/*
Given array is already sorted, and it has duplicate elements. Write a program to remove duplicate elements and return new array without any duplicate elements. The array should contain only unique elements.
*/

public class MyDuplicateElements
{

    public static int[] removeDuplicates(int[] input)
    {
        int j = 0;
        int i = 1;
        //return if the array length is less than 2
        if(input.length < 2)
            {
                return input;
            }
        while(i < input.length)
            {
                if(input[i] == input[j])
                    {
                        i++;
                    }
                else
                    {
                        input[++j] = input[i++];
                    }
            }
        int[] output = new int[j+1];
        for(int k=0; k<output.length; k++)
            {
                output[k] = input[k];
            }
        return output;
    }

    public static void main(String a[])
    {
        int[] input1 = {2,3,6,6,8,9,10,10,10,12,12};
        int[] output = removeDuplicates(input1);
        for(int i:output)
            {
                System.out.print(i+" ");
            }
    }
}