using System;

​

public class Program

{

    public static void Main()

    {

        Zadatak2();

    }

​

    public static void Zadatak2()

    {

        Console.WriteLine("Number of even numbers at odd places is: " + NumberOfEvenNumbersAtOddPlaces(Enter10PositiveNumbers()));

    }

​

    public static int[] Enter10PositiveNumbers()

    {

        int[] arrayOfInts = new int[10];

        for (int i = 0; i < 10; i++)

        {

            bool isNumberValid = false;

            int enteredNumber = 0;

            while (!isNumberValid || enteredNumber < -1 || enteredNumber == 0)

            {

                Console.WriteLine("Please enter valid integer number for {0}. member of array", i + 1);

                isNumberValid = int.TryParse(Console.ReadLine(), out enteredNumber);

            }

​

            if (enteredNumber == -1)

            {

                break;

            }

​

            arrayOfInts[i] = enteredNumber;

        }

​

        Console.WriteLine("Array you generated: [{0}]", string.Join(", ", arrayOfInts));

        return arrayOfInts;

    }

​

    public static int NumberOfEvenNumbersAtOddPlaces(int[] arrayOfInts)

    {

        int sum = 0;

        for (int i = 0; i < arrayOfInts.Length; i = i + 2)

        {

            if (arrayOfInts[i] == 0)

            {

                break;

            }

​

            if (arrayOfInts[i] % 2 == 0)

            {

                sum++;

            }

        }

​

        return sum;

    }

}