(dominoes N) which returns a list containing the (N+1)(N+2)/2 tiles in a double-N domino set, with each tile represented as a dotted pair (an improper list).

(dominoes 2) ⇒ ((2 . 2) (2 . 1) (2 . 0) (1 . 1) (1 . 0) (0 . 0))

using the programming language scheme

i need the question to be answered using the programming language Scheme

c++

Please read the whole question and instrucions.

The instructor wants a function to convert string to int to perform the bitwise operations then convert int to string back again to show results.

Question:Write a program that produces the bitwise OR, bitwise AND, and bitwise XOR of the bit strings
1001 0011 1011 and 1111 1010 0000.

Thank you in advance.

C++ Zybook LAB15.3.1: What order? (function templates

Define two generic functions called GetVector() and CheckOrder(). GetVector() takes a string of items delimited by spaces and an item of a generic type (i.e., char, int, double, or string) and returns a vector of the given item type. CheckOrder() checks if the vector of items is in ascending, neither, or descending order. The function should return 'a' if the items are in ascending order, 'u' if the items are unordered, and 'd' if the items are in descending order.

To test your functions, you are provided a main program which: Reads items from the input one line at a time, Uses a function called DataType() to determine the type of data (e.g., char, int, etc.) in the line, Constructs a vector of the appropriate type using your GetVector() function, and Then calls your CheckOrder() to output how the items are ordered. The items can be different types, including integers, strings, characters, or doubles.

Ex. If the input is: bat hat mat sat 63.2 196.5 123.5 the output is: Order: a Order: u

Code:

#include <string>
#include <sstream>
#include <iostream>
#include <vector>

using namespace std;

// TODO: Define a generic function called GetVector() that
// takes a string of items delimited by spaces and
// an item of a generic type (i.e., char, int, double,
// or string) and returns a vector of the given item
// type. The GetVector() function signature is below.
template <typename T>
vector<T> GetVector(string items, T item);

// TODO: Define a generic function called CheckOrder() that
// takes a vector of either char, double, int or string
// type as an argument and returns 'a' if the contents
// of the vector is ascending, 'd' if descending and 'u'
// if it is neither. A vector of zero or one items is
// considered 'u'. The CheckOrder() signature is below.
template <typename T>
char CheckOrder(vector<T> v);

char DataType(string items);

int main(int argc, char* argv[]) {
// Read in items
string items, str_item = "";
char char_item = ' ';
int int_item = 0;
double double_item = 0.0;;
vector<string> sv;
vector<int> iv;
vector<double> dv;
vector<char> cv;

getline(cin, items);
while (!cin.eof()) {
// check for the type of data: DataType returns 'c' for char,
// 'd' for double, 'i' for int, and 's' for string
char type = DataType(items);

// populate the vector
switch (type) {
case 'c': cv = GetVector(items, char_item);
cout << "Order: " << CheckOrder(cv) << endl;
break;
case 'd': dv = GetVector(items, double_item);
cout << "Order: " << CheckOrder(dv) << endl;
break;
case 'i': iv = GetVector(items, int_item);
cout << "Order: " << CheckOrder(iv) << endl;
break;
default : sv = GetVector(items, str_item);
cout << "Order: " << CheckOrder(sv) << endl;
break;
}
getline(cin, items);
}

return 0;
}

char DataType(string items) {
bool chars = true;
bool strings = true;
bool ints = true;
bool doubles = true;

for (auto c : items) {
if (isalpha(c)) { ints = false; doubles = false; }
if (c == '.') { ints = false; }
}

if (ints) { return 'i'; }
if (doubles) { return 'd'; }

stringstream ss(items);
string s;

while (ss >> s) {
if (s.length() > 1) { chars = false; }
}

if (chars) { return 'c'; }

return 's';
}

Views are virtual in database but Materialized view are persistent. Discuss the need to have materialized view instead of views and in what condition No materialization if preferred.

Write a C++ program which performs a rot 13 substitution. Must be in C++. Thank you.

Scientific Computing course - I honestly dont know what this question means, we use python in this course. Not sure if that helps with answering this question.

Write an algorithm/pseudo code to transpose an nxn matrix.

Specify any four difference between Client/Server computing and Peer-to-Peer computing. Which architecture used by Bitcoin digital currency?

The Central Processing Unit consist of three main units. List these three units and discuss the functionality of each.

Goals

In this assignment you must use Java language to program the small application for a grocery buyer.

You will create meaningful utility that implements

1. simple math model for real problem;
2. design of the application logic;
3. basic user interface.

The implementation plus coding style and efficiency will be graded.

Description

The supermarket uses three pricing scenarios for the local products –

1. Monday, Wednesday, and Friday, the product A has fixed regular price of X dollars.
2. Tuesday and Thursday, the product A has price of X dollars, but you can buy three A-product items for Y dollars with 10% discount (Y = 3 * X * 90%).
3. On the weekend, the product A has price of X dollars, but you can buy two and get one for free.

