diff options
33 files changed, 0 insertions, 2210 deletions
diff --git a/Utills/BigFour.cpp b/Utills/BigFour.cpp deleted file mode 100644 index 383440d..0000000 --- a/Utills/BigFour.cpp +++ /dev/null @@ -1,89 +0,0 @@ - -#include <iostream> -#include <cstring> - -using namespace std; - -class Student -{ - char* name; - int* grades; - size_t gradesSize; - - void free() - { - delete[] name, grades; - } - - void copyFrom(const Student& other) - { - setName(other.name); - setGrades(other.grades); - } - - public: - - Student() : name(nullptr), grades(nullptr) {} - - Student(const Student& other) - { - copyFrom(other); - } - - Student& operator=(const Student& other) - { - if (this != &other) - { - free(); - copyFrom(other); - } - return *this; - } - - ~Student() - { - free(); - } - - const char* getName() const - { - return name; - } - - const int* getGrades() const - { - return grades; - } - - void setName(const char* givenName) - { - if(givenName == nullptr || givenName == name) - return; - delete[] name; - name = new char[strlen(givenName) + 1]; - strcpy(name, givenName); - } - - void setGrades(const int* givenGrades, size_t size) - { - if(givenGrades == nullptr || givenGrades == grades) - return; - - delete[] grades; - - grades = new int[size]; - for(size_t i = 0; i< size; i++) - grades[i] = givenGrades[i]; - gradesSize = size; - } - - -}; - -int main() -{ - - - return 0; -} - diff --git a/Utills/Kindle/Book.cpp b/Utills/Kindle/Book.cpp deleted file mode 100644 index 8bfb050..0000000 --- a/Utills/Kindle/Book.cpp +++ /dev/null @@ -1,174 +0,0 @@ -#include "Book.h"
-#include<iostream>
-
-void Book::addRating(unsigned short r, const string& name) {
- if (r > 10)
- return;
-
- int raterIndex = -1;
-
- for (size_t i = 0; i < ratings.getSize(); i++) {
- if (name == ratings[i].getFirst()) {
- raterIndex = i;
- break;
- }
- }
-
- if (raterIndex != -1)
- ratings[raterIndex].setSecond(r);
- else {
- Pair<string, unsigned> toPush(name, r);
- ratings.pushBack(std::move(toPush));
- }
-}
-
-void Book::print() const {
- std::cout << title << " by: " << author << std::endl;
-}
-
-Book::Book(const string& pAuthor, const string& pTitle) {
- author = pAuthor;
- title = pTitle;
-}
-
-void Book::writeToFile(std::ofstream& outFile) const {
- writeString(outFile, author); // Author
- writeString(outFile, title); // Title
-
- // Write pages to file
- int len = data.getSize();
- outFile.write((const char*)&len, sizeof(len));
-
- for (size_t i = 0; i < len; i++)
- data[i].writeToFile(outFile);
-
- // Write comments to file:
- int commentsLen = comments.getSize();
- outFile.write((const char*)&commentsLen, sizeof(commentsLen));
- for (size_t i = 0; i < commentsLen; i++)
- writeCommentsToFile(outFile, comments[i]);
-
- // Write rates to file:
- int ratesCount = this->ratings.getSize();
- outFile.write((const char*)&ratesCount, sizeof(ratesCount));
- for (size_t i = 0; i < ratesCount; i++)
- writeRatesToFile(outFile, ratings[i]);
-}
-
-void Book::readFromFile(std::ifstream& inFile) {
- author = readString(inFile); // Author
- title = readString(inFile); // Title
-
- // Read pages:
- int len = 0;
- inFile.read((char*)&len, sizeof(len));
-
- for (size_t i = 0; i < len; i++) {
- data.pushBack(Page());
- data[i].readFromFile(inFile);
- }
-
- // Read comments
- int commentsLen = 0;
- inFile.read((char*)&commentsLen, sizeof(commentsLen));
-
- for (size_t i = 0; i < commentsLen; i++) {
- Pair<string, string> toInsert = readCommentsFromFile(inFile);
- comments.pushBack(std::move(toInsert));
- }
-
- // Read rates from file
- int ratesCount = 0;
- inFile.read((char*)&ratesCount, sizeof(ratesCount));
- for (size_t i = 0; i < ratesCount; i++) {
- Pair<string, unsigned> toPush = readRatesFromFile(inFile);
- ratings.pushBack(std::move(toPush));
- }
-}
-
-double Book::getAvarageRating() const {
- double sum = 0;
- for (size_t i = 0; i < ratings.getSize(); i++)
- sum += ratings[i].getSecond();
-
- return sum / (double)(ratings.getSize());
-}
-
-void Book::write(unsigned pagesCount) {
- unsigned short lines = 0;
-
- for (int i = 0; i < pagesCount; i++) {
- std::cout << "Enter lines in page " << i + 1 << ": ";
- std::cin >> lines;
- std::cin.ignore();
- Page toInsert;
-
- toInsert.write(lines);
-
- data.pushBack(std::move(toInsert));
- }
-}
-
-void Book::displayBook() const {
- bool reading = true;
- bool displayMenu = true;
- unsigned pageNumber = 0;
-
- char cmd = '\0';
- unsigned pageIndex = 0;
-
- while (reading) {
- system("cls");
- if (displayMenu)
- displayHelpMenu();
-
- data[pageIndex].displayPage();
-
- std::cin.get(cmd);
-
- switch (cmd) {
- case 'n':
- if (pageIndex < data.getSize() - 1)
- pageIndex++;
- break;
- case 'p':
- if (pageIndex > 0)
- pageIndex--;
- break;
- case 'h':
- displayMenu = !displayMenu;
- break;
- case 'q':
- reading = false;
- break;
- case '@':
- std::cin >> pageNumber;
- if (pageNumber >= 1 && pageNumber < data.getSize() + 1)
- pageIndex = pageNumber - 1;
- break;
- default:
- break;
- }
- }
- system("cls");
-}
-
-void Book::showComments() const {
- for (size_t i = 0; i < comments.getSize(); i++)
- std::cout << comments[i].getFirst() << " wrote: " << comments[i].getSecond() << std::endl;
-}
-
-void Book::showRates() const {
- for (size_t i = 0; i < ratings.getSize(); i++)
- std::cout << ratings[i].getFirst() << ": " << ratings[i].getSecond() << " start" << std::endl;
- std::cout << std::endl;
-
- std::cout << "Avarage rate: " << getAvarageRating() << std::endl;
-}
-
-void Book::displayHelpMenu() const {
- std::cout << "Entered reader mode." << std::endl
- << "Press n for next, p for prev." << std::endl <<
- "Press @ + <number> to go to that page" << std::endl <<
- "Press h to hide or show this menu or q to exit" << std::endl;
-}
diff --git a/Utills/Kindle/Book.h b/Utills/Kindle/Book.h deleted file mode 100644 index 29c4f13..0000000 --- a/Utills/Kindle/Book.h +++ /dev/null @@ -1,34 +0,0 @@ -#pragma once
-#include"vector.hpp"
-#include"Page.h"
-#include"Pair.hpp"
-#include"serialize.h"
-
-class Book {
-private:
- string author;
- string title;
- Vector<Pair<string, unsigned>> ratings; // User name + rate
- Vector<Page> data; // Pages
- Vector<Pair<string, string>> comments; // commenter's name + comment
-
- void addRating(unsigned short r, const string& name);
-
- void write(unsigned pagesCount);
- void displayBook() const;
-
- void showComments() const;
- void showRates() const;
- void print() const;
- void displayHelpMenu() const;
-public:
- Book() {}
- Book(const string& author, const string& title);
-
- void writeToFile(std::ofstream& outFile) const;
- void readFromFile(std::ifstream& inFile);
- double getAvarageRating() const;
-
- friend class Kindle;
-};
-
diff --git a/Utills/Kindle/Kindle.cpp b/Utills/Kindle/Kindle.cpp deleted file mode 100644 index 84477d2..0000000 --- a/Utills/Kindle/Kindle.cpp +++ /dev/null @@ -1,354 +0,0 @@ -#include "Kindle.h"
-
-void Kindle::displayUserDialog(User& currentUser) {
- std::cout << "Wellcome, " << currentUser.name << std::endl;
- string cmd;
-
- while (!(cmd == "exit")) {
- std::cout << "> ";
- std::cin >> cmd;
- if (cmd == "read") {
- readBookDialog(currentUser);
- }
- else if (cmd == "rate") {
- rateBookDialog(currentUser);
- }
- else if (cmd == "comment") {
- commentOnBookDialog(currentUser);
- }
- else if (cmd == "write") {
- writeBookDialog(currentUser);
- }
- else if (cmd == "comments") {
- displayCommentsDialog();
- }
- else if (cmd == "view") {
- viewBooks();
- }
- else if (cmd == "rates") {
- displayRatesDialog();
- }
- }
-
- std::cout << "Exit user dialog" << std::endl;
-}
-
-void Kindle::saveFileDialog() const {
