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  1. /******************************************************************************
  2.  
  3. Welcome to GDB Online.
  4. GDB online is an online compiler and debugger tool for C/C++.
  5. Code, Compile, Run and Debug online from anywhere in world.
  6.  
  7. *******************************************************************************/
  8. #include <stdio.h>
  9. #include <stdlib.h>
  10. #include <string.h>
  11.  
  12. struct flavor
  13. {
  14.     char name[20];
  15.     double small_price;
  16.     double medium_price;
  17.     double large_price;
  18.     struct flavor *next;
  19.     struct flavor *prev;
  20. };
  21. typedef struct flavor f;
  22. f *head = NULL;
  23. f *tail = NULL;
  24.  
  25. void add_flavor(char name[], double small_price, double medium_price, double large_price)
  26. {
  27.     f *new_flavor = (f*) malloc(sizeof(f));
  28.     strcpy(new_flavor->name, name);
  29.     new_flavor->small_price = small_price;
  30.     new_flavor->medium_price = medium_price;
  31.     new_flavor->large_price = large_price;
  32.     new_flavor->next = NULL;
  33.     new_flavor->prev = tail;
  34.     if (tail != NULL)
  35.     {
  36.         tail->next = new_flavor;
  37.     }
  38.     tail = new_flavor;
  39.     if (head == NULL)
  40.     {
  41.         head = new_flavor;
  42.     }
  43. }
  44.  
  45. void display_flavors() 
  46. {
  47.     f *current = head;
  48.     while (current != NULL)
  49.     {
  50.         printf("%s:\n", current->name);
  51.         printf("Small - %.2f INR\n", current->small_price);
  52.         printf("Medium - %.2f INR\n", current->medium_price);
  53.         printf("Large - %.2f INR\n", current->large_price);
  54.         current = current->next;
  55.     }
  56. }
  57.  
  58. void purchase_flavor(char name[], char size[]) 
  59. {
  60.     f *current = head;
  61.     while (current != NULL)
  62.     {
  63.         if (strcmp(current->name, name) == 0)
  64.         {
  65.             double price;
  66.             if (strcmp(size, "Small") == 0)
  67.             {
  68.                 price = current->small_price;
  69.             }
  70.             else if (strcmp(size, "Medium") == 0) 
  71.             {
  72.                 price = current->medium_price;
  73.             }
  74.             else if (strcmp(size, "Large") == 0)
  75.             {
  76.                 price = current->large_price;
  77.             }
  78.             else
  79.             {
  80.                 printf("Invalid size.\n");
  81.                 return;
  82.             }
  83.             printf("You have purchased a %s ice cream, size %s, for %.2f INR.\n", current->name, size, price);
  84.             return;
  85.         }
  86.         current = current->next;
  87.     }
  88.     printf("Sorry, we don't have %s flavor.\n", name);
  89. }
  90.  
  91. int main()
  92. {
  93.     add_flavor("Vanilla", 20.0, 30.0, 40.0);
  94.     add_flavor("Chocolate", 25.0, 35.0, 45.0);
  95.     add_flavor("Strawberry", 30.0, 40.0, 50.0);
  96.     add_flavor("Mango", 35.0, 45.0, 55.0);
  97.     add_flavor("Butterscotch", 40.0, 50.0, 60.0);
  98.     printf("Welcome to the ice cream vending machine!\n");
  99.     printf("Please select a flavor and size:\n");
  100.     display_flavors();
  101.     char selected_flavor[20];
  102.     char selected_size[10];
  103.     scanf("%s %s", selected_flavor, selected_size);
  104.     purchase_flavor(selected_flavor, selected_size);
  105.     return 0;
  106. }
Success #stdin #stdout 0s 5516KB
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stdin
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Vanilla
Small
stdout
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Welcome to the ice cream vending machine!
Please select a flavor and size:
Vanilla:
Small - 20.00 INR
Medium - 30.00 INR
Large - 40.00 INR
Chocolate:
Small - 25.00 INR
Medium - 35.00 INR
Large - 45.00 INR
Strawberry:
Small - 30.00 INR
Medium - 40.00 INR
Large - 50.00 INR
Mango:
Small - 35.00 INR
Medium - 45.00 INR
Large - 55.00 INR
Butterscotch:
Small - 40.00 INR
Medium - 50.00 INR
Large - 60.00 INR
You have purchased a Vanilla ice cream, size Small, for 20.00 INR.
https://ideone.com/gdnjdj
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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