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  1. import java.io.*;
  2. import java.util.*;
  3.  
  4. class Ideone {
  5. 	public static void rotate(int[] arr, int by) {
  6. 		int n = arr.length;
  7. 		int i = 0;
  8. 		int j = 0;
  9. 		while (i < n) {
  10. 			int k = j;
  11. 			int value = arr[k];
  12. 			do {
  13. 				k = (k + by) % n;
  14. 				int tmp = arr[k];
  15. 				arr[k] = value;
  16. 				value = tmp;
  17. 				i++;
  18. 			} while (k != j);
  19. 			j++;
  20. 		}
  21. 	}
  22.  
  23. 	public static void main (String[] args) throws Exception {
  24. 		List<Integer> list = new ArrayList<Integer>();
  25. 		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
  26. 		String line;
  27. 		while ((line = reader.readLine()) != null) {
  28. 			list.add(Integer.parseInt(line));
  29. 		}
  30. 		int[] arr = new int[list.size()];
  31. 		for (int i = 0; i < list.size(); i++) {
  32. 			arr[i] = list.get(i);
  33. 		}
  34. 		rotate(arr, 3);
  35. 		for (int item : arr) {
  36. 			System.out.println(item);
  37. 		}
  38. 	}
  39. }
Success #stdin #stdout 0.08s 380160KB
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https://ideone.com/V3MOe8
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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