#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 sum = 0;

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

        else
        {
            sum += numbers[i];
        }
    }

    cout << "Broj: " << count << endl;
    cout << "Suma: " << sum << endl;
}