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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {	
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		 Scanner scanner = new Scanner(System.in);
  10.  
  11.         int n = scanner.nextInt();
  12.         int[] arr = new int[n];
  13.  
  14.         for (int i = 0; i < n; i++) {
  15.             arr[i] = scanner.nextInt();
  16.         }
  17.  
  18.         for (int i = 0; i < n - 1; i++) {
  19. 			for (int j = 0; j < n - i - 1; j++) {
  20. 				if (arr[j] > arr[j + 1]) {
  21. 					int temp = arr[j];
  22. 					arr[j] = arr[j + 1];
  23. 					arr[j + 1] = temp;
  24. 				}
  25. 			}
  26. 		}
  27.  
  28.  
  29.         int[] res = new int[n];
  30.         int s = 0;         
  31.         int e = n - 1;       
  32.  
  33.         for (int i = 0; i < n; i++) {
  34.             if (i % 2 == 0) {
  35.                 res[i] = arr[s++];
  36.             } else {
  37.                 res[i] = arr[e--];
  38.             }
  39.         }
  40.  
  41.         System.out.println(Arrays.toString(res));
  42. 	}
  43. }
  44.  
Success #stdin #stdout 0.12s 54624KB
comments (?)
stdin
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10
80 50 30 40 90 10 70 60 20 100
stdout
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[10, 100, 20, 90, 30, 80, 40, 70, 50, 60]
https://ideone.com/1A3ifc
language:
Java (HotSpot 12)
created:
9 days ago
visibility:
public

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