- string path;
- std::cout << "Enter path: ";
- std::cin >> path;
- saveToFile(path.c_str());
-}
-
-void Kindle::readFileDialog() {
- std::cout << "Enter path: ";
- string path;
- std::cin >> path;
- readFromFile(path.c_str());
-}
-
-void Kindle::showHelpDialog() const {
- std::cout << "Write one of the following commands and press enter: " << std::endl
- << "| login | signup | load | saveas | view | exit" << std::endl <<
- "Press any key to exit" << std::endl;
- std::cin.get();
-
- std::cin.clear();
- std::cin.ignore(255, '\n');
-}
-
-void Kindle::saveToFile(const char* filePath) const {
- std::ofstream outFile(filePath, std::ios::binary);
-
- if (!outFile)
- return;
-
- outFile.write("#Ty", 4);
-
- size_t sizeOfLib = lib.getSize();
- size_t sizeOfUsers = users.getSize();
- // Write lib:
- outFile.write((const char*)&sizeOfLib, sizeof(sizeOfLib));
-
- for (size_t i = 0; i < sizeOfLib; i++)
- lib[i].writeToFile(outFile);
-
- // Save users:
- outFile.write((const char*)&sizeOfUsers, sizeof(sizeOfUsers));
-
- for (size_t i = 0; i < sizeOfUsers; i++)
- users[i].writeToFile(outFile);
-
- std::cout << "Saving success!" << std::endl;
-}
-
-void Kindle::readFromFile(const char* filePath) {
- std::ifstream inFile(filePath, std::ios::binary);
-
- if (!inFile) {
- std::cout << "File does not exist" << std::endl;
- return;
- }
-
- char typeChecker[4];
- inFile.read(typeChecker, 4);
- if (strcmp(typeChecker, "#Ty") != 0) {
- std::cout << "Invalid file type" << std::endl;
- return;
- }
-
- size_t sizeOfLib = 0;
- size_t sizeOfUsers = 0;
-
- // Read lib
- inFile.read((char*)&sizeOfLib, sizeof(sizeOfLib));
-
- for (size_t i = 0; i < sizeOfLib; i++) {
- lib.pushBack(Book());
- lib[i].readFromFile(inFile);
- }
-
- // Read users:
- inFile.read((char*)&sizeOfUsers, sizeof(sizeOfUsers));
-
- for (size_t i = 0; i < sizeOfUsers; i++) {
- users.pushBack(User());
- users[i].readFromFile(inFile);
- }
-
- std::cout << "Reading success!" << std::endl;
-}
-
-int Kindle::findBookIndex(const string& name) const {
- for (size_t i = 0; i < lib.getSize(); i++)
- if (name == lib[i].title)
- return i;
- return -1;
-}
-
-int Kindle::findUserIndex(const string& name) const {
- for (size_t i = 0; i < users.getSize(); i++)
- if (name == users[i].name)
- return i;
- return -1;
-}
-
-bool Kindle::userReadTheBook(const User& currentUser, int bookIndex) const {
- for (size_t i = 0; i < currentUser.indexesOfBooksRead.getSize(); i++)
- if (currentUser.indexesOfBooksRead[i] == bookIndex)
- return true;
- return false;
-}
-
-bool Kindle::existUser(const string& userName) const {
- for (size_t i = 0; i < users.getSize(); i++)
- if (userName == users[i].name)
- return true;
- return false;
-}
-
-void Kindle::readBookDialog(User& reader) {
- std::cout << "Which book would you like to read: ";
- string bookName;
- std::cin.ignore();
- bookName.getLine(std::cin);
-
- int indexOfBook = findBookIndex(bookName);
- if (indexOfBook == -1) {
- std::cout << "No such book" << std::endl;
- return;
- }
- if (!(reader.name == lib[indexOfBook].author) && !userReadTheBook(reader, indexOfBook))
- reader.indexesOfBooksRead.pushBack(indexOfBook);
-
- lib[indexOfBook].displayBook();
-}
-
-void Kindle::rateBookDialog(const User& rater) {
- std::cout << "Enter a book you'd line to rate: ";
- string bookName;
- std::cin.ignore();
- bookName.getLine(std::cin);
-
- int bookIndex = findBookIndex(bookName);
-
- if (bookIndex == -1) {
- std::cout << "No such book" << std::endl;
- return;
- }
-
- if (rater.name == lib[bookIndex].author) {
- std::cout << "You can't rate your own book" << std::endl;
- return;
- }
-
- unsigned short rate = 0;
- std::cout << "Enter rate: ";
- std::cin >> rate;
-
- lib[bookIndex].addRating(rate, rater.name);
-}
-
-void Kindle::commentOnBookDialog(const User& commenter) {
- std::cout << "Enter a book you would like to comment: ";
- string bookName;
- std::cin.ignore();
- bookName.getLine(std::cin);;
-
- int index = findBookIndex(bookName);
-
- if (index == -1) {
- std::cout << "No such book";
- return;
- }
-
- std::cout << "Enter comment: ";
- string comment;
- comment.getLine(std::cin);
- if (commenter.name == lib[index].author || userReadTheBook(commenter, index)) {
- Pair<string, string> toAdd(commenter.name, std::move(comment));
- lib[index].comments.pushBack(std::move(toAdd));
- }
- else {
- std::cout << "You havent read the book" << std::endl;
- return;
- }
-}
-
-void Kindle::writeBookDialog(User& writer) {
- std::cout << "Enter title: ";
- string title;
-
- std::cin.ignore();
-
- title.getLine(std::cin);
-
- Book toAdd(writer.name, title);
-
- std::cout << "Enter pages count: ";
- unsigned pagesCount = 0;
- std::cin >> pagesCount;
-
- std::cin.ignore();
-
- toAdd.write(pagesCount);
- writer.indexesOfBooksWritten.pushBack(lib.getSize());
- lib.pushBack(std::move(toAdd));
-}
-
-void Kindle::displayCommentsDialog() const {
- std::cout << "Enter book name: ";
- string bookName;
- std::cin.ignore();
- bookName.getLine(std::cin);;
-
- int indexOfBook = findBookIndex(bookName);
-
- if (indexOfBook == -1) {
- std::cout << "No such book" << std::endl;
- return;
- }
-
- lib[indexOfBook].showComments();
-}
-
-void Kindle::displayRatesDialog() const {
- std::cout << "Enter book name: ";
- string bookName;
- std::cin.ignore();
- bookName.getLine(std::cin);
-
- int indexOfBook = findBookIndex(bookName);
-
- if (indexOfBook == -1) {
- std::cout << "No such book" << std::endl;
- return;
- }
-
- lib[indexOfBook].showRates();
-}
-
-void Kindle::viewBooks() const {
- for (size_t i = 0; i < lib.getSize(); i++)
- lib[i].print();
-}
-
-void Kindle::displayLoginDialog() {
- std::cout << "Enter user name: ";
- string userName;
-
- std::cin.ignore();
-
- userName.getLine(std::cin);
-
- int userIndex = findUserIndex(userName);
-
- if (userIndex == -1) {
- std::cout << "This user does not exist in our system\n";
- return;
- }
- string pwd;
- std::cout << "Enter password: ";
-
- pwd.getLine(std::cin);
-
- if (!(pwd == users[userIndex].password)) {
- std::cout << "Incorrect password.\n";
- return;
- }
-
- displayUserDialog(users[userIndex]);
-}
-
-void Kindle::displaySignupDialog() {
- std::cout << "Enter name: ";
- string name;
-
- std::cin.ignore();
-
- name.getLine(std::cin);
-
- if (existUser(name)) {
- std::cout << "User with that name already exist!" << std::endl;
- return;
- }
-
- std::cout << "Enter password: ";
- string password;
- password.getLine(std::cin);
-
- User toAdd(name, password);
- users.pushBack(std::move(toAdd));
- std::cout << "Successful!" << std::endl;
-}
-
-
-void Kindle::display() {
- string cmd;
- while (!(cmd == "exit")) {
- std::cout << "> ";
- std::cin >> cmd;
-
- if (cmd == "login" || cmd == "log in") {
- displayLoginDialog();
- }
- else if (cmd == "signup" || cmd == "sign up") {
- displaySignupDialog();
- }
- else if (cmd == "view") {
- viewBooks();
- }
- else if (cmd == "load") {
- readFileDialog();
- }
- else if (cmd == "save") {
- saveFileDialog();
- }
- else if (cmd == "help") {
- showHelpDialog();
- }
- else {
- std::cout << "Invalid command!" << std::endl;
- }
- }
-}
diff --git a/Utills/Kindle/Kindle.h b/Utills/Kindle/Kindle.h deleted file mode 100644 index 79bcbd3..0000000 --- a/Utills/Kindle/Kindle.h +++ /dev/null @@ -1,55 +0,0 @@ -#pragma once
-#include"vector.hpp"
-#include"Book.h"
-#include"User.h"
-#include"Pair.hpp"
-#include<iostream>
-#include<cstring>
-#include<fstream>
-
-class Kindle {
-private:
- Vector<Book> lib;
- Vector<User> users;
-
- // Helper functions
- int findBookIndex(const string& name) const;
- int findUserIndex(const string& name) const;
-
- // did user read the book?
