ponter 01

#include<stdio.h>
#include<stdio.h>

struct mylist
{
    int data;
    struct mylist*next;

};
struct mylist* head=NULL;

void display()
{
    struct mylist*temp=head;
    while (temp!=NULL)
    {
        printf("%d->",temp->data);
        temp=temp->next;
    }
}
void insert_first(int data)
{
    struct mylist*temp=head;
    struct mylist*new_node=(struct mylist*)malloc(sizeof(struct mylist));
    temp->data=data;
    temp->next=head;
    head=temp;
}
void insert_last(int data)
{
    struct mylist*temp=head;
    struct mylist*new_node=(struct mylist*)malloc(sizeof(struct mylist));
    new_node->data=data;
     new_node->next=NULL;
     if(temp=NULL)
     {
         head=new_node;
         return;
     }
     while(temp->next!=NULL)
     {
         temp=temp->next;

     }
     temp->next=new_node;
     return;

}
void creat(int data)
{
    insert_last(data);
}
int main()
{
    insert_last(5);
     insert_last(7);
     display();

     return 0;

}