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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. #define SUCCESS         0
  9. #define BUF_SIZE        64
  10. #define HPY_BTH_MSG     "I, %s, wish you a happy birthday, %s!!!\n"
  11. #define SPECIAL_PERSON  "Tage"
  12. #define GUESTS          { "Eduardo", "Marcos", "Matheus", "Breno", "Romoff", "Rafa", "Barizon" }
  13.  
  14. #include <stdio.h>
  15. #include <stdlib.h>
  16. #include <string.h>
  17.  
  18. typedef struct guest Guest;
  19. Guest*  invite(char* guest_name, Guest* guest_list);
  20. void    wish_happy_birthday(Guest* guest_list, char* special_person);
  21. void    cleanup_mess(Guest* guest_list);
  22.  
  23. int main(void)
  24. {   
  25.     char    special_person[BUF_SIZE] = SPECIAL_PERSON;    
  26.     char*   guests[] = GUESTS;
  27.     int     guest_num = sizeof(guests) / sizeof(guests[0]);
  28.     Guest*  guest_list = NULL;
  29.  
  30.     for (int i = 0; i < guest_num; i++)
  31.         guest_list = invite(guests[i], guest_list);
  32.  
  33.     wish_happy_birthday(guest_list, special_person);
  34.     cleanup_mess(guest_list);
  35.  
  36.     return SUCCESS;
  37. }
  38.  
  39. struct guest
  40. {
  41.     char name[BUF_SIZE];
  42.     struct guest* next;
  43. };
  44.  
  45. Guest* invite(char* guest_name, Guest* guest_list)
  46. {
  47.     Guest* guest = (Guest*)malloc(sizeof(Guest));
  48.     strcpy(guest->name, guest_name);
  49.     guest->next = guest_list;
  50.     return guest;    
  51. }
  52.  
  53. void wish_happy_birthday(Guest* guest_list, char* special_person)
  54. {
  55.     while (guest_list != NULL)
  56.     {
  57.         printf(HPY_BTH_MSG, guest_list->name, special_person);
  58.         guest_list = guest_list->next;
  59.     }
  60. }
  61.  
  62. void cleanup_mess(Guest* guest_list)
  63. {
  64.     Guest* temp;
  65.     while (guest_list != NULL)
  66.     {
  67.         temp = guest_list;
  68.         guest_list = guest_list->next;
  69.         free(temp);
  70.     }
  71. }
  72.  
Success #stdin #stdout 0.01s 5320KB
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stdout
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I, Barizon, wish you a happy birthday, Tage!!!
I, Rafa, wish you a happy birthday, Tage!!!
I, Romoff, wish you a happy birthday, Tage!!!
I, Breno, wish you a happy birthday, Tage!!!
I, Matheus, wish you a happy birthday, Tage!!!
I, Marcos, wish you a happy birthday, Tage!!!
I, Eduardo, wish you a happy birthday, Tage!!!
https://ideone.com/Po8Ojn
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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