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The-Young-ProgrammerThe-Young-Programmer
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‎Projects/C++ Projects/Basic/A Login and Registration System/LoginAndRegistration.cpp‎

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#include <iostream>
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#include <fstream>
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#include <string.h>
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#include <vector>
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#include <functional>
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#include <cmath>
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#include <cstdlib>
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#include <ctime>
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#include "login.cpp"
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using namespace std;
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int main()
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{
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login userLogin;
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string userChoice;
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cout << "\t\t\t_____________________________________________\n\n\n";
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cout << "\t\t\t Welcome to the CS 1021 Login! \n\n";
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cout << "\t\t\t_________ Menu __________\n\n";
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cout << "\t | Press 1 to LOGIN |" << endl;
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cout << "\t | Press 2 to REGISTER |" << endl;
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cout << "\t | Press 3 if you forgot PASSWORD |" << endl;
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cout << "\t | Press 4 to EXIT |" << endl;
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cout << "\n\t\t\t Please Enter your choice: ";
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cin >> userChoice;
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cout << endl;
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if (userChoice == "1")
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{
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userLogin.Login();
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main();
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}
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else if (userChoice == "2")
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{
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userLogin.Registration();
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main();
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}
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else if (userChoice == "3")
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{
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userLogin.ForgotPassword();
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main();
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}
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else if (userChoice == "4")
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{
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cout << "\t\t\t Goodbye! \n\n";
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}
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else
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{
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system("cls");
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cout << "\t\t\t Please select from the options above\n";
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main();
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}
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}

‎Projects/C++ Projects/Basic/A Login and Registration System/data.txt‎

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janedoe 1671037691 1373396578

