Untitled

#include<stdio.h>
#include<stdlib.h>
struct node
{
    int data1;
    char data2;
    struct node* next;
};
struct node* head;
void createlist()
{
    struct node* n1,*n2,*n3;
    n1 = (struct node*)malloc(sizeof(struct node));
    n2 = (struct node*)malloc(sizeof(struct node));
    n3 = (struct node*)malloc(sizeof(struct node));

    n1->data1 = 10,n1->data2 = 'a';
    n2->data1 = 20,n2->data2 = 'b';
    n3->data1 = 30,n3->data2 = 'c';

    n1->next = n2;
    n2->next = n3;
    n3->next = NULL;
    head = n1;

}
void display()
{
    struct node* temp;
    temp = head;
    while(temp != NULL)
    {
        printf("%d %c\n",temp->data1,temp->data2);
        temp = temp->next;
    }
}
void insert_beg()
{
    struct node *newnode;
   newnode = (struct node*)malloc(sizeof(struct node));
   printf("Enter Data of the node to insert at beginning\n");
   scanf("%d %c",&newnode->data1,&newnode->data2);
   newnode->next = head;
   head = newnode;
}
void insert_end()
{
    struct node* tail = head;
    while(tail->next != NULL)
    {
        tail = tail->next;
    }
    
    struct node *newnode;
   newnode = (struct node*)malloc(sizeof(struct node));

   printf("Enter Data of the node to insert at End\n");
   scanf("%d %c",&newnode->data1,&newnode->data2);

   newnode->next = NULL;
   tail->next = newnode;
   tail = newnode;

}
void insert_at_middle()
{
    int position;
    struct node* newnode,*temp;
    newnode = (struct node*) malloc(sizeof(struct node));

    printf("Enter position to insert a node\n");
    scanf("%d",&position);

    printf("Enter data to insert at that position\n");
    scanf("%d %c",&newnode->data1,&newnode->data2);
    
    temp = head;
    for(int i = 1;i<position-1;i++)
    {
       temp = temp->next;
    }
    newnode->next = temp->next;
    temp->next = newnode;
}
int main()
{
    createlist();
    printf("Your Linked List is given below\n");
    display();
    insert_beg();
    printf("After inserting at begeinning Linked list given below\n");
    display();
    insert_end();
    printf("After Inserting at middle linked list given below\n");
    display();
    insert_at_middle();
    printf("After Inserting at middle linked list given below\n");
    display();
    return 0;
}