Adding random numbers into the linkedlist

I want to add random numbers into a linkedlist , and I dont know how to get the position for random numbers ? The problem indicates that the user should insert the number of elements and the program having the ability to create the nodes with a random value . here is what i have tried , but I got nothing:

          class Node
        {
        public:
            int info;
            Node* next;
        };
        class List:public Node
        {

            Node *first,*last;
        public:
            List()
            {
                first=NULL;
                last=NULL;
            }
            void create();
            void insert();
            void delet();
            void display();
            void search();
        };
        void List::create()
        {
            Node *temp;
            temp=new Node;
            int n;
            int z;
            cout<<"\nEnter the Element:";
            cin>>n
            if(first==NULL)
            {
                first=temp;
                last=first;
            }

            else
            {
                last->next=temp;
                last=temp;
            }
        }
        void List::insert()
        {
          * Node *prev,*cur;
        int z;
        prev=NULL;
        cur=first;
        int count=1,pos,ch,n;
        Node *temp=new Node;
        cout<<"\nEnter the number of Elements:";
        cin>>z;
for(int i,i<z,i++)
{
        temp->info=rand();
        temp->next=NULL;
}
        cout<<"\nINSERT AS\n1:FIRSTNODE\n2:LASTNODE\n3:IN BETWEEN FIRST&LAST NODES";
        cout<<"\nEnter Your Choice:";
        cin>>ch;
        switch(ch)
        {
        case 1:
            temp->next=first;
            first=temp;
            break;
        case 2:
            last->next=temp;
            last=temp;
            break;
        case 3:
    while(count!=pos)
            {
                prev=cur;
                cur=cur->next;
                count++;
            }
          if(count==pos)
           {
               prev->next=temp;
               temp->next=cur;
            }
            else
                cout<<"\nNot Able to Insert";
            break;*/
        }