- bool userReadTheBook(const User& currentUser, int bookIndex) const;
-
- // does user exist?
- bool existUser(const string& userName) const;
-
- // Functions used by user
- void readBookDialog(User& reader);
- void writeBookDialog(User& writer);
-
- void rateBookDialog(const User& rater);
- void commentOnBookDialog(const User& commenter);
-
- void displayCommentsDialog() const;
- void displayRatesDialog() const;
-
- // TODO: Change book (add or remove page etc.)
-
- // Functions used by main dialog
- void displayLoginDialog();
- void displaySignupDialog();
- void displayUserDialog(User& currentUser);
-
- void saveFileDialog() const;
- void readFileDialog();
-
- void viewBooks() const;
- void showHelpDialog() const;
-
- // read && write
- void saveToFile(const char* filePath) const;
- void readFromFile(const char* filePath);
-public:
- // The only function used by our Kindle class
- void display();
-};
-
diff --git a/Utills/Kindle/Page.cpp b/Utills/Kindle/Page.cpp deleted file mode 100644 index a905f25..0000000 --- a/Utills/Kindle/Page.cpp +++ /dev/null @@ -1,37 +0,0 @@ -#include "Page.h"
-
-void Page::write(unsigned linesCount) {
- if (linesCount > MAX_LINES_IN_PAGE)
- linesCount = MAX_LINES_IN_PAGE;
-
-
- for (size_t i = 0; i < linesCount; i++) {
- std::cout << i + 1 << " ";
- lines.pushBack(string());
-
- lines[i].getLine(std::cin);
- }
-}
-
-void Page::displayPage() const {
- for (size_t i = 0; i < lines.getSize(); i++)
- std::cout << lines[i] << std::endl;
-}
-
-void Page::writeToFile(std::ofstream& outFile) const {
- int len = lines.getSize();
- outFile.write((const char*)&len, sizeof(len));
-
- for (size_t i = 0; i < len; i++)
- writeString(outFile, lines[i]);
-}
-
-void Page::readFromFile(std::ifstream& inFile) {
- int len = 0;
- inFile.read((char*)&len, sizeof(len));
-
- for (size_t i = 0; i < len; i++) {
- string s = readString(inFile);
- lines.pushBack(std::move(s));
- }
-}
diff --git a/Utills/Kindle/Page.h b/Utills/Kindle/Page.h deleted file mode 100644 index e208691..0000000 --- a/Utills/Kindle/Page.h +++ /dev/null @@ -1,21 +0,0 @@ -#pragma once
-#include"vector.hpp"
-#include"string.h"
-#include<iostream>
-#include"serialize.h"
-
-const short MAX_LINES_IN_PAGE = 26;
-
-class Page {
-private:
- Vector<string> lines;
-
- void write(unsigned linesCount);
- void displayPage() const;
-
- void writeToFile(std::ofstream& outFile) const;
- void readFromFile(std::ifstream& inFile);
-
- friend class Book;
-};
-
diff --git a/Utills/Kindle/Pair.hpp b/Utills/Kindle/Pair.hpp deleted file mode 100644 index 52859fe..0000000 --- a/Utills/Kindle/Pair.hpp +++ /dev/null @@ -1,29 +0,0 @@ -#pragma once
-
-template<class T, class U>
-class Pair {
- T first;
- U second;
-public:
- Pair() {
- first = T();
- second = U();
- }
- Pair(const T& fst, const U& snd) : first(fst), second(snd) {}
-
- const T& getFirst() const {
- return first;
- }
-
- const U& getSecond() const {
- return second;
- }
-
- void setFirst(const T& arg) {
- first = arg;
- }
-
- void setSecond(const U& arg) {
- second = arg;
- }
-};
\ No newline at end of file diff --git a/Utills/Kindle/Source.cpp b/Utills/Kindle/Source.cpp deleted file mode 100644 index 674cca7..0000000 --- a/Utills/Kindle/Source.cpp +++ /dev/null @@ -1,6 +0,0 @@ -#include"Kindle.h"
-
-int main() {
- Kindle env;
- env.display();
-}
\ No newline at end of file diff --git a/Utills/Kindle/User.cpp b/Utills/Kindle/User.cpp deleted file mode 100644 index df1cea5..0000000 --- a/Utills/Kindle/User.cpp +++ /dev/null @@ -1,22 +0,0 @@ -#include "User.h"
-
-User::User(const string& pName, const string& pPassword) {
- name = pName;
- password = pPassword;
-}
-
-void User::writeToFile(std::ofstream& outFile) const {
- writeString(outFile, name);
- writeString(outFile, password);
-
- writeVector(outFile, indexesOfBooksRead);
- writeVector(outFile, indexesOfBooksWritten);
-}
-
-void User::readFromFile(std::ifstream& inFile) {
- name = readString(inFile);
- password = readString(inFile);
-
- indexesOfBooksRead = readVector(inFile);
- indexesOfBooksWritten = readVector(inFile);
-}
diff --git a/Utills/Kindle/User.h b/Utills/Kindle/User.h deleted file mode 100644 index f7c2dba..0000000 --- a/Utills/Kindle/User.h +++ /dev/null @@ -1,22 +0,0 @@ -#pragma once
-#include"string.h"
-#include"vector.hpp"
-#include"Book.h"
-#include"serialize.h"
-
-class User {
-private:
- string name;
- string password;
- Vector<size_t> indexesOfBooksRead;
- Vector<size_t> indexesOfBooksWritten;
-
- friend class Kindle;
-public:
- User() {}
- User(const string& pName, const string& pPassword);
-
- void writeToFile(std::ofstream& outFile) const;
- void readFromFile(std::ifstream& inFile);
-};
-
diff --git a/Utills/Kindle/readme.md b/Utills/Kindle/readme.md deleted file mode 100644 index d31119a..0000000 --- a/Utills/Kindle/readme.md +++ /dev/null @@ -1,66 +0,0 @@ -# Kindle
-
-## Помощни средства които използвахме
-За решението на тази задача използваме клас string, клас vector и клас pair. String е взет директно от семинарите на първа група, с добавена функция getLine(), която използваме подобно на std::getline();
-Вектора е взет от семинарите на втора група.
-Класът Pair е единствено с цел улеснение. Той представлява наредена двойка от два темплейтни типа.
