链表

#include<bits/stdc++.h>
using namespace std;
struct Node
{
int data;
Node *next;
};
Node *head,*p,*r;
int x;
int main()
{
cin>>x;
head=new Node;
r=head;
while(x!=-1)
{
p=new Node;
p->data=x;
p->next=NULL;
r->next=p;
r=p;
cin>>x;
}
p=head->next;
while(p->next!=NULL)
{
cout<<p->data<<" ";
p=p->next;
}
cout<<p->data<<endl;
return 0;

}