/*
Liste
A simplu imlantuite
B dublu inlantuite
C Circulare

A Liste simplu inlantuite
strategii de operare
A1 Simpli LIFO (stive)
operatii
    -push
    -pop
instrument
    -is empty
    -what type
lista * pop(lista *L,int *old,int *err)
{
if(L->counter==0)
    {
     *err=1
     return L;
    }
else
if(L->counter==1)
{*old=l->start->info;
 *er=0;
 delete L->start;
 L->start=L-curent;
 L->counter=0;
 return L
 }
 else
{

}

*/