#include <iostream>
using namespace std;
                   //alt forma:                        ///alt forma:
node *p=new node;  // t->next=new node;                ///t=t->next;
t->next=p;         //t->next->val=x;                   ///t->val=x;
p->next=NULL;      //t->next->next=NULL;               ///t-next=NULL;
p->val =x;         //t=t->next;
t=p;//lub t=t-next;//



int main()
{
    node *Q=NULL;
    node *t=NULL;

    return 0;
}