Opciones

#include<iostream>
#include<conio.h>
#include<ctime>
#include<cstdlib>
using namespace std;
using namespace System;
void generaNumeros(short *n1,short *n2,short *n3,short *n4) {
	*n1 = rand() % 40 + 1;
	*n2 = rand() % 40 + 1;
	*n3 = rand() % 40 + 1;
	*n4  = rand() % 40 + 1;

}
void hallarMayor(short *n1,short*n2,short*n3,short*n4,short *m) {
	/*m = *n1;
	if (*n2 > *m) *m = *n2;
	if (*n3 > *m) *m = *n3;
	if (*n4 > *m) *m = *n4;
	*/
	if (*n1 >= *n2&&*n1 >= *n3&&*n1 >= *n4)	*m = *n1;
	else if (*n2 >= *n1&&*n2 >= *n3&&*n2 >= *n4)	*m = *n2;
	else if (*n3 >= *n1&&*n3 >= *n2&&*n3 >= *n4)	*m = *n3;
	else *m = *n4;
}
void hallarMenor(short *n1, short*n2, short*n3, short*n4, short *r) {
	if (*n1 <= *n2&&*n1 <= *n3&&*n1 <= *n4)	*r = *n1;
	else if (*n2 <= *n1&&*n2 <= *n3&&*n2 <= *n4)	*r = *n2;
	else if (*n3 <= *n1&&*n3 <= *n2&&*n3 <= *n4)	*r = *n3;
	else *r = *n4;
}
short hallarAnteriorMayor(short *n1, short*n2, short*n3, short*n4, short *m) {
	hallarMayor(n1, n2, n3, n4, m);
	short nm;
	if (*n1 >= *n2&&*n1 >= *n3&&*n1 >= *n4&&*n1!=*m)	nm = *n1;
	else if (*n2 >= *n1&&*n2 >= *n3&&*n2 >= *n4&&*n2 != *m)	nm = *n2;
	else if (*n3 >= *n1&&*n3 >= *n2&&*n3 >= *n4&&*n3 != *m)	nm = *n3;
	else nm = *n4;
	return nm;
}
void graficar(short *n1, short *n2, short *n3, short *n4) {

	int num = *n1;
	for (int i = 1; i <=4; i++)
	{
		if (i == 1)num = *n1;
		if (i == 2)num = *n2;
		if (i == 3)num = *n3;
		if (i == 4)num = *n4;
		for (int j = 0; j <79-num-1; j++)
		{
			cout << " ";
		}
       if(num<10){
		cout <<" "<< num;
        }
       else{
         cout<<num;
          }
		for (int j = 0; j < num ; j++)
		{
			cout << "*";
		}
		cout << endl;

	}
}
void menu() {
	short op;
	short n1, n2, n3, n4;
	short r,m;
	do
	{
		cout << "Menu de opciones"<<endl;
		cout << "1. Generar numeros"<<endl;
		cout << "2. Hallar mayor"<<endl;
		cout << "3. Hallar menor"<<endl;
		cout << "4. Hallar anterior Mayor"<<endl;
		cout << "5. Graficar"<<endl;
		cout << "6. Salir"<<endl;

		do {
			cout << "Ingrese Opcion: ";
			cin >> op;
		} while (op < 0 || op>6);
		switch (op)
		{
		case 1: {
			cout << "Los numeros son: ";
			generaNumeros(&n1, &n2, &n3, &n4);
			cout << n1 << " " << n2 << " " << n3 << " " << n4 << endl; }; break;
		case 2: {
			cout << "El mayor es: ";
			hallarMayor(&n1, &n2, &n3, &n4, &m);
			cout << m << endl; }; break;
		case 3: {
			cout << "El menor es: ";
			hallarMenor(&n1, &n2, &n3, &n4, &r);
			cout << r << endl; }; break;
		case 4: {cout<<"EL anterior al mayor es: "<<hallarAnteriorMayor(&n1, &n2, &n3, &n4, &m)<<endl; }; break;
		case 5: graficar(&n1, &n2, &n3, &n4); break;
		default:
			break;
		}
	} while (op != 6);

}
int main() {
	srand(time(NULL));
	menu();
	_getch();
	return 0;
}