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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) {
  11.         int count = countOdd(new Integer [] {5, 7, 3, 9, 0});
  12.         System.out.println(count);
  13.         count = countOdd(new Integer [] {2, 6, 4, 8, 1});
  14.         System.out.println(count);
  15.         count = countOdd(5, 7, 10);
  16.         System.out.println(count);
  17.         count = countOdd(8, 2, 7);
  18.         System.out.println(count);
  19.         count = countOdd(new Integer[][] {{1, 2}, {3, 4, 5}});//extra point only
  20.         System.out.println(count);
  21.         count = countOdd(new Integer[][] {{6, 2}, {3, 4, 0}});//extra point only
  22.         System.out.println(count);
  23.         count = countOdd(new Integer [] {2, 6, 4, 8, 1}, new Integer [] {3, 5, 7, 8, 1});
  24.         System.out.println(count);
  25.     }
  26.  
  27. 	// The var args version. You call this. It then calls the recursive
  28. 	// version.
  29. 	public static <T> int countOdd(T... arguments)
  30. 	{
  31. 	   return countOddRec(arguments);
  32. 	}
  33.  
  34. 	// Recursive version
  35. 	private static <T> int countOddRec(T[] a)
  36. 	{
  37. 	    if (a == null || a.length == 0) return 0;
  38.  
  39. 	    int count=0;
  40.  
  41. 	    // Is it an array of Numbers?
  42. 	    if (a[0] instanceof Number) {
  43. 	        for (T i: a) {
  44. 	            // Simplified the counting code a bit. Any # mod 2 is either 0 or 1
  45. 	            count += ((Number)i).intValue() % 2;
  46. 	        }
  47. 	    }
  48. 	    // Is it an multi-dimensional? Call recursively for each sub-array.
  49. 	    else {
  50. 	        for (T sub : a) {
  51. 	            count += countOddRec((T[])sub);
  52. 	        }
  53. 	    }
  54.  
  55. 	    return count;
  56. 	}
  57. }
Success #stdin #stdout 0.09s 46996KB
comments ()
stdin 
Standard input is empty
stdout 
4
1
2
1
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1
5
https://ideone.com/VJh8Ox
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
public

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