using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Remove Duplicates from sorted array \n\n");

        var nums = new int[]{ 1, 1, 2};

        //By value

        RemoveDuplicates(nums);

        Console.WriteLine("after RemoveDuplicates(nums)");

        foreach( var i in nums)

        {

            Console.Write($" {i}");

        }

        //By ref

        RemoveDuplicates(ref nums);

        Console.WriteLine("\n\nafter RemoveDuplicates(ref nums)");

        foreach( var i in nums)

        {

            Console.Write($" {i}");

        }

    }

    public static int RemoveDuplicates(ref int[] nums) {

        nums = nums.OrderBy(n => n).Distinct().ToArray();

        return nums.Length;

   }

    public static int RemoveDuplicates(int[] nums) {

        nums = nums.OrderBy(n => n).Distinct().ToArray();

        return nums.Length;

   }

}