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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 Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		int[][] numbers = { { 1,  2,  13,  4  }, 
  13.                                             { 5,  6,  7,   8  }, 
  14.                                             { 9,  10, 11,  12 } };
  15.  
  16.                         int numOfArrays = numbers.length;
  17.  
  18.                         int lengthOfArrays = 0;
  19.                         for (int i = 0; i < numOfArrays; i++) {
  20.                         	if (numbers[0].length > lengthOfArrays)
  21.                         		lengthOfArrays = numbers[0].length;
  22.                         }
  23.  
  24.                         int[] minOfCols = new int[lengthOfArrays];
  25.  
  26.                         for (int i = 0; i < lengthOfArrays; i++) {
  27.                         	Integer minNumber = null;
  28.                         	for (int x = 0; x < numOfArrays; x++) {
  29.                         		if (minNumber == null || numbers[x][i] < minNumber)
  30.                         			minNumber = numbers[x][i];
  31.                         	}
  32.                         	minOfCols[i] = minNumber;
  33.                         }
  34.  
  35.  
  36.                         for (int lol : minOfCols) {
  37.                         	System.out.println("LOL: " + lol);
  38.                         }
  39. 	}
  40. }
Success #stdin #stdout 0.05s 4386816KB
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stdin
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Standard input is empty
stdout
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LOL: 1
LOL: 2
LOL: 7
LOL: 4
https://ideone.com/tbnAD5
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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