-Всяко едно нещо което сме направили с тези помощни средства може да се направи и без тях - просто кодът става по - дълъг.
-
-## Използване на командите
-### Команди, които поддържаме преди да се логне потребител:
-* login - влизаме в системата
-* signup - регистрираме се в системата
-* view - преглеждаме какви книги имаме
-* save - запазваме текущия Kindle във файл
-* load - зареждаме Kindle от файл
-* exit - излизаме от системата
-### Команди, които има потребител:
-* read - прочита книга
-* write - пише книга
-* rate - оценява книга
-* comment - коментира под книга
-* rates - проверява рейтинга на книгата
-* comments - проверява коментарите под книгата
-* view - преглежда какви книги има
-* exit - излиза от профила си
-### Команди които имаме докато четем книга:
-* n - следваща страница
-* p - предишна страница
-* @ + [number] - отива на страница, която е подадена
-* h - показва/скрива help меню
-* q - излиза от режим на четене
-
-Въвеждаме команда и натискаме Enter. След това програмата ни пита ако има нужда от допълнителна информация. Пример
-```
-> login
-> Enter user name: [Name]
-> Enter user password: [Password]
-> Success!
->
-```
-
-## Накратко за запазването във файлове
-Имаме да запазваме сложна структура във файл. Това което можем да направим е да я разбием на по - прости. В Kindle имаме два вектора, които представляват книгите и потребителите. Ако измислим метод да запазим книга и потребител другото е лесно. Можете да видите, че в класовете представляващи книга и потребител имаме отделни функции, които се грижат за работата със запазването.
-Логиката за тях е аналогична - разбиваме структурата на по - малки структурки, които стават все по - лесни и по - лесни за запазване.
-
-## Допълнителни бележки
-В решението сме използвали friend класове. Това не винаги е лоша идея, но внимавайте с тях - възможно е да доведат до логически грешки, тоест на един клас да се дадат твърде много права над друг.
-
-При запазването на класа ще видите следния код
-```cpp
-outFile.write("#Ty", 4);
-```
-При четенето на класа ще видите следния код
-```cpp
-char typeChecker[4];
-inFile.read(typeChecker, 4);
-if (strcmp(typeChecker, "#Ty") != 0) {
- std::cout << "Invalid file type" << std::endl;
- return;
-}
-```
-Реално, няма как да гарантираме, че подадения файл ни е коректен. Потребителя винаги може да подаде некоректен файл, което може да счупи нашата система. За това правим следното: в началото на файла, който запазваме, записваме някаква последователност от n символа. Когато четем, прочитаме първите n (в случая 4) байта от файла и казваме - ако това е "тайният" низ, то значи този файл е писан от системата, тоест се очаква да е коректен. В противен случай приключваме изпълнението и не четем излишни данни, които могат да счупят системата ни.
-
-Също така, функционалността за промяна на книга оставяме на Вас. Чувствайте се свободни да експериментирате и pull-request вате.
-
-<b>При каквито и да е въпроси екипът по ООП е на линия.</b>
\ No newline at end of file diff --git a/Utills/Kindle/serialize.cpp b/Utills/Kindle/serialize.cpp deleted file mode 100644 index af1e001..0000000 --- a/Utills/Kindle/serialize.cpp +++ /dev/null @@ -1,71 +0,0 @@ -#include"serialize.h"
-
-void writeString(std::ofstream& outFile, const string& str) {
- int len = str.getSize();
- outFile.write((const char*)&len, sizeof(int));
-
- outFile.write(str.c_str(), sizeof(char) * len);
-}
-
-string readString(std::ifstream& inFile) {
- int len = 0;
- inFile.read((char*)&len, sizeof(len));
-
- char* buff = new char[len + 1];
- inFile.read(buff, sizeof(char) * len);
-
- buff[len] = '\0';
-
- string toReturn(buff);
-
- delete[] buff;
-
- return toReturn;
-}
-
-void writeVector(std::ofstream& outFile, const Vector<size_t>& v) {
- int len = v.getSize();
- outFile.write((const char*)&len, sizeof(int));
-
- for (size_t i = 0; i < v.getSize(); i++)
- outFile.write((const char*)&v[i], sizeof(size_t));
-}
-
-Vector<size_t> readVector(std::ifstream& inFile) {
- int len = 0;
- inFile.read((char*)&len, sizeof(int));
- Vector<size_t> toReturn;
- size_t read = 0;
-
- for (size_t i = 0; i < len; i++) {
- inFile.read((char*)&read, sizeof(size_t));
- toReturn.pushBack(read);
- }
-
- return toReturn;
-}
-
-void writeCommentsToFile(std::ofstream& outFile, const Pair<string, string>& p) {
- writeString(outFile, p.getFirst());
- writeString(outFile, p.getSecond());
-}
-
-Pair<string, string> readCommentsFromFile(std::ifstream& inFile) {
- string fst = readString(inFile);
- string snd = readString(inFile);
-
- return { fst, snd };
-}
-
-void writeRatesToFile(std::ofstream& outFile, const Pair<string, unsigned>& comments) {
- writeString(outFile, comments.getFirst());
- outFile.write((const char*)&comments.getSecond(), sizeof(comments.getSecond()));
-}
-
-Pair<string, unsigned> readRatesFromFile(std::ifstream& inFile) {
- string fst = readString(inFile);
- unsigned rate = 0;
- inFile.read((char*)&rate, sizeof(rate));
-
- return { fst, rate };
-}
\ No newline at end of file diff --git a/Utills/Kindle/serialize.h b/Utills/Kindle/serialize.h deleted file mode 100644 index 02ebc3a..0000000 --- a/Utills/Kindle/serialize.h +++ /dev/null @@ -1,20 +0,0 @@ -#pragma once
-#include"string.h"
-#include"vector.hpp"
-#include"Pair.hpp"
-#include<fstream>
-
-void writeString(std::ofstream& outFile, const string& str);
-
-string readString(std::ifstream& inFile);
-
-void writeVector(std::ofstream& outFile, const Vector<size_t>& v);
-
-Vector<size_t> readVector(std::ifstream& inFile);
-void writeCommentsToFile(std::ofstream& outFile, const Pair<string, string>& p);
-
-Pair<string, string> readCommentsFromFile(std::ifstream& inFile);
-
-void writeRatesToFile(std::ofstream& outFile, const Pair<string, unsigned>& comments);
-
-Pair<string, unsigned> readRatesFromFile(std::ifstream& inFile);
\ No newline at end of file diff --git a/Utills/Kindle/string.cpp b/Utills/Kindle/string.cpp deleted file mode 100644 index cb79dfb..0000000 --- a/Utills/Kindle/string.cpp +++ /dev/null @@ -1,158 +0,0 @@ -#include "string.h"
-#include <cstring>
-#include <iostream>
-
-#pragma warning(disable : 4996)
-
-void string::copyFrom(const string& other)
-{
- str = new char[strlen(other.str) + 1];
- strcpy(str, other.str);
- size = other.size;
-}
-void string::free()
-{
- delete[] str;
-}
-
-string::string()
-{
- str = new char[1];
- str[0] = '\0';
- size = 0;
-}
-
-string::string(const char* data)
-{
- if (data == nullptr)
- {
- str = new char[1];
- str[0] = '\0';
- size = 0;
- }
- else
- {
- size = strlen(data);
- str = new char[size + 1];
- strcpy(str, data);
- }
-}
-
-string::string(const string& other)
-{
- copyFrom(other);
-}
-string& string::operator=(const string& other)
-{
- if (this != &other)
- {
- free();
- copyFrom(other);
- }
- return *this;
-}
-string::~string()
-{
- free();
-}
-
-
-size_t string::getSize() const
-{
- return size;
-}
-void string::concat(const string& other)
-{
- char* temp = new char[getSize() + other.getSize() + 1];
- strcpy(temp, str);
- strcat(temp, other.str);
-
- delete[] str;
- str = temp;
- size = size + other.getSize();
-}
-
-const char* string::c_str() const
-{
