Problema grafica (smileyface)/ liste: creare/inserare

***Creare lista pana la citirea lui 0:***
#include <iostream>

using namespace std;

struct nod
{
    int info;
    nod* adr;
};

int n;

void parcurgere(nod* v)
{
    nod* c=v;
    while(c)
    {
        cout<<c->info<<" ";
        n++;
        c=c->adr;
    }
}

nod* creare2()
{
    nod* prim, *ultim, *p;
    int nr;
    prim=new nod;
    ultim=prim;
    cout<<"Introduceti un numar: "; cin>>nr;
    if (nr==0)
    {
        cout<<"Lista este vida.";
        return 0;
    }
    else
    {
        prim->info=nr;
        prim->adr=NULL;
        cout<<"Introduceti un numar: "; cin>>nr;
        while(nr){
            p=new nod;
            p->info=nr;
            ultim->adr=p;
            ultim=p;
            ultim->adr=NULL;
            cout<<"Introduceti un numar: "; cin>>nr;
        };
        return prim;
    }
}

int main()
{
    nod* prim;
    int k, inf;
    prim=creare2();
    parcurgere(prim);
    cout<<" numarul de noduri este "<<n;
    return 0;
}


***Creare lista pana la 0 si inserare element in lista:***
#include <iostream>

using namespace std;

int n;

struct nod
{
    int info;
    nod*leg;
};

nod* creare()
{
    nod*prim,*ultim,*p;
    int nr;
    prim=new nod;
    ultim=prim;
    cout<<"Nr: ";
    cin>>nr;
    if(nr==0)
    {
        cout<<"Lista este vida";
        return 0;
    }
    else
    {
        prim->info=nr;
        prim->leg=NULL;
        cout<<"Nr: "; cin>>nr;
        while(nr)
        {
            p=new nod;
            p->info=nr;
            ultim->leg=p;
            ultim=p;
            ultim->leg=NULL;
            cout<<"Nr: "; cin>>nr;
        };
        return prim;
    }
}

void parcurgere(nod*prim)
{
    nod*p;
    p=prim;
    while(p)
    {
        cout<<p->info<<" ";
        n++;
        p=p->leg;
    }
}

int inserare(nod* &prim, int k, int inf)
{
    nod* q;
    if(k>n+1)
        return 0;
    else
    {
        nod* p=new nod;
        p->info=inf;
        if(k==1)
        {
            p->leg=prim;
            prim=p;
        }
        else
            if(k==n+1)
            {
                q=prim;
                while(q->leg)
                    q=q->leg;
                q->leg=p;
                p->leg=NULL;
            }
            else
            {
                q=prim;
                int ct=1;
                while(ct<k-1)
                {
                    q=q->leg;
                    ct++;
                }
                p->leg=q->leg;
                q->leg=p;
            }
        return 1;
    }
}

int main()
{
    nod* prim;
    int k,inf;
    prim=creare();
    parcurgere(prim);
    cout<<"Nr. de noduri este: "<<n;
    cout<<endl<<"Pozitia si valoarea pentru inserare: ";
    cin>>k>>inf;
    if(!inserare(prim,k,inf))
        cout<<"Pozitia introdusa nu se afla in lista!";
    else
        parcurgere(prim);
    return 0;
}
***Problema grafica smiley face:***
#include <graphics.h>
#include <conio.h>
#include <dos.h>

void smiley(int x)
{
    int r=50;
    setcolor(YELLOW);
    circle(x,200,r);
    setfillstyle(SOLID_FILL,YELLOW);
    floodfill(x,200,YELLOW);
    setcolor(BLUE);
    //ochi stanga;
    circle(x-(r/3),200-r/2,7);
    setfillstyle(SOLID_FILL,BLUE);
    floodfill(x-r/3,200-r/2,BLUE);
    //ochi dreapta
    circle(x+r/3,200-r/2,7);
    setfillstyle(SOLID_FILL,BLUE);
    floodfill(x+r/3,200-r/2,BLUE);
    //gura
    setcolor(RED);
    line(x-r/3,200+r/3,x+r/3,200+r/3);
    arc(x,200+r/3,180,360,r/3);
    setfillstyle(SOLID_FILL,RED);
    floodfill(x,200+r/3+1,RED);
    ///textr sub smiley
    outtextxy(x,200+2*r,"Smiley ");
    delay(27);
    setcolor(BLACK);
    circle(x,200,r);
    setfillstyle(SOLID_FILL,BLACK);
    floodfill(x,200,BLACK);
    //stergere ochi stanga
    circle(x-r/3,200-r/2,7);
    floodfill(x-r/3,200-r/2,BLACK);
    //stergere ochi dreapta
    circle(x+r/3,200-r/2,7);
    floodfill(x+r/3,200-r/2,BLACK);
    //stergere gura
    line(x-r/3,200+r/3,x+r/3,200+r/3);
    arc(x,200+r/3,180,360,r/3);
    setfillstyle(SOLID_FILL,BLACK);
    floodfill(x,200+r/3+1,BLACK);

}
using namespace std;

 int main()
{
    initwindow(800,800);
    delay(200);
   // line(100,100,200,100);
    setcolor(YELLOW);
    int i=100;
    int j=700;
    int dir=1;
    /// bucla INFINITA
    while(i<750 && i>50)
    {
        smiley(i);
        i+=dir;
        if(i==749)
            dir=-1;
        if(i==51)
            dir=1;
    }
    /* while(i<750 && j>0)
    {
        smiley(i);
       /* setcolor(GREEN);
        rectangle(j,250,j+100,350);
        delay(10);
        setcolor(BLACK);
        circle(i,200,50);
        rectangle(j,250,j+100,350);
        i++;
        j--;

    }*/
    getch();
    closegraph();
}