#include <iostream>
//#include <cconio>
using namespace std;
struct nod {
int info;
nod *next;
};
void pune(nod* &v,nod* &sf,int x)
{nod *c;
if(!v)
{v=new nod;
v->info=x;
v->next=0;
sf=v;}
else
{c=new nod;
sf->next=c;
c->info=x;
sf=c;
sf->next=0;}
}
void afisare(nod *v)
{nod *c;
c=v;
while(c)
{cout<<c->info<<" ";
c=c->next;}
}
void scoate(nod* &v)
{nod* c;
if(!v)
cout<<"coada este vida si nu mai ai ce elimina!!!";
else
{c=v;
v=v->next;
delete c;}
}
int main()
{
cout << "Hello world!" << endl;
int n,a;
nod *varf=0,*ultim=0;//varful si ultimul element al cozii
cout<<"numarul initial de noduri ";
cin>>n;
for(int i=1;i<=n;i++)
{cout<<"valoarea de adaugat in coada ";
cin>>a;
pune(varf,ultim,a);
}
cout<<endl;
afisare(varf);
int nre,nra;
cout<<endl<<"cate adaugari ?";
cin>>nra;
for(int i=1;i<=nra;i++)
{cout<<"valoarea de adaugat ";
cin>>a;
pune(varf,ultim,a);}
cout<<endl<<"dupa adaugare"<<endl;
n=n+nra;
cout<<"coada are "<<n<<" elemente"<<endl;
afisare(varf);
cout<<endl<<"cate eliminari ?";
cin>>nre;
for(int i=1;i<=nre;i++)
scoate(varf);
cout<<endl<<"dupa eliminare"<<endl;
n=n-nre;
cout<<"coada are "<<n<<" elemente"<<endl;
afisare(varf);
//prelucrez varful cozii: de exemplu se poate dubla continutul:
varf->info=2*varf->info;
cout<<endl<<"dupa dublarea valorii varfului "<<endl;
afisare(varf);
//getch();
return 0;
}
