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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class Main
  5. {
  6.     public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		final int L = 3;
  9.  
  10. 		int[][] vectors = {
  11. 			{1, 4, 6},
  12. 			{3, 2, 5},
  13. 			{2, 3, 4},
  14. 			{5, 4, 6},
  15. 			{7, 7, 7},
  16. 			{3, 3, 5},
  17. 			{8, 8, 8},
  18. 		};
  19.  
  20. 		Comparator<int[]> cmp = new Comparator<int[]>() {
  21. 			public int compare(int[] v1, int[] v2) {
  22. 				int cmp0 = Integer.signum(v1[0] - v2[0]);
  23. 				for (int i = 1; i < L; i++) {
  24. 					int cmp1 = Integer.signum(v1[i] - v2[i]);
  25. 					if (cmp1 != 0) {
  26. 						if (cmp1 != cmp0) {
  27. 							return 0;
  28. 						}
  29. 						cmp0 = cmp1;
  30. 					}
  31. 				}
  32. 				return cmp0;
  33. 			}
  34. 		};
  35.  
  36. 		Arrays.sort(vectors, cmp);
  37.  
  38. 		System.out.println("minset:");
  39. 		int i = 0;
  40. 		int[] vPref = vectors[0];
  41. 		while (cmp.compare(vectors[i], vPref) == 0) {
  42. 			for (int x : vectors[i]){
  43. 				System.out.print(x + ", ");
  44. 			}
  45. 			System.out.println();
  46. 			vPref = vectors[i];
  47. 			i++;
  48. 		}
  49. 	}
  50. }
  51.  
Success #stdin #stdout 0.07s 380160KB
comments (?)
stdin 
Standard input is empty
stdout 
minset:
1, 4, 6, 
3, 2, 5, 
2, 3, 4,
https://ideone.com/PtDslH
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
secret

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