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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. struct data{
  6.     int stok;
  7.     string nmbar;
  8.     int code;
  9.     int harga;
  10.     string username;
  11.     string pass;
  12.     data *next;
  13. };
  14. void menu();
  15. data *head =NULL, *tail = NULL;
  16.  
  17. void add()
  18. {
  19.     data *elemen = new data;
  20.     string nmbar;
  21.     int stok,harga;
  22.     cout << "Masukkan Nama Barang = "; cin >>nmbar;
  23.     cout << "Masukkan Banyak barang = "; cin >>stok;
  24.     cout << "Masukkan harga barang = "; cin >>harga;
  25.     elemen->nmbar = nmbar;
  26.     elemen->stok = stok;
  27.     elemen->harga = harga;
  28.     elemen->next = NULL;
  29.  
  30.     if(head == NULL)
  31.     {
  32.         head = elemen;
  33.         tail = elemen;
  34.         elemen->next = NULL;
  35.     }else
  36.     {
  37.         data *temp = head;
  38.         while(temp->next != NULL)
  39.         {
  40.            temp = temp->next;
  41.         }
  42.         temp->next = elemen;
  43.     }
  44. }
  45. void buat(string user, string pw)
  46. {
  47.     data *elemen = new data;
  48.     elemen ->username = user;
  49.     elemen ->pass = pw;
  50.    if(head == NULL)
  51.    {
  52.        head=elemen;
  53.        tail = elemen;
  54.        tail->next = NULL;
  55.    }
  56. }
  57. void login(string user, string pw)
  58. {
  59.     data *login = head;
  60.     int flag;
  61.     if(head != NULL){
  62.     while(login != NULL)
  63.     {
  64.         if((login->username == user) && (login->pass == pw))
  65.         {
  66.             cout << "Login berhasil "<<endl;
  67.             system("CLS");
  68.             menu();
  69.             flag = 0;
  70.             break;
  71.  
  72.         }else
  73.         {
  74.             flag = 1;
  75.         }
  76.         login = login->next;
  77.     }
  78.     if(flag == 1)
  79.     {
  80.         cout << "Username atau password salah "<<endl;
  81.     }
  82.  }else
  83.  {
  84.      cout << "AKUN TIDAK TERDAFTAR , SILAKAN DAFTAR TERLEBIH DAHULU "<<endl;
  85.  }
  86.  
  87. }
  88.  
  89. void edit()
  90. {
  91.     string cari;
  92.     int baru;
  93.     data *current = head;
  94.     if(head == NULL)
  95.     {
  96.         cout << "List Kosong";
  97.     }
  98.     cout << "Cari Nama barang "; cin >> cari;
  99.     while(current->next != NULL)
  100.     {
  101.         if(current->nmbar == cari)
  102.         {
  103.             cout << "Masukan banyak barang "; cin >> baru;
  104.             current->stok = baru;
  105.         }
  106.         current = current->next;
  107.  
  108.     }
  109. }
  110.  
  111. void print()
  112. {
  113.     data *print = head;
  114.  
  115.     if(head != NULL)
  116.     {
  117.         while(print != NULL)
  118.     {
  119.         cout << "Nama barang = "<<print->nmbar << endl;
  120.         cout << "Jumlah barang = "<<print->stok << endl;
  121.         cout << "Harga barang = "<< print->harga << endl;
  122.         cout << endl;
  123.         print=print->next;
  124.     }
  125.     }else
  126.     {
  127.         cout << "List kosong ";
  128.     }
  129.  
  130. }
  131. void menu()
  132. {
  133.     int pil;
  134.     menu1 :
  135.     cout << "SELAMAT ANDA BERHASIL LOGIN "<<endl;
  136.     cout << "WELCOME TO YUSAN STORE "<<endl;
  137.     cout << "1. Tambah data "<<endl;
  138.     cout << "2. Edit data "<<endl;
  139.     cout << "3. Print data "<< endl;
  140.     cout << "Masukkan pilihan anda "; cin >> pil;
  141.  
  142.     switch(pil)
  143.     {
  144.     case 1 :
  145.         add();
  146.         system("CLS");
  147.         goto menu1;
  148.  
  149.     case 2 :
  150.         edit();
  151.         system("CLS");
  152.         goto menu1;
  153.  
  154.     case 3 :
  155.         print();
  156.         goto menu1;
  157.  
  158.     }
  159.  
  160. }
  161.  
  162. int main()
  163. {
  164.     string username, pass, pil;
  165.     menu :
  166.     cout << "WELCOM TO LOGIN SEDERHANA "<<endl;
  167.     cout << "1. Buat Akun "<<endl;
  168.     cout << "2. Login "<<endl;
  169.     cout << "Masukkan pilihan = "; cin >> pil;
  170.  
  171.     if(pil == "1")
  172.     {
  173.         cout << "Masukkan username utk buat akun "; cin >> username;
  174.         cout << "Masukkan password utk buat akun "; cin >> pass;
  175.         buat(username,pass);
  176.         system("CLS");
  177.         goto menu;
  178.     }
  179.     else if(pil == "2")
  180.     {
  181.         cout << "Masukkan username utk login "; cin>>username;
  182.         cout << "Masukkan password utk login "; cin >> pass;
  183.         login(username,pass);
  184.         goto menu;
  185.  
  186.     }
  187.  
  188. }
  189.  
Success #stdin #stdout 0.01s 5432KB
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stdin
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Standard input is empty
stdout
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WELCOM TO LOGIN SEDERHANA 
1. Buat Akun 
2. Login 
Masukkan pilihan =
https://ideone.com/T46AIn
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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