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// Copyright (c) 2023 Xi Xu
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include "Administrator.h"
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#include <iostream>
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#include <fstream>
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#include <iomanip>
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#include <cstring>
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using namespace std;
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void Login(Administrator &admin);
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void Menu(Administrator &admin);
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int main()
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{
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Administrator admin;
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Login(admin);
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return 0;
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}
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void print() { cout << " No. Name Gender Age Major Class Score" << endl; }
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void Login(Administrator &admin)
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{
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char password[MAXN] = "", input[MAXN];
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std::ifstream in("password.dat", ios::binary);
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in.read(password, MAXN);
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in.close();
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if (strcmp("", password) != 0)
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{
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cout << "Please enter your password to log in to the Student Information Management System: ";
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cin >> input;
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if (strcmp(input, password) != 0)
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{
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cout << "Wrong password!" << endl;
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exit(0);
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}
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}
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cout << "Do you want to modify or create a password? (Y/N)" << endl;
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cin >> input;
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if (strcmp(input, "N") == 0 || strcmp(input, "n") == 0)
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cout << endl;
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else if (strcmp(input, "Y") == 0 || strcmp(input, "y") == 0)
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{
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cout << "Please enter a password: ";
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cin >> input;
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std::ofstream out("password.dat", ios::binary);
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out.write(input, MAXN);
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out.close();
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cout << "Password modification or creation successful!" << endl
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<< endl;
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}
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Menu(admin);
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}
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void Menu(Administrator &admin)
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{
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char input1[MAXN], input4[MAXN];
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int input2, input5, input7;
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bool input3;
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double input6;
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cout << "Welcome to the Student Information Management System!" << endl;
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admin.loadfile();
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while (true)
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{
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cout << endl
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<< "Please enter instructions: Find(F) Add(A) Edit(E) Delet(D) Sort(S) Average(V) Display(P) Quit(Q): ";
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cin >> input1;
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// #################### Find ####################
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if (strcmp("F", input1) == 0 || strcmp("f", input1) == 0)
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{
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cout << "Find by no.(0) or name(1) or class(2): ";
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cin >> input2;
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// Find by no.
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if (input2 == 0)
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{
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cout << "Please enter no.: ";
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cin >> input2;
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int i = admin.find(input2);
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if (i == -1)
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cout << "Not found!" << endl;
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else
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{
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print();
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cout << admin.getstu(i) << endl;
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}
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continue;
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}
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// Find by name
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else if (input2 == 1)
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{
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cout << "Please enter name: ";
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cin >> input1;
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int i = admin.find(input1);
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if (i == -1)
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cout << "Not found!" << endl;
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else
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{
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print();
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cout << admin.getstu(i) << endl;
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}
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continue;
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}
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// Find by class
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else if (input2 == 2)
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{
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cout << "Please enter major: ";
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cin >> input1;
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cout << "class: ";
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cin >> input2;
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vector<int> vi = admin.findbycls(input1, input2);
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if (!vi.size())
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cout << "Not found!" << endl;
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else
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{
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print();
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for (int i : vi)
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{
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cout << admin.getstu(i) << endl;
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}
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}
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continue;
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}
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else
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cout << "Enter error!" << endl;
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}
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// #################### Add ####################
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else if (strcmp("A", input1) == 0 || strcmp("a", input1) == 0)
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{
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cout << "Please enter name: ";
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cin >> input1;
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cout << "male(1) or female(0): ";
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cin >> input3;
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cout << "age: ";
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cin >> input2;
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cout << "major: ";
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cin >> input4;
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cout << "class: ";
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cin >> input5;
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cout << "score: ";
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cin >> input6;
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cout << "no.: " << admin.add(input1, input3, input2, input4, input5, input6) << endl;
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continue;
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}
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// #################### Edit ####################
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else if (strcmp("E", input1) == 0 || strcmp("e", input1) == 0)
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{
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cout << "Please enter no.: ";
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cin >> input2;
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if (admin.find(input2) == -1)
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cout << "Not exist!" << endl;
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else
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{
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cout << "name: ";
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cin >> input1;
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cout << "male(1) or female(0): ";
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cin >> input3;
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cout << "age: ";
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cin >> input7;
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cout << "major: ";
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cin >> input4;
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cout << "class: ";
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cin >> input5;
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cout << "score: ";
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cin >> input6;
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admin.edit(input2, input1, input3, input7, input4, input5, input6);
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cout << "Edited successfully!" << endl;
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}
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continue;
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}
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// #################### Delete ####################
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else if (strcmp("D", input1) == 0 || strcmp("d", input1) == 0)
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{
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cout << "Delete by no.(1) or name(0): ";
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cin >> input3;
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if (input3)
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{
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cout << "Enter no.: ";
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cin >> input2;
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if (admin.erase(input2))
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cout << "Deleted successfully!" << endl;
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else
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cout << "Not exist!" << endl;
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continue;
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}
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else
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{
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cout << "Enter name: ";
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cin >> input1;
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if (admin.erase(input1))
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cout << "Deleted successfully!" << endl;
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else
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cout << "Not exist!" << endl;
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continue;
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}
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}
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// #################### Sort ####################
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else if (strcmp("S", input1) == 0 || strcmp("s", input1) == 0)
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{
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cout << "Ascending(1) or descending(0) order: ";
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cin >> input3;
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admin.sequence(input3);
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cout << "Sorted successfully!" << endl;
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}
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// #################### Average ####################
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else if (strcmp("V", input1) == 0 || strcmp("v", input1) == 0)
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cout << "Average score: " << admin.average() << endl;
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// #################### Display ####################
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else if (strcmp("P", input1) == 0 || strcmp("p", input1) == 0)
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admin.display();
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// #################### Quit ####################
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else if (strcmp("Q", input1) == 0 || strcmp("q", input1) == 0)
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{
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cout << "Quit successfully!" << endl;
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break;
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}
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else
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{
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cout << "Enter error!" << endl;
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continue;
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}
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}
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admin.writefile();
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}
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