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  1. import java.util.Arrays;
  2.  
  3. class Ideone {
  4. 	private static final int MIN_COUNT = 3;
  5. 	public static void main(String[] args) {
  6. 		int[][] data = { { 74, 85, 123 },
  7. 		                 { 73, 84, 122 },
  8. 		                 { 72, 83, 121 },
  9. 		                 { 70, 81, 119 },
  10. 		                 { 69, 80, 118 },
  11. 		                 { 76, 87, 125 },
  12. 		                 { 77, 88, 126 },
  13. 		                 { 78, 89, 127 } };
  14. 		// Initialize min collectors
  15. 		Min[] min = new Min[data[0].length];
  16. 		for (int col = 0; col < min.length; col++)
  17. 			min[col] = new Min(MIN_COUNT);
  18. 		// Collect data
  19. 		for (int row = 0; row < data.length; row++)
  20. 			for (int col = 0; col < min.length; col++)
  21. 				min[col].add(data[row][col]);
  22. 		// Print result
  23. 		for (int i = 0; i < MIN_COUNT; i++) {
  24. 			for (int col = 0; col < min.length; col++)
  25. 				System.out.printf("min%d = %-5d ", i + 1, min[col].get(i));
  26. 			System.out.println();
  27. 		}
  28. 	}
  29. }
  30. class Min {
  31. 	private int[] min;
  32. 	public Min(int count) {
  33. 		this.min = new int[count];
  34. 		Arrays.fill(this.min, Integer.MAX_VALUE);
  35. 	}
  36. 	public void add(int value) {
  37. 		int idx = Arrays.binarySearch(this.min, value);
  38. 		if (idx != -this.min.length - 1) { // not insert at end
  39. 			if (idx < 0)
  40. 				idx = -idx - 1;
  41. 			System.arraycopy(this.min, idx, this.min, idx + 1, this.min.length - idx - 1);
  42. 			this.min[idx] = value;
  43. 		}
  44. 	}
  45. 	public int get(int index) {
  46. 		return this.min[index];
  47. 	}
  48. }
Success #stdin #stdout 0.1s 320576KB
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min1 = 69    min1 = 80    min1 = 118   
min2 = 70    min2 = 81    min2 = 119   
min3 = 72    min3 = 83    min3 = 121
https://ideone.com/v0CCri
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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