- return str;
-}
-
-string& string::operator+=(const string& other)
-{
- concat(other);
- return *this;
-}
-
-void string::getLine(std::istream& outFile)
-{
- delete[] str;
- char buff[1024];
-
- outFile.getline(buff, 1024, '\n');
- size_t len = strlen(buff);
- str = new char[len + 1];
- for (size_t i = 0; i < len; i++)
- str[i] = buff[i];
- str[len] = '\0';
- size = len;
-}
-
-string operator+(const string& lhs, const string& rhs)
-{
- string copyOfLeft(lhs);
- copyOfLeft += rhs;
- return copyOfLeft;
-}
-
-std::ostream& operator<<(std::ostream& stream, const string& str)
-{
- stream << str.str;
- return stream;
-}
-
-std::istream& operator>>(std::istream& stream, string& str)
-{
- delete[] str.str;
- char buff[1024];
- stream >> buff;
-
- str.size = strlen(buff);
- str.str = new char[str.size + 1];
- strcpy(str.str, buff);
-
- return stream;
-}
-
-bool operator==(const string& lhs, const string& rhs)
-{
- return strcmp(lhs.c_str(), rhs.c_str()) == 0;
-}
-bool operator<=(const string& lhs, const string& rhs)
-{
- return strcmp(lhs.c_str(), rhs.c_str()) <= 0;
-
-}
-bool operator<(const string& lhs, const string& rhs)
-{
- return strcmp(lhs.c_str(), rhs.c_str()) < 0;
-
-}
-
-string::string(string&& otherString)
-{
- str = otherString.str;
- size = otherString.size;
- otherString.str = nullptr;
-}
-
-string& string::operator=(string&& otherString)
-{
- if (this != &otherString)
- {
- free();
- str = otherString.str;
- otherString.str = nullptr;
- size = otherString.size;
- }
- return *this;
-}
\ No newline at end of file diff --git a/Utills/Kindle/string.h b/Utills/Kindle/string.h deleted file mode 100644 index d5a06be..0000000 --- a/Utills/Kindle/string.h +++ /dev/null @@ -1,42 +0,0 @@ -#pragma once
-
-#include <fstream>
-#include <iostream>
-class string
-{
- char* str;
- size_t size;
-
- void copyFrom(const string& other);
- void free();
-
-public:
- string();
- string(const char*);
-
- string(const string&);
-
- string(string&&); //move constructor that accepts rvalue;
-
- string& operator=(const string& other);
- string& operator=(string&& other); //move op= that accepts rvalue;
-
- ~string();
-
- size_t getSize() const;
- void concat(const string& other);
-
- const char* c_str() const;
-
- string& operator+=(const string& other);
-
- friend std::ostream& operator<<(std::ostream& stream, const string& str);
- friend std::istream& operator>>(std::istream& stream, string& str);
- void getLine(std::istream& out);
-};
-
-string operator+(const string& lhs, const string& rhs);
-
-bool operator==(const string& lhs, const string& rhs);
-bool operator<=(const string& lhs, const string& rhs);
-bool operator<(const string& lhs, const string& rhs);
\ No newline at end of file diff --git a/Utills/Kindle/vector.hpp b/Utills/Kindle/vector.hpp deleted file mode 100644 index 1afb2a5..0000000 --- a/Utills/Kindle/vector.hpp +++ /dev/null @@ -1,239 +0,0 @@ -#pragma once
-#include<iostream>
-const size_t DEFAULT_CAPACITY = 4;
-
-template <typename T>
-class Vector {
-private:
- T* data;
- size_t size;
- size_t capacity;
-public:
- Vector();
- Vector(const Vector<T>&);
- Vector(Vector<T>&&);
- Vector<T>& operator=(const Vector<T>&);
- Vector<T>& operator=(Vector<T>&&);
- ~Vector();
-
- size_t getSize() const;
- size_t getCapacity() const;
-
- void pushBack(const T&);
- void pushBack(T&& n);
- void pushAt(const T&, const size_t);
- void pushAt(T&&, const size_t);
- T& popBack();
- T& popAt(const size_t);
- T& operator[](const size_t);
- const T& operator[](const size_t) const;
- bool empty() const;
- void clear();
- void swap(const Vector<T>&);
-private:
- void copy(const Vector&);
- void free();
- void move(Vector&&);
-
- size_t calculateCapacity(const size_t) const;
- void resize(const size_t);
-};
-
-template <typename T>
-Vector<T>::Vector() {
- data = nullptr;
- capacity = size = 0;
-}
-
-template <typename T>
-Vector<T>::Vector(const Vector<T>& other) {
- copy(other);
-}
-
-template <typename T>
-Vector<T>::Vector(Vector<T>&& other) {
- move(std::move(other));
-}
-
-template <typename T>
-Vector<T>& Vector<T>::operator=(const Vector<T>& other) {
- if (this != &other)
- {
- free();
- copy(other);
- }
-
- return *this;
-}
-
-template <typename T>
-Vector<T>& Vector<T>::operator=(Vector<T>&& other) {
- if (this != &other)
- {
- free();
- move(std::move(other));
- }
-
- return *this;
-}
-
-template <typename T>
-Vector<T>::~Vector() {
- free();
-}
-
-template <typename T>
-size_t Vector<T>::getSize() const {
- return size;
-}
-
-template <typename T>
-size_t Vector<T>::getCapacity() const {
- return capacity;
-}
-
-template <typename T>
-void Vector<T>::pushBack(const T& element) {
- if (size + 1 > capacity)
- resize(size + 1);
-
- data[size++] = element;
-}
-
-
-template <typename T>
-void Vector<T>::pushBack(T&& element) {
- if (size + 1 > capacity)
- resize(size + 1);
-
- data[size++] = element;
-}
-
-template <typename T>
-void Vector<T>::pushAt(const T& element, const size_t index) {
- if (size + 1 > capacity)
- resize(size + 1);
-
- for (size_t i = size; i > index; i--)
- data[i] = data[i - 1];
-
- data[index] = element;
- size++;
-}
-
-template <typename T>
-void Vector<T>::pushAt(T&& element, const size_t index) {
- if (size + 1 > capacity)
- resize(size + 1);
-
- for (size_t i = size; i > index; i--)
- data[i] = data[i - 1];
-
- data[index] = element;
- size++;
-}
-
-template <typename T>
-T& Vector<T>::popBack() {
- if (empty())
- throw "Vector is empty";
-
- return data[--size];
-}
-
-template <typename T>
-T& Vector<T>::popAt(size_t index) {
- if (index < 0 || index >= size)
- throw "Invalid index";
-
- T temp = data[index];
- for (size_t i = index; i < size - 1; i++)
- data[i] = data[i + 1];
-
- size--;
- return temp;
-}
-
-template <typename T>
-T& Vector<T>::operator[](const size_t index) {
- if (index < 0 || index >= size)
- throw "Invalid index";
-
- return data[index];
-}
-
-template <typename T>
-const T& Vector<T>::operator[](const size_t index) const {
- if (index < 0 || index >= size)
- throw "Invalid index";
-
- return data[index];
-}
-
-template <typename T>
-bool Vector<T>::empty() const {
- return size == 0;
-}
-
-template <typename T>
-void Vector<T>::clear() {
- delete[] data;
- capacity = DEFAULT_CAPACITY;
- data = new T[capacity];
- size = 0;
-}
-
-template <typename T>
-void Vector<T>::swap(const Vector<T>& other) {
- Vector<T> tempVector(std::move(*this));
- *this = std::move(other);
- other = std::move(tempVector);
-}
-
-template <typename T>
-void Vector<T>::copy(const Vector<T>& other) {
- size = other.size;
- capacity = other.capacity;
- data = new T[capacity];
-
- for (size_t i = 0; i < size; i++)
- data[i] = other[i];
-}
-
-template <typename T>
-void Vector<T>::free() {
- delete[] data;
- data = nullptr;
- capacity = size = 0;
-}
-
-template <typename T>
-void Vector<T>::move(Vector&& other)
-{
- data = other.data;
- size = other.size;
- capacity = other.capacity;
-
- other.data = nullptr;
- other.capacity = other.size = 0;
-}
-template <typename T>
-size_t Vector<T>::calculateCapacity(const size_t number) const {
- size_t result = DEFAULT_CAPACITY;
- while (number > result)
