Menú de restaurant...

main.cpp

#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[]) {
    
    int menu;//    Categoria del menu
    int opcion;//  Opcion (Compra, Pago, Salir)
    int item;// Item a comprar
    float total;// Total de la compra
    
    while (opcion != 0) {
          printf("Seleccione una opcion:\n");
          printf("\n1. Comprar\n");
          printf("2. Pagar\n");
          printf("0. Salir\n");
          scanf("%d", &opcion);
          switch(opcion) {
              case 1:
                  while (menu != 0) {
                      printf("\n\nSeleccione una categoria:\n");
                      printf("1. Bebidas no alcoholicas \n");
                      printf("2. Bebidas alcoholicas \n");
                      printf("3. Pastas \n");
                      printf("4. Carnes \n");
                      printf("5. Pescado\n");
                      printf("6. Postres\n");
                      printf("0. Salir\n");
                      scanf("%d",&menu);
                      switch(menu) {
                          case 1: printf ("\tBebidas no alcoholicas:\n");
                              printf ("\t\t1. Gaseosa linea Coca-Cola\t\t$10.00\n");
                              printf ("\t\t2. Gasosa linea Pepsi\t\t$9.80\n");
                              printf ("\t\t3. Gasosa linea Manaos\t\t$7.50\n");
                              printf ("\t\t4. Agua mineral\t\t\t$6.00\n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+10;
                                  break;
                                  case 2:
                                       total = total+9.8;
                                  break;
                                  case 3:
                                       total = total+7.5;
                                  break;
                                  case 4:
                                       total = total+6;
                                  break;
                              }
                          break;
                          case 2:
                              printf ("\tBebidas alcoholicas:\n");
                              printf ("\t\t1. Vodka \t\t$35.40\n");
                              printf ("\t\t2. Tequila \t\t$40.50 \n");
                              printf ("\t\t3. Ceverza \t\t$15.00 \n");
                              printf ("\t\t4. Dr.Lemon\t\t$18.00 \n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+35.4;
                                  break;
                                  case 2:
                                       total = total+40.5;
                                  break;
                                  case 3:
                                       total = total+15;
                                  break;
                                  case 4:
                                       total = total+18;
                                  break;
                              }
                          break;
                          case 3:
                              printf ("\tPastas:\n");
                              printf ("\t\t1. Fideos \t\t$30.75\n");
                              printf ("\t\t2. Ravioles\t\t$35.80\n");
                              printf ("\t\t3. Gnoquis \t\t$40.00\n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+30.75;
                                  break;
                                  case 2:
                                       total = total+35.8;
                                  break;
                                  case 3:
                                       total = total+40;
                                  break;
                              }
                          break;
                          case 4:
                              printf ("\tCarnes:\n");
                              printf ("\t\t1. Asado \t\t$40.00\n");
                              printf ("\t\t2. Vacio \t\t$65.30\n");
                              printf ("\t\t3. Parrillada\t\t$120.00\n");
                              printf ("\t\t4. Embutidos \t\t$20.50\n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+40;
                                  break;
                                  case 2:
                                       total = total+65.3;
                                  break;
                                  case 3:
                                       total = total+120;
                                  break;
                                  case 4:
                                       total = total+20.5;
                                  break;
                              }
                          break;
                          case 5:
                              printf ("\tPescados:\n");
                              printf ("\t\t1. Milanesa de pescado\t\t$25.00\n");
                              printf ("\t\t2. Boga asada \t\t$55.80\n");
                              printf ("\t\t3. Mariscos \t\t$89.45\n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+25;
                                  break;
                                  case 2:
                                       total = total+55.8;
                                  break;
                                  case 3:
                                       total = total+89.45;
                                  break;
                              }
                          break;
                          case 6:
                              printf ("\tPostres:\n");
                              printf ("\t\t1. Flan con creama/mixto \t\t$35.20\n");
                              printf ("\t\t2. Budin de pan \t\t$20.00\n");
                              printf ("\t\t3. Torta de cumpleaños (con cancion incluida)\t\t$150.80\n");
                              printf ("\t\t0. Volver\n\n");
                              scanf("%d",&item);
                              switch(item) {
                                  case 1:
                                      total = total+35.2;
                                  break;
                                  case 2:
                                       total = total+20;
                                  break;
                                  case 3:
                                       total = total+150.8;
                                  break;
                              }
                          break;
                      }// Fin switch categorias
                  }// Fin while categorias
              break;// Fin case Comprar
              case 2:
                   printf ("\nEl total de su compra es: %f\n\nGracias por su compra!",total);
              break;
          }// Fin switch opciones
    }// Fin while opciones
    system("PAUSE");
    return EXIT_SUCCESS;
}