Grafica cercurci - bubble

#include <iostream>
#include <graphics.h>
#include <stdio.h>

using namespace std;

void BubleSort(int v[], int n);

int main()
{
    int n;
    char text[3];
    cout<<"Cate numere se citesc?";
    cin >> n;
    int L=n*140, l=400;
    int v[n];
    for (int i=0; i<n; i++)
    {
        cout<<"v["<<i<<"]=";
        cin>>v[i];
    }
    initwindow(L, l);
    int x=100;
    for (int i=0; i<n; i++, x+=100) // afisare numere
    {
        setcolor(WHITE);
        circle (x, 300, 40);
        sprintf(text, "%d", v[i]);
        settextstyle(3, 0, 2);
        int latime=textwidth(text);
        int inaltime=textheight(text);
        outtextxy(x-latime/2, 300-inaltime/2, text);
    }
    BubleSort(v, n);
    getch();
    return 0;
}



void BubleSort (int v[], int n)
{
    int ok, x=10, latime, inaltime;
    do{
        ok=1;
        x=100;
        for (int i=0; i<n-1; i++, x+=100)
        {
            cout<<"Se compara "<<v[i]<<" cu "<<v[i+1]<<endl;
            setcolor(RED);
            circle(x, 300, 40);
            circle(x+100, 300, 40);
            delay(1000);
            setcolor(WHITE);
            circle(x, 300, 40);
            circle(x+100, 300, 40);
            delay (500);
            char text[3];
            if (v[i]>v[i+1])
            {
                sprintf(text, "%d", v[i+1]);
                settextstyle(3, 0, 2);
                latime=textwidth(text);
                inaltime=textheight(text);
                setcolor(BLACK);
                outtextxy(x-20, 300-inaltime/2, "sters");
                outtextxy(x+80, 300-inaltime/2, "sters");
                setcolor(WHITE);
                outtextxy(x-latime/2, 300-inaltime/2, text);
                sprintf(text, "%d", v[i]);
                settextstyle(3, 0, 2);
                latime=textwidth(text);
                inaltime=textheight(text);
                outtextxy(x+100-latime/2, 300-inaltime/2, text);
                delay(1000);
                cout<<"Se interschimba "<<v[i]<<" cu "<<v[i+1]<<endl;
                swap(v[i], v[i+1]);
                ok=0;
            }
        }
    }while (!ok);
    setcolor(RED);
    settextstyle(3, 0, 3);
    outtextxy(50, 50, "Sirul este sortat!");
}