- result *= 2;
-
- return result;
-}
-
-template <typename T>
-void Vector<T>::resize(const size_t expectedCapacityToFit) {
- capacity = calculateCapacity(expectedCapacityToFit);
- T* temp = new T[capacity];
-
- for (size_t i = 0; i < size; i++)
- temp[i] = data[i];
-
- delete[] data;
- data = temp;
-}
\ No newline at end of file diff --git a/Utills/homework_1_SI/Домашна_работа_1.pdf b/Utills/homework_1_SI/Домашна_работа_1.pdf Binary files differdeleted file mode 100644 index a7a27ba..0000000 --- a/Utills/homework_1_SI/Домашна_работа_1.pdf +++ /dev/null diff --git a/Utills/k_1_SI/task1.cpp b/Utills/k_1_SI/task1.cpp deleted file mode 100644 index 77ad5f5..0000000 --- a/Utills/k_1_SI/task1.cpp +++ /dev/null @@ -1,138 +0,0 @@ -#include <iostream> -#include <fstream> -#include <cmath> - -using namespace std; - -struct Point -{ - int x; - int y; - Point() : Point(0,0){} - - Point(int x, int y) - { - this->x = x; - this->y = y; - } - - double getDistance(const Point& other) const - { - int dx = x - other.x; - int dy = y - other.y; - return sqrt(dx * dx + dy * dy); - } -}; - -void print(const Point& p) -{ - std::cout << "[ x: " << p.x << ", y: " << p.y <<" ]"; -} - -struct Rectangle -{ -private: - Point points[4]; - -public: - Rectangle() = default; //the same as Rectangle() {} - - void setPoint(size_t index, int x, int y) - { - if(index > 3) - return; - - points[index].x = x; - points[index].y = y; - - } - const Point& getPoint(size_t index) const - { - if(index > 3) - return {}; //some Error. This is a refference to a temporary memory, so a better solution would be to throw an exception. - return points[index]; - } - double getPer() const - { - return 2 * points[0].getDistance(points[1]) + 2 * points[1].getDistance(points[2]); - } -}; - -void print(const Rectangle& rect) -{ - for(int i = 0; i < 4; i++) - { - print(rect.getPoint(i)); - } -} - -void swap(Rectangle& tr1, Rectangle& tr2) -{ - Rectangle temp = tr1; - tr1 = tr2; - tr2 = temp; -} - -void selectionSort(Rectangle* triangles, double* perimeters, unsigned size) -{ - for (unsigned i = 0; i < size - 1; i++) - { - //findMin - int minElementIndex = i; - for (unsigned j = i + 1; j < size; j++) - { - if (perimeters[j] < perimeters[minElementIndex]) - minElementIndex = j; - } - - if (minElementIndex != i) - { - swap(perimeters[i], perimeters[minElementIndex]); - swap(triangles[i], triangles[minElementIndex]); - } - } -} - -int main() -{ - ifstream file("rects.txt"); - - if(!file.is_open()) - { - std::cout << "Error while opening the file!"; - return -1; - } - - int n; - file >> n; - - Rectangle* rects = new Rectangle[n]; - double* perimeters = new double[n]; //this should be size_t, but we are using a double returning function for getDist. - - for(size_t i = 0; i < n; i++) - { - int x1, y1, x3, y3; - file >> x1 >> y1 >> x3 >> y3; - - rects[i].setPoint(0, x1, y1); - rects[i].setPoint(1, x1, y3); - rects[i].setPoint(2, x3, y3); - rects[i].setPoint(3, x3, y1); - - perimeters[i] = rects[i].getPer(); - - } - - selectionSort(rects, perimeters, n); //selection sort, because we want min number of copies (or swaps) - - for(size_t i = 0; i < n; i++) - { - print(rects[i]); - std::cout <<", Per: " << perimeters[i] << std::endl; - } - - - delete[] rects, perimeters; - return 0; -} - diff --git a/Utills/k_1_SI/task2_read.cpp b/Utills/k_1_SI/task2_read.cpp deleted file mode 100644 index e6a8312..0000000 --- a/Utills/k_1_SI/task2_read.cpp +++ /dev/null @@ -1,55 +0,0 @@ -#include <iostream> -#include <fstream> -#include <cstring> -using namespace std; - -const size_t MAX_NAME_SIZE = 22; -struct Student -{ - //gender should be BEFORE fn so the struct would be 28 bytes. - char name[MAX_NAME_SIZE + 1]; - bool isMale; - size_t fn; -}; - - -size_t getFileSize(ifstream& f) -{ - size_t currentPos = f.tellg(); - f.seekg(0, ios::end); - size_t size = f.tellg(); - - f.seekg(currentPos); - return size; -} - -void readFromFile(Student*& ptr, size_t& studentsCount, ifstream& f) -{ - size_t sizeOfFile = getFileSize(f); - studentsCount = sizeOfFile / sizeof(Student); - ptr = new Student[studentsCount]; - f.read((char*)ptr, sizeOfFile); -} - - -int main() -{ - Student* arr; - size_t count; - ifstream file("students.dat"); - - if(!file.is_open()) - { - std::cout << "Error while opening the file!" << std::endl; - return -1; - } - - readFromFile(arr, count, file); - - for (int i = 0; i < count; i++) - std::cout << "Name: " << arr[i].name << ", fn: " << arr[i].fn << ", is male: " << arr[i].isMale << std::endl; - - delete[] arr; - - return 0; -} diff --git a/Utills/k_1_SI/task2_write.cpp b/Utills/k_1_SI/task2_write.cpp deleted file mode 100644 index f320557..0000000 --- a/Utills/k_1_SI/task2_write.cpp +++ /dev/null @@ -1,84 +0,0 @@ -#include <iostream> -#include <fstream> -#include <cstring> -using namespace std; - -const size_t MAX_NAME_SIZE = 22; -struct Student -{ - //gender should be BEFORE fn so the struct would be 28 bytes. - char name[MAX_NAME_SIZE + 1]; - bool isMale; - size_t fn; -}; - -bool isLower(char ch) -{ - return ch >= 'a' && ch <= 'z'; -} - -bool areAllLowerCase(const char* str) -{ - while(*str) - { - if(!isLower(*str)) - return false; - str++; - } - return true; -} - -bool isUpper(char ch) -{ - return ch >= 'A' && ch <= 'Z'; -} - -bool isNameValid(const char* name) -{ - size_t len = strlen(name); - if(len == 0 || len > MAX_NAME_SIZE) - return false; - return isUpper(*name) && areAllLowerCase(name + 1); -} - -void initStudent(Student& st, const char* name, size_t fn, bool isMale) -{ - if(!isNameValid(name)) - strcpy(st.name, "Unknown"); - else - strcpy(st.name, name); - - st.isMale = isMale; - st.fn = fn; -} - -void saveToFile(const Student* students, size_t count, ofstream& file) -{ - file.write((const char*)students, count * sizeof(Student)); -} - - -int main() -{ - const size_t studentsCount = 4; - Student* arr = new Student[studentsCount]; - initStudent(arr[0], "Ivan", 1, true); - initStudent(arr[1], "Petur", 2, true); - initStudent(arr[2], "Alex", 3, true); - initStudent(arr[3], "Katerina", 4, false); - - ofstream file("students.dat", ios::binary); - - if(!file.is_open()) - { - std::cout << "Error while opening the file!" << std::endl; - delete[] arr; //! - return -1; - } - - saveToFile(arr, studentsCount, file); - - delete[] arr; - - return 0; -} diff --git a/Utills/Теми за устен изпит - ООП, СИ, 2022 b/Utills/Теми за устен изпит - ООП, СИ, 2022 deleted file mode 100644 index b818c71..0000000 --- a/Utills/Теми за устен изпит - ООП, СИ, 2022 +++ /dev/null @@ -1,29 +0,0 @@ -Теми за устен изпит - ООП, СИ, 2022 - -Тема 1: Структури и обединения. Представяния в паметта. Размер на обекти/истанции. Подравняване. Подаване на обекти/истанции във функции. Създаване на обекти в динамичната памет. Пример с задачата за N тригъгълника. - -Тема 2: Текстови файлове. Йерархия на потоците. Потоци за вход/изход от файл. Режими на работа. Флагове на състоянията на потока. Позициониране във файл. Пример за функция, която връща големината на файл. Пример за функция, която връща брой редове в текстов файл. - -Тема 3: Двоични файлове. Big endian. Запазване на обекти в двоичен файл. Пример за