input("String: ")

kount = string.count(char)

print(kount,char,end="")

if kount!=1:

   print("'s")

Explanation:

This gets character input

char = input("Character: ")[0]

This gets string input

string = input("String: ")

This counts the occurrence of char in string

kount = string.count(char)

This prints the number of occurrence and the character

print(kount,char,end="")

This prints 's, if kount is other than 1

if kount!=1:

   print("'s")

Write a program that prompts the user to enter a positive integer and displays all its smallest factors in decreasing order.

Answers

Answer:

<fact>[ZRjKt9sw6V(gh6E)ehNM3]<zip>

Explanation:

how can I order the prices negatively affect other producers of goods and services​

Answers

Scarcity of availability causes producers to either charge
higher prices or to produce more goods and services (like energy
production, cars, paper, etc.)

Which of the given assertion methods will return true for the code given below? Student student1 = new Student(); Student student2 = new Student(); Student student3 = student1;
The Student class is as follows.
public class Student{
private String name;
}
a. assertEquals(student1, student2);
b. assertEquals(student1, student3);
c. assertSame(student 1, student3);
d. assertSame(student1, student2);

Answers

Answer:

The true statements are :

A. assertEquals(student1,student2)  

C. assertSame(student1,student3)

Explanation:

AssertEquals() asserts that the objects are equal, but assertSame() asserts that the passed two objects refer to the same object or not, if found same they return true, else return false.

Methods are collections of named code segments that are executed when evoked

The assertion method that will return true for the given code is: assertEquals(student1,student2)  

The code segment is given as:

Student student1 = new Student();

Student student2 = new Student();

Student student3 = student1;

In Java, the assertEquals() method returns true if two objects have equal values.

Assume student1 and student2 have equal values, the statement assertEquals(student1,student2) will return true

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Write a program that accepts a list of integers and split them into negatives and non-negatives. The numbers in the stack should be rearranged so that all the negatives appear on the bottom of the stack and all the non-negatives appear on the top.

Answers

Answer:

The program is as follows:

n = int(input("List elements: "))

mylist = []; myList2 = []

for i in range(n):

   num = int(input(": "))

   mylist.append(num)

for i in mylist:

   if i >= 0:

       myList2.append(i)

for i in mylist:

   if i < 0:

       myList2.append(i)

print(myList2)

Explanation:

This gets the number of list elements from the user

n = int(input("List elements: "))

This initializes two lists; one of input and the other for output

mylist = []; myList2 = []

This is repeated for every input

for i in range(n):

Get input from the user

   num = int(input(": "))

Append input to list

   mylist.append(num)

This iterates through the input lists

for i in mylist:

If list element is non-negative

   if i >= 0:

Append element to the output list

       myList2.append(i)

This iterates through the input lists, again

for i in mylist:

If list element is negative

   if i < 0:

Append element to the output list

       myList2.append(i)

Print output list

print(myList2)

A bot can use a _______to capture keystrokes on the infected machine to retrieve sensitive information.

Answers

Answer:

keylogger.

Explanation:

A keylogger can be defined as a software program or hardware device designed for monitoring and recording the keystrokes entered by an end user through the keyboard of a computer system or mobile device.

Basically, a keylogger can be installed as a software application or plugged into the USB port of a computer system, so as to illegally keep a record of all the inputs or keys pressed on a keyboard by an end user.

In order to prevent cyber hackers from gaining access to your keystrokes, you should install an anti-malware software application such as Avira, McAfee, Avast, Bitdefender, Kaspersky, etc.

An antivirus utility is a software application or program that's used to scan, detect, remove and prevent computer viruses such as Malware, Trojan horses, keyloggers, botnets, adwares etc.

In conclusion, a bot can use a keylogger to capture keystrokes on the infected machine to retrieve sensitive information.

Write a program that randomly chooses among three different colors for displaying text on the screen. Use a loop to display 20 lines of text, each with a randomly chosen color. The probabilities for each color are to be as follows: white 30%, blue 10%, green 60%. Suggestion: Generate a random integer between 0 and 9. If the resulting integer falls in the range 0 to 2 (inclusive), choose white. If the integer equals to 3, choose blue. If the integer falls in the range 4 to 9 (inclusive), choose green. Test your program by running it ten times, each time observing whether the distribution of line colors appears to match the required probabilities.

Answers

INCLUDE Irvine32.inc

.data

msgIntro  byte "This is Your Name's fourth assembly extra credit program. Will randomly",0dh,0ah

        byte "choose between three different colors for displaying twenty lines of text,",0dh,0ah

        byte "each with a randomly chosen color. The color probabilities are as follows:",0dh,0ah

        byte "White=30%,Blue=10%,Green=60%.",0dh,0ah,0

msgOutput byte "Text printed with one of 3 randomly chosen colors",0

.code

main PROC

;

//Intro Message

      mov edx,OFFSET msgIntro  ;intro message into edx

      call WriteString         ;display msgIntro

      call Crlf                ;endl

      call WaitMsg             ;pause message

      call Clrscr              ;clear screen

      call Randomize           ;seed the random number generator

      mov edx, OFFSET msgOutput;line of text

      mov ecx, 20              ;counter (lines of text)

      L1:;//(Loop - Display Text 20 Times)

      call setRanColor         ;calls random color procedure

      call SetTextColor        ;calls the SetTextColor from library

      call WriteString         ;display line of text

      call Crlf                ;endl

      loop L1

exit

main ENDP

;--

setRanColor PROC

;

; Selects a color with the following probabilities:

; White = 30%, Blue = 10%, Green = 60%.