Your application must calculate how much you pay for one item depending on a regular price, day of the week, and number of items.

For example, yogurt has regular price of $3. Then, if you buy 3 yogurts on Sunday your spending will be $2 per item.

It is not as simple as it first appears. Consider the following questions before programming:

1. Are price and how much you pay the same things?
2. In the scenarios 2 and 3, how much you pay for one item if you buy 4 or 5?
3. What is the money value of 1000 item if the product is priced using scenario 2?
4. Does fractional money exist?

Program requirements

1. The inputs for your program are name of the product, regular price for the product, number of items, and day of the week. You may use information from any local grocery store to create a list of 5-7 products to test your program.
2. Your program must calculate how much you pay for the one unit of the product.
3. The output must be in a form “… dollars … cents.”
4. The program must run until the user decides to quit.
5. The program must use methods and branches.
6. Rounding to the cents must be programmed (do not use standard methods).

There is no any sample run, just need a JAVA program to conform the above requirements.

complete all methods in java!
/*
Note:   Do not add any additional methods, attributes.
        Do not modify the given part of the program.
        Run your program against the provided Homework2Driver.java for requirements.
*/

/*
Hint:   This Queue implementation will always dequeue from the first element of
        the array i.e, elements[0]. Therefore, remember to shift all elements
        toward front of the queue after each dequeue.
*/

public class QueueArray<T> {
    public static int CAPACITY = 100;
    private final T[] elements;
    private int rearIndex = -1;
   
    public QueueArray() {
    }

    public QueueArray(int size) {
    }
   
    public T dequeue() {

    }
   
    public void enqueue(T info) {

    }
   
    public boolean isEmpty() {
       
    }
   
    public boolean isFull() {
       
    }
   
    public int size() {
       
    }
}

What is the public interface of counter class in section 3.1 ? How does it differ from the implementation of the class?

In C, write a function that inserts a new node by taking four arguments, a head, tail, current node, and new node pointers. If head is NULL, perform head insertion, otherwise transverse the linked list recursively by using current node pointer. Terminate when the current node points at the tail after inserting new node at tail and pointing tail at new node.

Please use C programming to write the code to solve the following problem. Also, please use the instructions, functions, syntax and any other required part of the problem. Thanks in advance. Use these functions below especially:

void inputStringFromUser(char *prompt, char *s, int arraySize);

void songNameDuplicate(char *songName);

void songNameFound(char *songName);

void songNameNotFound(char *songName);

void songNameDeleted(char *songName);

void artistFound(char *artist);

void artistNotFound(char *artist);

void printMusicLibraryEmpty(void);

void printMusicLibraryTitle(void);

const int MAX_LENGTH = 1024;

You will write a program that maintains information about your personal music library using a Linked List data structure. The program will allow you to add and delete entries from your personal music library, to search your personal music library for songs by song name, and to print out the entire list of your library. This lab will be due in the week of April 1.

Your Personal Music Library. The data in your personal music library will be stored in memory with the use of a linked list, with one list node per song. Each node will contain three strings: a song’s name, its artist, and its genre (the type of music). The linked list must be kept in sorted alphabetical order, by song name, beginning with A through Z (i.e. increasing alphabetical order). No two songs in your personal music library should have the same name. Your program should be “menu” driven, with the user being offered a choice of the following five “commands”:
• Command I. Insert a new song into the library. The program should prompt the user for a new song name, its artist’s name, and its genre. This information must be placed in a new node that has been created using the malloc function (to be clear, you must use malloc for this purpose). This node should then be inserted at the appropriate (alphabetical) position in the linked list. Don’t forget that the music library must be stored in increasing order, by song name. If a node with the given song name is already in the music library, an error message should be output, and the new node should not be inserted into the linked list.
• Command D. Delete an entry from your the library. The program should prompt the user for the name of the song to be deleted, and then find and delete the node containing that song name from the library. If no node with the given song name is found, an error message should be output. All memory allocated for a deleted entry must be released back to the system using the free function. This includes not only the memory allocated for the node, but also the strings in the node that would have been separately allocated.
• Command S. Search for a user supplied song name in the library. The program should print the name, artist, and genre of the song, with each piece of information on a separate line. If no node with the given song name is found, an error message should be output.
• Command P. Print your personal music library, in alphabetical order by song name. Print the song name, artist, and genre of each song, each on a separate line. A blank line should be printed between each song.
• Command Q. Quit the program. When the program is given the Q command, it should delete all of the nodes in the linked list, including all the strings contained

in each node. Deletion means both removing from the list, but also freeing all dynamically allocated memory using call the free function. It should then print the (what should be an empty) linked list.
To assist you in the production of your program, we have provided you with a file, musiclibrary.c, that contains part of the complete program. This program is provided on the course website along with this lab. This “skeleton” of the lab 9 program includes all of the C statements required to implement the menu driven parts of the program. It also includes a few helpful functions for reading data and printing messages. You should take this file and edit it to become your version of Lab9.c. Note, however, that you may not change any of the code in the existing implementation of the skeleton program, except where indicated in comments. In particular, you must use the inputStringFromUser() function and the prompts provided to obtain inputs from the user, and you must use the given Node structure. In addition we strongly recommend that you do your work for this lab in the following way:

