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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		Scanner in=new Scanner(System.in);
  14. 		HashMap<Character,Integer> hm=new HashMap<>();
  15. 		String str=in.nextLine();
  16. 		for(int i=0;i<str.length();i++)
  17. 		{
  18. 			char ch=str.charAt(i);
  19. 			if(hm.containsKey(ch))
  20. 			{
  21. 				hm.put(ch,hm.get(ch)+1);
  22. 			}
  23. 			else
  24. 			{
  25. 				hm.put(ch,1);
  26. 			}
  27. 		}
  28. 		for(Map.Entry<Character,Integer> e:hm.entrySet())
  29. 		{
  30. 			if(e.getValue()==1)
  31. 			{
  32. 				System.out.print(e.getKey());
  33. 				break;
  34. 			}
  35. 		}
  36. 	}
  37. }
Success #stdin #stdout 0.1s 35496KB
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https://ideone.com/4cMTeI
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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