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  1. import java.util.*;
  2. class Solution
  3. {
  4. 	public static void main(String[]args)
  5. 	{
  6. 		Scanner s=new Scanner(System.in);
  7. 		Set<String>Set=new HashSet<>();
  8. 		int n=s.nextInt();
  9. 		String arr[]=new String[n];
  10. 		for(int i=0;i<n;i++)
  11. 		{
  12. 			arr[i]=s.next();
  13. 		}
  14. 		String str=" ";
  15. 		for(int i=n-1;i>=0;i--)
  16. 		{
  17. 			String str1=arr[i];
  18. 			if(Set.contains(str1))
  19. 			{
  20. 				continue;
  21. 			}
  22. 			else
  23. 			{
  24. 				str=str+str1.substring(str1.length()-2);
  25. 				Set.add(str1);
  26. 			}
  27. 		}
  28. 		System.out.println(str);
  29.  
  30. 	}
  31. }
Success #stdin #stdout 0.2s 58944KB
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https://ideone.com/0mfyCV
language:
Java (HotSpot 12)
created:
1 day ago
visibility:
public

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