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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 sc=new Scanner(System.in);
  14. 		int n=sc.nextInt();
  15. 		int a[]=new int[n];
  16.  
  17. 		for(int i=0;i<n;i++)
  18. 		a[i]=sc.nextInt();
  19.  
  20. 		Map<Integer,Integer> hash=new HashMap<>();
  21. 		int max=-9999, min=99999,maxele=0,minele=0;
  22. 		for(int ele:a)
  23. 		{
  24. 			hash.put(ele,hash.getOrDefault(ele,0)+1);
  25. 		}
  26.  
  27. 		for(int ele: a)
  28. 		{
  29. 			if(max<=hash.get(ele))
  30. 			{
  31. 				max=hash.get(ele);
  32. 				maxele=ele;
  33.  
  34.  
  35. 			}
  36. 			else if(min>=hash.get(ele))
  37. 			{
  38. 				min=hash.get(ele);
  39. 				minele=ele;
  40. 			}
  41. 		}
  42.  
  43.  
  44. 		System.out.println("the ele with max freq is "+maxele+" with freq= "+max);
  45. 		System.out.println("the ele with min freq is "+minele+" with freq= "+min);
  46. 	}
  47. }
Success #stdin #stdout 0.23s 60908KB
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stdin
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6
1 2 2 9 0 0
stdout
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the ele with max freq is 0 with freq= 2
the ele with min freq is 9 with freq= 1
https://ideone.com/PyvCGf
language:
Java (HotSpot 12)
created:
1 day ago
visibility:
public

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