‎Projects/C++ Projects/Basic/A Login and Registration System/login.cpp‎

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#include <iostream>
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#include <fstream>
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#include <string.h>
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#include <vector>
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#include <functional>
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#include <cmath>
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#include <cstdlib>
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#include <ctime>
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#include "login.h"
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using namespace std;
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void login::Login()
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{
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string count;
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string username, password, id, recordPass, recordSecurity;
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system("cls");
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cout << "\n\t\t\t Please enter the username and password: " << endl;
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cout << "\t\t\t USERNAME: ";
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cin >> username;
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cout << "\t\t\t PASSWORD: ";
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cin >> password;
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string loginHash = password;
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hash<string> mystdhash;
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int loginHashPassword = mystdhash(loginHash);
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ifstream input("data.txt");
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while (input >> id >> recordPass >> recordSecurity)
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{
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if (id == username && stoi(recordPass) == loginHashPassword)
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{
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count = "1";
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system("cls");
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}
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}
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input.close();
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if (count == "1")
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{
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cout << username << "\nLogin successful!\n";
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string choice = "1";
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while (choice != "2")
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{
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cout << "\t\t\t_____________________________________________\n\n\n";
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cout << "\t\t\t Welcome to the CS 1021 Login! \n\n";
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cout << "\t\t\t_______ Currently Logged In: " << username << " ________\n\n";
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cout << "\t\t\t_________ Menu __________\n\n";
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cout << "\t | Press 1 to PLAY GAME |" << endl;
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cout << "\t | Press 2 to LOGOUT |" << endl;
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cout << "\n\t\t\t Please Enter your choice: ";
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cin >> choice;
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cout << endl;
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if (choice == "1")
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{
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system("cls");
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DrunkGame();
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}
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else if (choice == "2")
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{
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system("cls");
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cout << "Logging out" << endl;
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}
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else
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{
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system("cls");
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cout << "Choice invalid, try again";
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}
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}
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}
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else
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{
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system("cls");
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cout << "\n Username or password is incorrect, please try again or register\n";
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}
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}
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void login::Registration()
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{
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string regUser, regPassword, regId, regPass, securityQuestion, regSecure, regCount;
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system("cls");
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cout << "\n\t\t\t Enter Username: ";
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cin >> regUser;
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cout << "\t\t\t Enter Password: ";
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cin >> regPassword;
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cout << "\t\t\t Security Question: What was your favorite childhood movie?: ";
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cin.ignore();
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getline(cin, securityQuestion);
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string hashing = regPassword;
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hash<string> mystdhash;
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int hashPassword = mystdhash(hashing);
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string secureHashing = securityQuestion;
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hash<string> mystdhash2;
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int securityHash = mystdhash2(secureHashing);
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ifstream input("data.txt");
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input.seekg(0, ios::end);
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if (input.tellg() == 0)
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{
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ofstream f1("data.txt", ios::app);
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f1 << regUser << ' ' << hashPassword << ' ' << securityHash << endl;
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system("cls");
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cout << "\n\t\t\t Registration successful!\n";
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return;
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}
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else
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{
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ifstream input("data.txt");
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while (input >> regId >> regPass >> regSecure)
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{
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if (regUser == regId)
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{
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string decision;
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cout << "\n\t\tUsername already taken.\n";
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cout << "\t\tEnter 1 to enter a new one\n";
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cout << "\t\tEnter 2 to go back to the menu\n";
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cout << "\n\t\tEnter choice: ";
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cin >> decision;
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if (decision == "1")
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{
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Registration();
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}
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else if (decision == "2")
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{
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system("cls");
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cout << "\tReturning to menu\n";
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return;
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}
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else
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{
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system("cls");
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cout << "\tInvalid Entry, returning to menu." << endl;
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return;
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}
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}
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else
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{
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regCount = "1";
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}
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}
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if (regCount == "1")
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{
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ofstream f1("data.txt", ios::app);
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f1 << regUser << ' ' << hashPassword << ' ' << securityHash << endl;
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system("cls");
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cout << "\n\t\t\t Registration successful!\n";
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return;
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}
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}
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}
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void login::DrunkGame()
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{
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srand(time(0));
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const int size = 60;
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cout << "Enter a letter to begin \n ";
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char x;
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cin >> x;
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int position = size / 2;
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while (true)
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{
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cout << "|START|";
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for (int i = 0; i < size; i++)
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{
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if (i == position)
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cout << x;
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else
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cout << " ";
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}
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cout << "|END|" << endl;
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int move = rand() % 3 - 1;
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position = position + move;
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if (position < 1)
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{
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cout << "Guess you were too drunk to make it to the end..." << endl;
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break;
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}
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if (position > size - 1)
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{
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cout << "You might be drunk, but you made it to the end!" << endl;
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break;
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}
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for (int sleep = 0; sleep < 1000000; ++sleep)
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;
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}
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system("pause");
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system("cls");
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}
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void login::ForgotPassword()
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{
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string forgotChoice, count, secondCount;
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system("cls");
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cout << "\n\t\t\tPress 1 to enter USERNAME\n";
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cout << "\t\t\tPress 2 to go back to MENU\n";
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cout << "\n\t\t\tEnter choice: ";
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cin >> forgotChoice;
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if (forgotChoice == "1")
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{
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string user, userSecurity, forgotId, forgotPass, forgotSecurity;
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int newHashPassword, forgotSecHash;
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system("cls");
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cout << "\n\t\tEnter USERNAME: ";
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cin >> user;
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cout << endl;
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ifstream input("data.txt");
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while (input >> forgotId >> forgotPass >> forgotSecurity)
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{
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if (user == forgotId)
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{
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cout << "\n\t\tUser found\n\t\tSecurity Question: What was your favorite childhood movie?: ";
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cin.ignore();
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getline(cin, userSecurity);
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cout << endl;
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string hashing = userSecurity;
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hash<string> mystdhash;
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forgotSecHash = mystdhash(hashing);
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if (stoi(forgotSecurity) == forgotSecHash)
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{
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system("cls");
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string newPass;
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cout << "\t\tSecurity Question correct\n";
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cout << "\n\t\tEnter new PASSWORD: ";
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cin >> newPass;
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string newPassHash = newPass;
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hash<string> mystdhash2;
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newHashPassword = mystdhash2(newPassHash);
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count = "1";
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break;
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}
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else
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{
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string incorrectChoice;
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system("cls");
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cout << "\t\tSecurity Question incorrect\n";
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cout << "\t\tPress 1 to Re-Enter\n\t\tPress 2 to return to MENU\n";
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cout << "\n\t\tEnter choice: ";
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cin >> incorrectChoice;
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if (incorrectChoice == "1")
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{
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ForgotPassword();
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}
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if (incorrectChoice == "2")
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{
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system("cls");
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cout << "\tReturning to MENU\n";
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return;
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}
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else
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{
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system("cls");
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cout << "\tInvalid answer... Returning to menu\n";
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return;
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}
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}
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}
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else
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{
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string newChoice;
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system("cls");
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cout << "\t\tUser not found\n";
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cout << "\t\tPress 1 to Re-Enter USERNAME\n\t\tPress 2 to return to MENU\n";
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cout << "\n\t\tEnter choice: ";
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cin >> newChoice;
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if (newChoice == "1")
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{
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ForgotPassword();
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}
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else if (newChoice == "2")
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{
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system("cls");
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cout << "\tReturning to MENU\n";
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return;
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}
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else
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{
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system("cls");
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cout << "\tChoice invalid... Returning to MENU\n";
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return;
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}
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}
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}
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input.close();
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if (count == "1")
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{
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DeleteLine(user);
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secondCount = "1";
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}
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if (secondCount == "1")
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{
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ofstream f1("data.txt", ios::app);
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f1 << user << ' ' << newHashPassword << ' ' << forgotSecHash << endl;
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system("cls");
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cout << "\t\t\t Your password has been updated!\n";
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return;
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}
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}
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else if (forgotChoice == "2")
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{
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system("cls");
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cout << "\tReturning to MENU\n";
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return;
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}
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else
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{
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system("cls");
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cout << "\tChoice invalid... Try again\n";
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ForgotPassword();
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}
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}
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void login::DeleteLine(string userDelete)
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{
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string line;
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ifstream myFile;
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myFile.open("data.txt");
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ofstream temp;
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temp.open("temp.txt");
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while (getline(myFile, line))
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{
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if (line.substr(0, userDelete.size()) != userDelete)
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{
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temp << line << endl;
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}
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}
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myFile.close();
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temp.close();
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remove("data.txt");
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rename("temp.txt", "data.txt");
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}

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