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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8.  
  9. 		int n = 0;
  10. 		int [] v=new int[] {42,44,40,42,44,48};
  11. int res = 0;
  12. for (int i = 0; i < v.length; i++){
  13.     if (v[i] > n){
  14.         n = v[i];
  15.     }
  16. }
  17. int[] a = new int [n];
  18. for (int i = 0; i < v.length; i++){
  19.     a[v[i]-1]++;
  20. }
  21. for (int i = 0; i < a.length; i++){
  22.     if (a[i] == 2){
  23.         res++;
  24.     }
  25. }
  26. System.out.print(res);
  27. 	}
  28. }
Success #stdin #stdout 0.06s 2841600KB
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Standard input is empty
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https://ideone.com/2b86Qr
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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