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- Which INT 21h function would you call if you wanted to make a file read-only?Using C++, write a fragment of code to open a file called random.txt. If the file does not exist, create and open it for both input and output. Then, write 10 consecutive random numbers in the range of 1 to 10 into the file13. Write function quote() that takes as input the name of a file (as a string) and anindex i (as an integer). The file will contain quotes, one per line. The function shouldopen the file, read the file, close the file, and return the i-th quote (i.e. the i-th line in thefile), assuming that the quote numbering starts at 0. Test your solution onfile Wilde_Quotes.txt.>>> quote("Wilde_Quotes.txt", 5)'At twilight, nature is not without loveliness, thoughperhaps its chief use is to illustrate quotations from thepoets.\n'>>> quote("Wilde_Quotes.txt", 0)'A little sincerity is a dangerous thing, and a great dealof it is absolutely fatal.\n'>>> quote("Wilde_Quotes.txt", 23)'Patriotism is the virtue of the vicious. \n'>>>
- Write a short notes on the following appending to a file deleting a file- Print the Movie names, list of actors/actresses, ratings(number of tickets sold), ticket prices, cost of production and the total net profit of each movie(net_profit_of_movie)b) Write a function that calculates the net_profit_of_movie; which is the multiplication of ticket prices and ratings(number of tickets sold), subtracted by cost of production c) In main call function, print all movies’ information and the net_profit_of_movie to the console. d) Create a file called movies.txt and write all movies information to the file, including the net_profit_of_movie per movie. e) Ask the user to add more movies (use realloc). The user needs to write at least 1 more movie (e.g. movie 4) then get all information for the new movies from the user. Create a file called UpdatedMovies.txt and write all movie data including the lately added movies’ data onto the file UpdatedMovies.txt.f) Write (Mohammad) and (63223) at the top of the code. g) Write explanatory comments for your codeFinish the C++ code. Suppose the file nums.txt contains the following data:
- Create a new file (in Dev C++) and save it as lab11_XYZ.cpp (replace XYZ with your initials). Create ANOTHER new file (in Dev C++) and save it as swap_XYZ.h (replace XYZ with your initials). Use the swap_XYZ.h header file to define a set of functions for swapping two items of the same type. Given the following prototypes, define (overloaded) swap functions void swap(int&, int&); //swap two integers void swap(double&, double&); //swap two doubles void swap(float&, float&); //swap two floats void swap(char&, char&); //swap two characters void swap(string&, string&); //swap two strings The header file should contain the following: header comments (similar to normal program header comments) function definitions (for you to do, based on provided prototypes above...) In general, a swap works like this: void swap(type first&, type second&){ type temp = first; first = second; second = temp; } Once your header file is complete, make…Create a new file (in Dev C++) and save it as lab11_XYZ.cpp (replace XYZ with your initials). Create ANOTHER new file (in Dev C++) and save it as swap_XYZ.h (replace XYZ with your initials). Use the swap_XYZ.h header file to define a set of functions for swapping two items of the same type. Given the following prototypes, define (overloaded) swap functions void swap(int&, int&); //swap two integers void swap(double&, double&); //swap two doubles void swap(float&, float&); //swap two floats void swap(char&, char&); //swap two characters void swap(string&, string&); //swap two strings The header file should contain the following: header comments (similar to normal program header comments) function definitions (for you to do, based on provided prototypes above...) In general, a swap works like this: void swap(type first&, type second&){ type temp = first; first = second; second = temp; } Once your header file is complete, make…write you c++ code to read a file contains simple +/- maths equations and change it to plus and minus input file example: A+B, 10+20,30-50,8=100output file example A plus B , 10 Plus 20 , 30 minus 50 , 8 plus 100
- (5) Write a function called copy_even_lines() that takes two strings (filenames) as input parameters and copies every other line from the first file into the second. That is, counting from 0, it copies the 0th line, the 2nd line, the 4th line, etc. from the first file to the second file. You may assume that both files exist. (6) Write a python program that asks the user for two filenames and calls your function copy_even_lines() from (5) using those two filenames. If one or more files do not exist, your program must handle the exception by repeating the prompts until valid filenames are entered.Section 1 Write a program that reads student’s IDs and exam scores (type int) for a particular exam in a course from each line of an input file (the input file is included). You need to compute the average of these scores and assign grades to each student according to the following regulation: If a student’s score is within 10 points (above or below) of the average, assign a grade of satisfactory. If a student’s score is more than 10 points above average, the grade will be outstanding. If a student’s score is more than 10 points below the average, the grade will be unsatisfactory. The output of your program should consist of a three-column table that shows each ID, score, and corresponding grade. A sample output is shown below. Section 2 Redo the previous project described in Section 1 using a struct to store each student’s data and an array of structs to store the whole class. The struct should have data members for id, score, and grade.Plz I want you to rewrite this code in a good form // Include all the necessary libraries.#include <fstream>#include <iostream>#include <stdio.h>#include <string.h> using namespace std; class Student(){// Considering the max length of data entered (name) to// be 15.char data[15],data1[15];int n = 0, option = 0, count_n = 0;int m = 0, count_m = 0;// This is the initial mark alloted to a subject.string empty = "00";// Name of the file in which DB is stored.ifstream f("Example.txt");string line; // The following for loop counts the total number of// lines in the file.for (int i = 0; std::getline(f, line); ++i) {count_n++;} while (option != 6) {// This prints out all the available options in thecout << "WELCOME TO TECHNOLOGY COLLEGE MUSCAT"cout << "\nAvailable operations: \n1. Add New ""Students\n2."<< "Student Show\n3"<< "6. Exit\nEnter option: ";cin >> option; if (option == 1) {insert();}else if (option == 2) {show();}}} void…