opp in linkedlist

#include<stdio.h>
#include<stdlib.h>
int count=0;
struct node
{
int data;
struct node *next;
} *head=NULL,*newnode=NULL,*current=NULL,*temp;
void insert_beginning()
{
newnode=(struct node*)malloc(sizeof(struct node));
printf("Enter Data for Node");
scanf("%d",&newnode->data);
newnode->next=head;
head=newnode;
count++;
}
void insert_end()
{
newnode=(struct node*)malloc(sizeof(struct node));
printf("Enter Data for Node: ");
scanf("%d",&newnode->data);
newnode->next=NULL;
if(head==NULL)
head=newnode;
else
{
current=head;
while(current->next!=NULL)
current=current->next;
current->next=newnode;
}
count++;
}
void insert_position()
{
int pos,i;
printf("Enter the position to enter the new element\n");
scanf("%d",&pos);
if(pos<count)
{
newnode=(struct node*)malloc(sizeof(struct node));
printf("Enter Data for Node: ");
scanf("%d",&newnode->data);
for(i=1;i<pos;i++)
{
current=head;
current=current->next;
}
temp=current->next;
current->next=newnode;
newnode->next=temp;
count++;
}
else
printf("Enter a Valid Position");
}
void delete_beginning()
{
if(count>0)
{
current=head;
head=current->next;
free(current);
count--;
}
else
printf("Linked List is Empty\n");
}
void delete_end()
{
if(count>1)
{
current=head;
while(current->next->next!=NULL)
current=current->next;
current->next=NULL;
}
else
delete_beginning();
}
void delete_position()
{
int pos,i;
printf("Enter the position to delete the element\n");
scanf("%d",&pos);
if(pos<count)
{
for(i=1;i<pos;i++)
{
current=head;
current=current->next;
}
temp=current->next;
current->next=temp->next;
free(temp);
}
else
printf("Enter a Valid Position\n");
}
void display_LL()
{
if(count>0)
{
current=head;
printf("\nThe Elements of the Linked List Are:\n");
while(current!=NULL)
{
printf("%d\t",current->data);
current=current->next;
}
}
else
printf("Linked List is Empty\n");
}
void main()
{
int choice;
while(1)
{
printf("\nLinked List Operations-Menu:\n");
printf("1.Insertion at Beginning\n");
printf("2.Insertion at End\n");
printf("3.Insertion at Position\n");
printf("4.Deletion at Beginning\n");
printf("5.Deletion at End\n");
printf("6.Deletion at Position\n");
printf("7.Display the Linked List\n");
printf("8.Exit Program\n");
printf("\nEnter Your Choice: ");
scanf("%d",&choice);
switch(choice)
{
case 1:insert_beginning();
break;
case 2:insert_end();
break;
case 3:insert_position();
break;
case 4:delete_beginning();
break;
case 5:delete_end();
break;
case 6:delete_position();
break;
case 7:display_LL();
break;
case 8:exit(0);
default:printf("Wrong Choice Entered\n");
}
}
}