#include "stdafx.h"
#include <iostream>

using namespace std;
void enterData(int numbers[], int &size);
void sredno(int numbers[], int size);
void notZeroAndZero(int numbers[], int size);

void main()
{
	int numbers[25];
	int size = 0;

	int sumNotZero = 0;
	int countZero = 0;

	while (true)
	{
		int option;
		cout << "Izberi 1 za vavezdane na razmernost i chisla" << endl;
		cout << "Izberi 2 za sredno" << endl;
		cout << "Izberi 3 za proizvedenie ot nenulevi i broj nulevi." << endl;
		cin >> option;

		switch (option)
		{
		case 1:
			enterData(numbers, size);
			break;
		case 2:
			sredno(numbers, size);
			break;
		case 3:
			notZeroAndZero(numbers, size);
			break;

		default:
			cout << "Nevaliden vhod" << endl;
		}
	}
}

void enterData(int numbers[], int &size)
{
	cout << "Broj chisla: ";
	cin >> size;

	while (size < 0 || size > 25)
	{
		cout << "Nevaliden razmer!" << endl;
		cout << "Vavedi razmer otnovo: ";
		cin >> size;
	}


	for (int i = 0; i < size; i++)
	{
		cin >> numbers[i];
	}
}

void sredno(int numbers[], int size)
{
	int sum = 0;

	for (int i = 0; i < size; i++)
	{
		if (numbers[i] > 0)
		{
			sum += numbers[i];
		}
	}

	double sredno = double(sum) / size;

	cout << "Sredno-aritmetichno: " << sredno << endl;
}

void notZeroAndZero(int numbers[], int size)
{
	int count = 0;
	int proizv = 1;

	for (int i = 0; i < size; i++)
	{
		if (numbers[i] == 0)
		{
			count++;
		}

		else
		{
			proizv *= numbers[i];
		}
	}

	cout << "Broj: " << count << endl;
	cout << "Prozivedenie: " << proizv << endl;
}