• Read the entire skeleton program carefully. Take note of the provided functions for reading strings, printing the name, artist and genre of a song, and for printing error messages. Using these functions will make it easier for you to satisfy the exercise and marker programs.
• Add the function for inserting a new node(the I command) into the linked list. Your function will need to read the name, artist, and genre of a song. Test your program by trying to insert nodes into the linked list. Try to insert nodes with both new and duplicate song names.
• Add a function for printing the linked list (the P command). Test your program by inserting songs into the linked list and then printing them out. Are the entries in the correct order? • Add a function that searches the linked list for a given song name and then either prints the appropriate song or, if a node is not found, prints an error message. This is the S command.
• Add the statements that need to be executed when the Q command is entered. These statements should delete the linked list by using calls to the free function. To check your work, print the linked list after the elements have been deleted. • Add a function for deleting a song from the personal music library. It will need to search the linked list for a given song name, delete the appropriate node from the linked list, and then use the free function to release the memory used to store the node, as well as all the memory that the node uses for storing strings. If the given song name is not found in the music library, print an error message.
We recommend that you test your program after attempting to complete each step. This way, if your program no longer works, you will know which statements are causing the error. Complete each step before moving on to the next one.

Sample Output From Executing The Program
Here is a sample output from an execution of the program that you are to prepare.

Personal Music Library.
Commands are I (insert), D (delete), S (search by song name), P (print), Q (quit).
Command --> P
The music library is empty.
Command --> I
Song name --> The Shade
Artist --> Metric
Genre --> Rock

Command --> I
Song name --> Heads Will Roll
Artist --> Yeah Yeah Yeahs
Genre --> Punk

Command --> I
Song name --> Bad Boys Need Love Too
Artist --> Bahamas (Afie Jurvanen)
Genre --> Folk

Command --> P

My Personal Music Library:

Bad Boys Need Love Too
Bahamas (Afie Jurvanen)
Folk

Heads Will Roll
Yeah Yeah Yeahs
Punk

The Shade
Metric
Rock

Command --> I
Song name --> Heads Will Roll
Artist --> Yeah Yeah Yeahs
Genre --> Punk

A song with the name 'Heads Will Roll' is already in the music library.
No new song entered.

Command --> I
Song name --> Adult Diversion
Artist --> Alvvays
Genre --> Pop

Command --> P

My Personal Music Library:

Adult Diversion
Alvvays
Pop

Bad Boys Need Love Too
Bahamas (Afie Jurvanen)
Folk

Heads Will Roll
Yeah Yeah Yeahs
Punk

The Shade
Metric
Rock

Command --> S

Enter the name of the song to search for --> Bad Boys Need Love Too

The song name 'Bad Boys Need Love Too' was found in the music library.

Bad Boys Need Love Too
Bahamas (Afie Jurvanen)
Folk

Command --> S

Enter the name of the song to search for --> Young Blood

The song name 'Young Blood' was not found in the music library.

Command --> D

Enter the name of the song to be deleted --> The Shade

Deleting a song with name 'The Shade' from the music library.

Command --> P

My Personal Music Library:

Adult Diversion
Alvvays
Pop

Bad Boys Need Love Too
Bahamas (Afie Jurvanen)
Folk

Heads Will Roll
Yeah Yeah Yeahs
Punk

Command --> Q

Deleting a song with name 'Adult Diversion' from the music library.

Deleting a song with name 'Bad Boys Need Love Too' from the music library.

Deleting a song with name 'Heads Will Roll' from the music library.

The music library is empty.

You have 21 cards written from 1 to 21. The number K is inputted from a command window (using input command). First, please shuffle these 21 cards such that the sequence becomes random (using rand command). You need to make a function of New_Cards=shuffle(Orig_Card), where New_Cards is a 1X21 vector that has random sequence of the cards (Ex. New_Cards=[ 14 7 21 6….. 9 1 3 5 8]). When the first even number is greater than K, you should print in the command window saying that ‘You win!’, otherwise ‘You lost!’. K should be set as a global variable in the main cell. Please create a function of Output = game(New_Cards). Output is 1 when the first even number is greater than K, and it is 0 when the first even number is less than K.(Using Matlab)