// simple task managing program in c++ // won't work in sololearn #include #include #include #include #include #include // holds the name and state of 'tasks' std::vector tasks; // separator for name and state cout references const int conWidth = 30; // writes tasks to file for retrieval upon reopening program bool writeToFile() { try { std::ofstream taskFile("tasks.txt", std::ios::out | std::ios::trunc); // write task values to the tasks.txt file for (std::string s : tasks) { taskFile << s << "\n"; } taskFile.close(); return true; } catch (...) { return false; } } // reads from tasks file and displays older tasks bool readFromFile() { std::string line; try { std::ifstream taskFile("tasks.txt"); while (std::getline(taskFile, line)) { tasks.push_back(line); } taskFile.close(); return true; } catch (...) { return false; } } // displays tasks on the screen void echoTasks() { std::system("cls"); if (!tasks.empty()) { std::cout << "\n"; for (unsigned int i = 0; i < tasks.size(); i += 2) { std::cout << " " << tasks[i] << std::string(conWidth - tasks[i].length(), ' ') << tasks[i + 1] << std::endl; } } } // gets name of task and appends it and the status to the tasks vector void createTask() { std::string name; std::cout << " Name of Task: "; if (std::getline(std::cin, name)) tasks.push_back(name); tasks.push_back("Not Done"); // write tasks to file writeToFile(); // re-display the tasks after adding new one echoTasks(); } // remove name and status of task index specified bool deleteTask(unsigned int indexOfTask) { try { if (indexOfTask > tasks.size()) { throw 1; } tasks.erase(tasks.begin() + 2 * (indexOfTask - 1), tasks.begin() + 2 * indexOfTask); // write tasks to file writeToFile(); // re-display the tasks after deleting one echoTasks(); return true; } catch (...) { std::cout << " Task doesn't exist!"; return false; } } // marks task's status as opposite of what it is when called bool markTask(unsigned int indexOfTask) { try { if (indexOfTask > tasks.size() / 2) { throw 1; } tasks[indexOfTask * 2 - 1] = tasks[indexOfTask * 2 - 1] == "Done" ? "Not Done" : "Done"; // re-display the tasks after marking as done/ not done echoTasks(); return true; } catch (...) { std::cout << " Task doesn't exist!"; return false; } } int main() { // load previously stored tasks from file readFromFile(); // display the tasks after loading into vector echoTasks(); std::string command = ""; // take commands until program is closed or command is 'quit' while (command != "quit") { std::cout << "\n Command: "; std::getline(std::cin, command); if (command == "new") { createTask(); } else if (command == "del") { std::cout << " Task Number: "; std::string index; std::getline(std::cin, index); deleteTask(std::stoi(index)); } else if (command == "mark") { std::cout << " Task Number: "; std::string index; std::getline(std::cin, index); markTask(std::stoi(index)); } else { std::cout << " Command not found!"; } } return 0; }

[CPP] Task Tracker