запазване/четене на масив от обекти(от един тип) във файл. - -Тема 4: Член-функции. Конструктори и деструктор. Извикване на конструктори и деструктори. Конструктори и деструктор при композиция на обекти. Mодификатори за достъп. Капсулация. Пример за клас Person с име (низ с дължина най-много 20 символа) и години [5...90]. - -Тема 5: Разделна компилация. Копиращ конструктор и оператор=. - -Тема 6: Динамична памет в класовете. Голямата четворка. Пример за клас студент с име (с произволна дължина) и масив от оценки(с произволна дъжина) - -Тема 7: Предефиниране на оператори. Приятелски класове и функции. Пример за реализация на комплексно число и Nvector. - -Тема 8: Масиви от указатели към обекти. Изключения. Обработка на изключения. Проблеми при работа с потоци. Move семантики - ползи, lvalue, rvalue, move конструктор/оп=, std::move. - -Тема 9: Конвертиращи конструктори. Композиция и агрегация. Шаблони. Пример за шаблонна опашка. Необходими функции в шаблонен клас/шаблонна функция. - -Тема 10: Наследяване. Видове наследяване. Параметри на функции (указатели и референции). Конструктури и деструктори при наследяване. Копиране при наследяване. Пример с човек, студент и преподавател. - -Тема 11: Статично и динамично свързване. Виртуални функции. Полиморфизъм. Абстрактни класове. Пример за фигури. - -Тема 12: Колекции от обекти в полиморфна йерархия. Копиране и триене. Factory pattern. Пример с ферма. - -Тема 13: Множествено наследяване. Проблеми при множествено наследяване. Диамантен проблем. Пример с шах. - -Тема 14: Дървовидна структура от обекти от полиморфна йерархия. Пример с логически изрази. diff --git a/Utills/допълнително упражнение/Source.cpp b/Utills/допълнително упражнение/Source.cpp deleted file mode 100644 index 17e6f4e..0000000 --- a/Utills/допълнително упражнение/Source.cpp +++ /dev/null @@ -1,12 +0,0 @@ -#include<iostream> -#include"chatSystem.h" - -int main() { - chatSystem data; - - data.addUser({ "Ivan", "1234", "iv@abv.bg" }); - data.addUser({ "Qvor", "4321", "qv@abv.bg" }); - - data.sendMessage("last example", "Ivan", "Qvor"); - data.viewMessages("Qvor", "Ivan"); -}
\ No newline at end of file diff --git a/Utills/допълнително упражнение/Task1/LogFile.cpp b/Utills/допълнително упражнение/Task1/LogFile.cpp deleted file mode 100644 index 7be397b..0000000 --- a/Utills/допълнително упражнение/Task1/LogFile.cpp +++ /dev/null @@ -1,92 +0,0 @@ -#include "LogFile.h" - -void LogFile::readTime(std::ifstream& inFile, Timestamp& obj) const { - char isLogin; - - inFile >> isLogin; - - obj.isLogin = (isLogin == '+'); - - inFile >> obj.hour >> obj.minutes >> obj.seconds; -} - - -LogFile::LogFile() { - size = 0; -} - -LogFile::LogFile(const char* filePath) { - std::ifstream inFile(filePath); - - if (!inFile.is_open()) { - size = 0; - return; - } - - inFile >> size; - - for (int i = 0; i < size; i++) - readTime(inFile, data[i]); -} - - -int LogFile::getLoginsCountAfterHour(short hours, short minutes, short seconds) const { - int ctr = 0; - int totalSeconds = hours * 3600 + minutes * 60 + seconds; - for (int i = 0; i < size; i++) { - if (data[i].toSeconds() > totalSeconds) { - ctr = i + 1; - break; - } - } - - return size - ctr; -} - -int LogFile::getLoginsCountBetweenHours(short h1, short m1, short s1, short h2, short m2, short s2) const { - return getLoginsCountAfterHour(h1, m1, s1) - getLoginsCountAfterHour(h2, m2, s2); -} - -int LogFile::getLongestActivePeriod() const { - int max = 0; - bool isFirstLogOut = !data[0].isLogin; - bool isLastLogIn = data[size - 1].isLogin; - - if (isFirstLogOut) - max = data[0].toSeconds(); - - if (isLastLogIn) { - int lastTimeInterval = 23 * 3600 + 59 * 60 + 59 - data[size - 1].toSeconds(); - - if (max < lastTimeInterval) - max = lastTimeInterval; - } - - for (int i = isFirstLogOut; i < size - isLastLogIn; i += 2) { - int diff = data[i + 1].toSeconds() - data[i].toSeconds(); - if (diff > max) - max = diff; - } - - return max; -} - -bool LogFile::loggedInHour(int hour) const { - int left = 0; - int right = size-1; - - while (left <= right) { - int mid = left + (right - left) / 2; - if (hour == data[mid].hour) { - return true; - } - - if (hour < data[mid].hour) { - right = mid - 1; - } - else { - left = mid + 1; - } - } - return false; -}
\ No newline at end of file diff --git a/Utills/допълнително упражнение/Task1/LogFile.h b/Utills/допълнително упражнение/Task1/LogFile.h deleted file mode 100644 index 258c7d5..0000000 --- a/Utills/допълнително упражнение/Task1/LogFile.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once -#include<fstream> -#include "Timestamp.h" -const int MAX_FILE_SIZE = 100; -class LogFile { -private: - size_t size; - Timestamp data[MAX_FILE_SIZE]; - - void readTime(std::ifstream& inFile, Timestamp& obj) const; - -public: - LogFile(); - - LogFile(const char* filePath); - - int getLoginsCountAfterHour(short hours, short minutes, short seconds) const; - - int getLoginsCountBetweenHours(short h1, short m1, short s1, short h2, short m2, short s2) const; - - int getLongestActivePeriod() const; - - bool loggedInHour(int hour) const; -};
\ No newline at end of file diff --git a/Utills/допълнително упражнение/Task1/Timestamp.cpp b/Utills/допълнително упражнение/Task1/Timestamp.cpp deleted file mode 100644 index 28ff933..0000000 --- a/Utills/допълнително упражнение/Task1/Timestamp.cpp +++ /dev/null @@ -1,5 +0,0 @@ -#include "Timestamp.h" - -int Timestamp::toSeconds() const{ - return hour * 3600 + minutes * 60 + seconds; -}
\ No newline at end of file diff --git a/Utills/допълнително упражнение/Task1/Timestamp.h b/Utills/допълнително упражнение/Task1/Timestamp.h deleted file mode 100644 index e437187..0000000 --- a/Utills/допълнително упражнение/Task1/Timestamp.h +++ /dev/null @@ -1,9 +0,0 @@ -#pragma once -struct Timestamp { - bool isLogin; - unsigned short hour; - unsigned short minutes; - unsigned short seconds; - - int toSeconds() const; -};
\ No newline at end of file diff --git a/Utills/допълнително упражнение/User.cpp b/Utills/допълнително упражнение/User.cpp deleted file mode 100644 index 998b91f..0000000 --- a/Utills/допълнително упражнение/User.cpp +++ /dev/null @@ -1,97 +0,0 @@ -#include "User.h" -#include<cstring> -#include<fstream> -#include<iostream> - -#pragma warning(disable : 4996) - -void generatePath(char* path, const char* bigger, const char* smaller) { - strcpy(path, bigger); - strcat(path, "-"); - strcat(path, smaller); - strcat(path, ".bat"); -} - -void User::createFileName(char* fileName, const User& other) const { - if (strcmp(name, other.name) == 1) { - generatePath(fileName, name, other.name); - } - else { - generatePath(fileName, other.name, name); - } -} - -User::User() : name(""), password(""), email(""){} - -User::User(const char* n, const char* pass, const char* mail) { - if (strlen(n) > NAME_LEN || strlen(pass) > PASS_LEN || strlen(mail) > MAIL_LEN) { - strcpy(name, ""); - strcpy(password, ""); - strcpy(email, ""); - - return; - } - - strcpy(name, n); - strcpy(password, pass); - strcpy(email, mail); -} - -void User::sendMessage(const char* message, const User& other) const { - char filePath[50]; - createFileName(filePath, other); - - std::ofstream