// See https://aka.ms/new-console-template for more information
class RandomRemoval
{

    public static void Main()
    {
        int[] listA = new int[] { 1, 1, 1, 2, 2, 3, 5, 8, 13, 22, 35, 45, 68, 72, 90 };
        int[] listB = new int[] { 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 90 };

        ArrayComparison(listA, listB);
    }
    public static void outputFromArray(int[] array)
    {
        for(int i=0; i < array.Length; i++)
        {
            Console.WriteLine("Duplicate element {0}: {1}", i, array[i]);
            Console.WriteLine(array[i]);
        }
    }
    public static void ArrayComparison(int[] primaryArray, int[] secondaryArray)
    {
        int duplicateArrayLength;
        
        int duplicateCount = 0;
        int matchItem;

        if (primaryArray.Length > secondaryArray.Length)
        {
            duplicateArrayLength = primaryArray.Length; 

        } else
        {
            duplicateArrayLength = secondaryArray.Length;
        }

        int[] duplicates = new int[duplicateArrayLength];

        for (int i = 0; i < primaryArray.Length; i++)
        {
            for (int j = 0; j < secondaryArray.Length; j++)
                if(primaryArray[i] == secondaryArray[j])
                {
                    matchItem = primaryArray[i]; 
                    if (!duplicates.Contains(matchItem))
                    {
                        duplicateCount++;
                    } else
                    {
                        break;
                    }
                    duplicates[duplicateCount] = matchItem;
                }

        }
    }
    public static int[] RandomArray(int length, int exclusiveUpperGenerationBound)
    {
        Random randomNumberGenerator = new Random();
        int[] randomArray = new int[length];

        for (int i = 0; i < randomArray.Length; i++)
        {
            int generatedValue;
            generatedValue = randomNumberGenerator.Next(exclusiveUpperGenerationBound);
            randomArray[i] = generatedValue;
            Console.WriteLine("Element {0} with value of {1} generated", i,
                generatedValue);
        }

        return randomArray;
    }
}