; Receives: nothing

; Returns: EAX = color chosen

;--

      mov eax, 10              ;range of random numbers (0-9)

      call RandomRange         ;EAX = Random Number

      .IF eax >= 4          ;if number is 4-9 (60%)

      mov eax, green           ;set text green

      .ELSEIF eax == 3         ;if number is 3 (10%)

      mov eax, blue            ;set text blue

      .ELSE                    ;number is 0-2 (30%)

      mov eax, white           ;set text white

      .ENDIF                   ;end statement

      ret

setRanColor ENDP

In securing the client/server environment of an information system, a principal disadvantage of using a single level sign-on
password is the danger of creating a(n)
A
administrative bottleneck
B
trap door entry point
С
lock-out of valid users
D
Single point of failure

Answers

Answer:

C

Explanation:

Other Questions
On January 1, 2018, Ameen Company purchased major pieces of manufacturing equipment for a total of $36 million. Ameen uses straight-line depreciation for financial statement reporting and MACRS for income tax reporting. At December 31, 2020, the book value of the equipment was $30 million and its tax basis was $20 million. At December 31, 2021, the book value of the equipment was $28 million and its tax basis was $12 million. There were no other temporary differences and no permanent differences. Pretax accounting income for 2021 was $50 million.Required:a. Prepare the appropriate journal entry to record Ameens 2021 income taxes. Assume an income tax rate of 25%.b. What is Ameens 2021 net income? 5. What happens when a country has a mixed economy? A. There is a blend of big and small industries.B. The people can choose whether to work or not.C. Some businesses are privately and some are publicly owned.D. Immigration is encouraged to promote a diverse workforce. Factor the polynomial and explain answer Which is a possible outcome of global warming?A. Hurricanes and other extreme weather will increase B. Most crops will grow better in warmer climates C. Sea levels will drop all around the world D. Disease will not be able to spread as quickly Read the itinerary for a short trip to Louisiana and answer the questions in English.VENEZ EN LOUISIANE!SUGGESTIONS POUR UN COURT SJOURJOUR 1: Voyage en avion; arrive La Nouvelle-Orlans.JOUR 2: Faites un tour du Vieux Carr pied. Visitez le muse, le Presbytre, pour dcouvrir lhistoire de la ville. Dgustez des spcialits croles chez Antoine, le restaurant le plus vieux de la ville.JOUR 3: Partez tt en car pour la route des plantations. Dcouvrez des styles darchitecture diffrents: le style classique du sud amricain Oak Alley et le style crole Laura, par exemple. Passez la nuit la plantation Nottoway.JOUR 4: Allez Lafayette. En route, faites une balade en bateau sur le bassin Atchafalaya. Passez la nuit chez un habitant cadien. Dnez chez Prjean pour dcouvrir le jambalaya, le gombo et ltouffe. Allez danser au son de la musique cadienne chez Randols.JOUR 5: Allez au muse du parc national Jean Lafitte pour voir le film sur le Grand Drangement. Visitez le muse Vermillionville. Retournez La Nouvelle-Orlans.JOUR 6: Retour en France.1. What are the four different types of transportation mentioned?Enter Text2. What are two of the three cultures tourists will learn about?Enter Text3. What can one discover at the Presbytre?Enter Text4. What is one type of architecture seen in the plantations?Enter Text5. What are two Cajun specialties?Enter Text what is the answer for this question?1. Dayne has three investment portfolios: A, B and C. Portfolios A, B and C together are worth a total of $175000, portfolios A and B together are worth a total of $143000, while portfolios A and C together are worth a total of $139000.Use Cramers Rule to find the value of each portfolio. Cch hc t vng nh nhanh v nhiu Mnh th mochi mochi ri ng l hiu qu nhng ph qu t Mnh thng hay nn v khng c nhiu ng lc hc Cn ngi ch cch hc v app A manufacturer of radio sets produced 600 units in the third year and 700 units in theseventh year. Assuming the production uniformly increases by a fixed number every year,the production in the first year isb) 530d) 570a) 500c) 550 In a recent survey for an upcoming city mayoral election, people were asked to name the political party they identified with and also thethe candidate they were going to vote for. Of the 150 people who identified themselves as Democrats, 133 said they would vote for the Democratic candidate. The rest said tovote for the Republican.. Of the 160 people who identified themselves as Republican, 142 said they would vote for the Republican candidate. 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