Write, efficient code for extracting unique elements from
a sorted list of array.

e.g. (1, 1, 3, 3, 3, 5, 5, 5, 9, 9, 9, 9) -> (1, 3, 5, 9).

Answer Posted / karthikeyan s

/* Using LinkedHashSet concept */
/* No duplicate checking */
import java.util.*;

class Main
{
public static void main(String args[])
{
Scanner obj=new Scanner(System.in);
LinkedHashSet <Integer> l1=new LinkedHashSet<Integer>();
int n=obj.nextInt();
int a=0;
while(n-->0)
{
a=obj.nextInt();
l1.add(a);
}
System.out.println(l1 + " ");
}
}

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