E2-H3-PUNTEROS

#include <iostream>
#include <conio.h>
using namespace std;
using namespace System;
void generar_numeros(int &n1, int &n2, int &n3, int &n4)
{
    Random r;
    n1 = r.Next(1, 41);
    do
    {
        n2 = r.Next(1, 41);
    } while (n1==n2);
    do
    {
        n3 = r.Next(1, 41);
    } while ((n3 == n2)||(n3==n1));
    do
    {
        n4 = r.Next(1, 41);
    } while ((n4 == n1)||(n4==n2)||(n4==n3));
}
int hallar_mayor(int n1, int n2, int n3, int n4)
{
    int mayor = n1;
    if (n2 > mayor) mayor = n2;
    if (n3 > mayor) mayor = n3;
    if (n4 > mayor) mayor = n4;
    return mayor;
}
int hallar_menor(int n1, int n2, int n3, int n4)
{
    int menor = n1;
    if (n2 < menor) menor = n2;
    if (n3 < menor) menor = n3;
    if (n4 < menor) menor = n4;
    return menor;
}
int hallar_anterior_mayor(int n1, int n2, int n3, int n4, int mayor)
{
    int anteriormayor;
    int mayor = n1;
    if ((n2 < n1) && (n2 > n3) && (n2 > n4))
        anteriormayor = n2;
    if ((n3 < n1) && (n3 > n2) && (n3 > n4))
        anteriormayor = n3;
    if ((n4 < n1) && (n4 > n3) && (n4 > n2))
        anteriormayor = n4;
}
void imprime_linea(int n)
{
    int blancos;
    if (n < 10)
        blancos = 78 - n;
    else
        blancos = 78 - (n + 1);
    for (int i = 0;i < blancos;i++)
        cout << " ";
    cout << n;
    for (int i = 0;i <= n;i++)
        cout << "*";
    cout << endl;
}
void graficar(int n1, int n2, int n3, int n4)
{
    imprime_linea(n1);
    imprime_linea(n2);
    imprime_linea(n3);
    imprime_linea(n4);
}
void main()
{
    int n1, n2, n3, n4, mayor, menor, segundo, tercero;
    generar_numeros(n1, n2, n3, n4);
    cout << "Numeros generados: ";
    cout << n1 << " " << n2 << " " << n3 << " " << n4 << endl;
    mayor = hallar_mayor(n1, n2, n3, n4);
    menor = hallar_menor(n1, n2, n3, n4);
    tercero = hallar_anterior_mayor(n1, n2, n3, n4,mayor);
    segundo= n1 + n2 + n3 + n4 - mayor - menor - tercero;
    graficar(menor, segundo, tercero, mayor);
}