using System;

public class Program

{

​

    public static int[] ProductOfAllOtherNumbers(int[] arrayOfInts)

    {

        int[] productArray = new int[arrayOfInts.Length];

        if (arrayOfInts.Length < 1)

        {

            return productArray;

        }

        int previousProduct = 1;

        int previousMultiplier = 1;

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

        {

            productArray[i] = previousMultiplier * previousProduct;

            previousMultiplier = arrayOfInts[i]; // update previous multiplier

            previousProduct = productArray[i];

        }

        //Console.WriteLine(string.Join(" ", productArray));

        int futureProduct = 1;

        int futureMultiplier = 1;

        for(int i = productArray.Length - 1; i >= 0; i--)

        {

            productArray[i] = productArray[i] * futureProduct;

            futureMultiplier = arrayOfInts[i]; // update future multiplier

            futureProduct = futureMultiplier * futureProduct;

        }

        return productArray;

    }

    public static void Main()

    {

        int[] maxProduct = ProductOfAllOtherNumbers(new int[]{2, 4, 10});

        Console.WriteLine(string.Join(" ", maxProduct));

    }

}