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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 KonkursPseudoMatematyczny {
  9.     public static void main(String[] args) {
  10.         Scanner in = new Scanner(System.in);
  11.  
  12.         int cases = Integer.parseInt(in.next());
  13.         for (int i = 0; i < cases; i++) {
  14.  
  15.             int amount = Integer.parseInt(in.next());
  16.             List<Integer> list = new ArrayList<>();
  17.  
  18.             for (int j = 0; j < amount; j++) {
  19.                 list.add(Integer.parseInt(in.next()));
  20.  
  21.                 Collections.sort(list, new comparator());
  22.                 for (Iterator<Integer> iterator = list.iterator(); iterator.hasNext(); ) {
  23.                     Integer num = iterator.next();
  24.                 }
  25.             }
  26.  
  27. //            for (int z = 0; z < list.size(); z++) {
  28. //                System.out.print(list.get(z) + " ");
  29. //            }
  30. //            System.out.println();
  31.  
  32.  
  33.             System.out.print(list.get(0) + " ");
  34.             int num = list.get(0);
  35.             list.remove(0);
  36.             while (list.contains(num)) {
  37.                 System.out.print(num + " ");
  38.                 list.remove(0);
  39.             }
  40.  
  41.             if (!list.isEmpty()) {
  42.                 num = list.get(list.size() - 1);
  43.                 while (list.contains(num)) {
  44.                     System.out.print(num + " ");
  45.                     list.remove(list.get(list.size() - 1));
  46.                 }
  47.  
  48.                 for (int z = list.size() - 1; z >= 0; z--) {
  49.                     System.out.print(list.get(z) + " ");
  50.                 }
  51.             }
  52.         }
  53.     }
  54. }
  55.  
  56. class comparator implements java.util.Comparator<Integer> {
  57.  
  58.     @Override
  59.     public int compare(Integer o1, Integer o2) {
  60.         if (o1 > o2) {
  61.             return -1;
  62.         } else if (o1 < o2) {
  63.             return 1;
  64.         }
  65.         return 0;
  66.     }
  67. }
  68.  
Success #stdin #stdout 0.06s 4386816KB
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https://ideone.com/3zQwvI
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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