int main()
{
do
{
temp=(n*)malloc(sizeof(n));
printf("Enter the element:");
scanf("%d",&temp->data);
temp->next=NULL;
if(start==NULL)
{
temp->prev=NULL;
start=temp;
}
else
{
temp->prev=rear;
rear->next=temp;
}
rear=temp;
printf("Enter any no. to continue creation else enter 0:");
scanf("%d",&flag);
}while(flag);
printf("You have succefully created a lisked list as follows\n");
display();
printf("Enter choice for your desired operation:\n1:Insert\n2:Delete\n3:Display\n\n");
scanf("%d",&flag);
do
{
switch(flag)
{
case 1:
insert();
break;
case 2:
del();
break;
case 3:
printf("Current linklist in order contains:\n");
display();
printf("Current linklist in reverse order contains:\n");
rdisp();
break;
default:
printf("You have enetered wrong choice\n");
}
printf("Enter choice for your desired operation:\n1:Insert\n2:Delete\n3:Display\n0:End\n\n");
scanf("%d",&flag);
}
while(flag);
return 0;
}
void main()
{
int n,num,num1;
while(1)
{
clrscr();
printf("\npress 1 for insert an element on rear\n");
printf("press 2 for delete an element from front\n");
printf("press 3 for search an element from list\n");
printf("press 4 for count the list element\n");
printf("press 5 for display queue element in forward direction\n");
printf("press 6 for display queue element in reverse direction\n");
printf("press 7 for exit\n\n");
printf("\nEnter your choice\n");
scanf("%d",&n);
switch(n)
{
case 1:
printf("\nEnter an element for insertion:\n");
scanf("%d",&num);
insertion(num);
break;
case 2:
deletion();
break;
case 3:
printf("\nEnter which element will be search:\n");
scanf("%d",&num1);
search(num1);
break;
case 4:
printf("\nQueue contain %d element\n",rear);
break;
case 5:
fdisp();
break;
case 6:
rdisp();
break;
case 7:
printf("\nTHANK YOU FOR USING THIS PROGRAM..\n");
getch();
exit(0);
}
getch();
}
}