outFile(filePath, std::ios::binary | std::ios::app); - - if (!outFile.is_open()) - return; - - outFile.write(name, sizeof(name)); - - int length = strlen(message); - - outFile.write((const char*)&length, sizeof(length)); - - outFile.write(message, length); - - outFile.close(); -} - -void User::viewMessage(const User& other) const { - char filePath[50]; - createFileName(filePath, other); - - std::ifstream inFile(filePath, std::ios::binary); - - if (!inFile.is_open()) - return; - - char buff[NAME_LEN + 1]; - - while (!inFile.eof()) { - inFile.read(buff, sizeof(buff)); - - if (inFile.eof()) - return; - - int length = 0; - - inFile.read((char*)&length, sizeof(length)); - - char* msg = new char[length + 1]; - - inFile.read(msg, length); - - msg[length] = '\0'; - - std::cout << buff << ": " << msg << std::endl; - - delete[] msg; - } - - inFile.close(); -} - -const char* User::getName() const { - return name; -} diff --git a/Utills/допълнително упражнение/User.h b/Utills/допълнително упражнение/User.h deleted file mode 100644 index 4f94c7f..0000000 --- a/Utills/допълнително упражнение/User.h +++ /dev/null @@ -1,26 +0,0 @@ -#pragma once - -const int NAME_LEN = 20; -const int MAIL_LEN = 12; -const int PASS_LEN = 8; - -class User { -private: - // N символа за име +1 за терминираща нула! - char name[NAME_LEN + 1]; - char password[PASS_LEN + 1]; - char email[MAIL_LEN + 1]; - - void createFileName(char* fileName, const User& other) const; -public: - User(); - - User(const char* n, const char* pass, const char* email); - - void sendMessage(const char* message, const User& u) const; - - void viewMessage(const User& u) const; - - const char* getName() const; -}; - diff --git a/Utills/допълнително упражнение/chatSystem.cpp b/Utills/допълнително упражнение/chatSystem.cpp deleted file mode 100644 index c982451..0000000 --- a/Utills/допълнително упражнение/chatSystem.cpp +++ /dev/null @@ -1,80 +0,0 @@ -#include "chatSystem.h" -#include<cstring> -#include<fstream> - -void chatSystem::save() const { - std::ofstream outFile(FILE_PATH, std::ios::binary); - - outFile.write((const char*)this, sizeof(chatSystem)); -} - -void chatSystem::read() { - std::ifstream inFile(FILE_PATH, std::ios::binary); - - inFile.read((char*)this, sizeof(chatSystem)); -} - -void chatSystem::searchIndexes(int& firstIndex, int& secondIndex, const char* fstName, const char* sndName) const { - for (int i = 0; i < size; i++) { - if (strcmp(fstName, data[i].getName()) == 0) { - firstIndex = i; - } - - if (strcmp(sndName, data[i].getName()) == 0) { - secondIndex = i; - } - - if (firstIndex != -1 && secondIndex != -1) - break; - } -} - -chatSystem::chatSystem() { - size = 0; - read(); -} - -void chatSystem::addUser(const User& arg) { - if (size > 99) - return; - - for (int i = 0; i < size; i++) { - if (strcmp(arg.getName(), data[i].getName()) == 0) { - return; - } - } - - data[size++] = arg; -} - -void chatSystem::sendMessage(const char* msg, const char* fstName, const char* sndName) const { - int firstIndex = -1; - int secondIndex = -1; - - searchIndexes(firstIndex, secondIndex, fstName, sndName); - - if (firstIndex == -1 || secondIndex == -1) - return; - - data[firstIndex].sendMessage(msg, data[secondIndex]); -} - -void chatSystem::viewMessages(const char* fstName, const char* sndName) const { - int firstIndex = -1; - int secondIndex = -1; - - searchIndexes(firstIndex, secondIndex, fstName, sndName); - - if (firstIndex == -1 || secondIndex == -1) - return; - - data[firstIndex].viewMessage(data[secondIndex]); -} - -int chatSystem::getSize() const { - return size; -} - -chatSystem::~chatSystem() { - save(); -} diff --git a/Utills/допълнително упражнение/chatSystem.h b/Utills/допълнително упражнение/chatSystem.h deleted file mode 100644 index 1f21bf3..0000000 --- a/Utills/допълнително упражнение/chatSystem.h +++ /dev/null @@ -1,31 +0,0 @@ -#pragma once -#include"User.h" - -const char FILE_PATH[] = "database.bat"; - -class chatSystem { -private: - User data[100]; - size_t size; - - void save() const; - - void read(); - - void searchIndexes(int& firstIndex, int& secondIndex, const char* fstName, const char* sndName) const; - -public: - chatSystem(); - - void addUser(const User& arg); - - void sendMessage(const char* msg, const char* fstName, const char* sndName) const; - - void viewMessages(const char* sender, const char* reciever) const; - - int getSize() const; - - ~chatSystem(); - -}; - diff --git a/Utills/допълнително упражнение/задачи за допълнително упражнение СИ.pdf b/Utills/допълнително упражнение/задачи за допълнително упражнение СИ.pdf Binary files differdeleted file mode 100644 index 111878f..0000000 --- a/Utills/допълнително упражнение/задачи за допълнително упражнение СИ.pdf +++ /dev/null diff --git a/Utills/допълнително упражнение/функции от по - висок ред/demo.cpp b/Utills/допълнително упражнение/функции от по - висок ред/demo.cpp deleted file mode 100644 index 951b7d2..0000000 --- a/Utills/допълнително упражнение/функции от по - висок ред/demo.cpp +++ /dev/null @@ -1,89 +0,0 @@ -#include<iostream> -#include<vector> - -template<class T> -class Entity { -private: - int integerData; - char symbolData; - T abstractData; - -public: - Entity(int iArg, char cArg, const T& aArg) : integerData(iArg), symbolData(cArg), abstractData(aArg) {} - - int getIntegerData() const { - return integerData; - } - - char getCharData() const { - return symbolData; - } - - const T& getAbstractData() const { - return abstractData; - } - - void print() const { - std::cout << integerData << " " << symbolData << " " << abstractData << std::endl; - } -}; - -template<class T> -bool compareIntegerValues(const Entity<T>& fst, const Entity<T>& snd) { - return fst.getIntegerData() < snd.getIntegerData(); -} - -template<class T> -bool compareCharValues(const Entity<T>& fst, const Entity<T>& snd) { - return fst.getCharData() < snd.getCharData(); -} - -template<class T> -bool compareAbstractValues(const Entity<T>& fst, const Entity<T>& snd) { - return fst.getAbstractData() < snd.getAbstractData(); -} - -template<class T> -void sort(std::vector<Entity<T>>& collection, bool (*lessThan)(const Entity<T>&, const Entity<T>&)) { - for (size_t i = 0; i < collection.size(); i++) { - size_t minElementIndex = i; - - for (size_t j = i + 1; j < collection.size(); j++) { - if (lessThan(collection[j], collection[minElementIndex])) { - minElementIndex = j; - } - } - - if (minElementIndex != i) - std::swap(collection[i], collection[minElementIndex]); - } -} - -char generateRandomLetter() { - return (char)(rand() % 26 + 'a'); -} - -double generateRandomDouble() { - return (double)rand() / RAND_MAX + rand() % 256; -} - -int main() { - std::vector<Entity<double>> collection; - - for (size_t i = 0; i < 100; i++) - collection.push_back({ rand() % 10000, generateRandomLetter(), generateRandomDouble() }); - - - // Sort integer values - // sort(collection, compareIntegerValues); - - // Sort char values - // sort(collection, compareCharValues); - - // Sort abstract values - sort(collection, compareAbstractValues); - - - for (size_t i = 0; i < 100; i++) - collection[i].print(); -} |