use c++ to Implement a city database using a BST to store the database records. Each database record contains the name of the city (a string of arbitrary length) and the coordinates of the city expressed as integer x- and y-coordinates. The BST should be organized by city name. Your database should allow records to be inserted, deleted by name or coordinate, and searched by name or coordinate. Another operation that should be supported is to print all records within a given distance of a specified point. Collect running-time
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- Write a program in C++ that prints a sorted phone list from a database of names and phone numbers. The data is contained in two files named "phoneNames.txt" and "phoneNums.txt". The files may contain up to 2000 names and phone numbers. The files have one name or one phone number per line. To save paper, only print the first 50 lines of the output. Note: The first phone number in the phone number file corresponds to the first name in the name file. The second phone number in the phone number file corresponds to the second name in the name file. etc. You will find the test files in the Asn Five.zipYou will write a C++ program to process the lines in a text file using a linked list ADT and raw pointers. Node class You will create a class “Node” with the following private data attributes: line – line from a file (string) next - (pointer to a Node) Put your class definition in a header file and the implementation of the methods in a .cpp file.Follow the style they use in the book of having a "#include" for the implementation file at the bottom of the header file. You will have the following public methods: Accessors and mutators for each attribute Constructor that initializes the attributes to nulls (empty string and nullptr) LinkedList class You will create a class “LinkedList” with the following private data attributes: headPtr – raw pointer to the head of the list numItems – number of items in the list Put your class definition in a header file and the implementation of the methods in a .cpp file.Follow the style they use in the book of having a "#include" for the…Implement in C Programming 9.10.1: LAB: Movie show time display Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator ('|') in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Hints: Use…
- When using a C++ inclusion guard on a library interface file, why is it essential that the symbol or name used in the guard not be identical to any other uses of the symbol or name in the guard? Assuming that the symbol does not need to be unique and then showing what occurs when two libraries that are to be #included in the same application share the same symbol is an effective use of the proof by contradiction technique in this circumstance. Here, we have an actual application.Write a small library in the C programming language to do Minifloat (Links to an external site.) (8-bit binary floating-point numbers) operations. Notes You have to come up with a sensible representation and stay consistent throughout a library. The internal representation (e.g. a struct) does not have to match the external representation (e.g. just a binary pattern, or a pointer to an abstract data type). Be careful of memory leaks. For example, do not return a pointer to a local static variables in a function. Instead, allocate on the heap with malloc and then return the pointer to that. Minimum requirements Meeting these requirements will collect the regular points. add - Add two Minifloat numbers and return the result. mult - Multiply two Minifloat numbers and return the result.Write a C++ program to process the lines in a text file using a linked list ADT and raw pointers. Node class You will create a class “Node” with the following private data attributes: line – line from a file (string) next - (pointer to a Node) Put your class definition in a header file and the implementation of the methods in a .cpp file.Follow the style they use in the book of having a "#include" for the implementation file at the bottom of the header file. You will have the following public methods: Accessors and mutators for each attribute Constructor that initializes the attributes to nulls (empty string and nullptr) LinkedList class You will create a class “LinkedList” with the following private data attributes: headPtr – raw pointer to the head of the list numItems – number of items in the list Put your class definition in a header file and the implementation of the methods in a .cpp file.Follow the style they use in the book of having a "#include" for the…
- A ledger is a list of transactions of the form: class Transaction(val amt: Double, val fromAcct: Int, val toAcct: Int) The balance function computes the balance of any account in the ledger: def balance(acct: Int, ledger: List[Transaction]): Double = ??? Could you please implement balance function as a pipeline or using tail recursion in scala?In C++, how simple is it to duplicate an array of shared pointers into a new array? Create a list of potential solutions to the issue at hand. Do the objects controlled by a shared pointer also get copied when it's copied? ExplainWrite a Perl program that uses a hash and a large number of operationson the hash. For example, the hash could store people’s names and theirages. A random-number generator could be used to create threecharacter names and ages, which could be added to the hash. When aduplicate name was generated, it would cause an access to the hash butnot add a new element. Rewrite the same program without using hashes.Compare the execution efficiency of the two. Compare the ease ofprogramming and readability of the two.
- The following java function executes an SQL query based on the inputs from the combo boxes and text box from the screen shown and is supposed to return a list of items that match the query. The input string is a string of the field, operator and criteria text from the boxes separated by commas. However, the method is not currently functional and must be modified to enact the query. Modifiy the function so that it works properly. An image of the database schema has also been attached as well as the product class. public List<Product> getProductByCriteria(String criteria) { if (openConnection()) { try { List<Product> items = new ArrayList<>(); Product temp = null; String[] fields = criteria.split(","); String query = "SELECT * FROM products WHERE " + fields[0] + fields[1] + fields[2]; stmt = conn.prepareStatement(query); ResultSet rs = stmt.executeQuery(); while…Please write in C++ and run in linux. This assignment is about fork(), exec(), and wait() system calls, and commandline arguments. Write two C++ programs, to be named parent.cc and child.cc and compiled into executable parent and child, respectively that, when run, will work as follows: parent takes in a list of gender-name pairs from the commandline arguments creates as many child processes as there are in the gender-name pairs and passes to each child process a child number and a gender-name pair waits for all child processes to terminate outputs “All child processes terminated. Parent exits.” And terminates. child receives a child number and one gender-name pair arguments from parent outputs “Child # x, a boy (or girl), name xxxxxx.” Note: content of output depends on data received from parent Sample run To invoke the execution: >parent girl Nancy boy Mark boy Joseph parent process does the following: outputs “I have 3 children.” -- Note: the number 3…Write a c++ program that determines whether or not a string of alphanumeric characters is a palindrome. Ignore any whitespace characters or punctuation when processing the string. You will be required to demonstrate pointer math and dereferencing. You will be required to separate your interface from your implementation; you must have a header file (.h) for your interface, and a source file (.cpp) for your implementation. Be sure to perform data validation on your input to prevent buffer overflows. Your code should present the user with prompts similar to the following: (image included) Here are some example palindromes you can test with: Mr. Owl ate my metal wormDo geese see God?Was it a car or a cat I saw?Murder for a jar of red rumA nut for a jar of tunaGo hang a salami, I'm a lasagna hog!