#include <stdio.h>

struct Case
{
  	char   Name[100];
  	int    CaseID;
  	char   CaseStatus[100];
  	struct Case *CasePointer;
};
 
typedef  struct  Case*  Pointer;
 
void GetCaseInfo(Pointer ptr);
void PrintOptions();
void PrintList(Pointer *ptr);
 
void main( )
{
  	int Option;
  	Pointer head = NULL;
  	Pointer p, q;
 
  	head = (Pointer)malloc(sizeof(struct Case));
  	GetCaseInfo(head);
  	PrintList(&head);
	 
  	PrintOptions();
  	scanf("%d", &Option);
  	printf("\n");
	 
  	while(Option != 3)
  	{
    		if(Option == 1)
    		{
      			p = (Pointer)malloc(sizeof(struct Case));
      			GetCaseInfo(p);
      			p->CasePointer = head;
      			head = p;
      			p = NULL;
    		}
    		if(Option == 2)
    		{
      			if(head != NULL)
      			{
        			p = head;
        			q = head->CasePointer;
        			head = q;
        			p->CasePointer = NULL;
        			q = NULL;
        			free(p);
      			}
    		}
	 
    		PrintList(&head);
    		PrintOptions();
    		scanf("%d", &Option);
    		printf("\n");
  	}
}
 
void PrintList(Pointer *ptr)
{
  	Pointer head;
  	Pointer p;
 
  	head = *ptr;
 
  	p = head;
 
  	while(p != NULL)
  	{
    		printf("%s\n", p->Name);
    		printf("%d\n", p->CaseID);
    		printf("%s\n", p->CaseStatus);
    		p = p->CasePointer;
    		printf("\n");
  	}
}
 
void GetCaseInfo(Pointer ptr)
{
  	printf("Enter customer's last name: ");
  	scanf("%s", ptr->Name);
 
  	printf("Enter Case ID             : ");
  	scanf("%d", &(ptr->CaseID));
 
  	printf("Enter status (no gaps)    : ");
  	scanf("%s", ptr->CaseStatus);
 
  	printf("\n");
}
 
void PrintOptions()
{
  	printf("Options:\n");
  	printf("(1) Add another case to the front the Link-List.\n");
  	printf("(2) Remove a case from the Link-List. \n");
  	printf("(3) Quit!\n");
  	printf("Select an option: ");
}