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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. 		List<Boolean> deck = new ArrayList<Boolean>();
  13. 		int hits = 9;
  14. 		int size = 45;
  15.  
  16. 		for (int i = 1; i <= size; ++i) {
  17. 			if (i <= hits) {
  18. 				deck.add(true);
  19. 			}
  20. 			else {
  21. 				deck.add(false);
  22. 			}
  23. 		}
  24.  
  25. 		int iterations = 1000000;
  26. 		int successes = 0;
  27. 		int failures = 0;
  28.  
  29. 		int draws = 5;
  30.  
  31. 		for (int i = 1; i <= iterations; ++i) {
  32. 			if (findHitWithMull(deck, draws)) {
  33. 				successes++;
  34. 			}
  35. 			else {
  36. 				failures++;
  37. 			}
  38. 		}
  39. 		System.out.println("SUCCEEDS " + ((float)successes/(float)iterations)*100.0 + "%");
  40. 	}
  41.  
  42. 	private static boolean findHitWithMull(List<Boolean> deck, int draws) {
  43. 		return findHit(deck, draws) ? true : findHit(deck, draws);
  44. 	}
  45.  
  46. 	private static boolean findHit(List<Boolean> deck, int draws) {
  47. 		Collections.shuffle(deck);
  48. 		for (int i = 0; i < draws; ++i) {
  49. 			if (deck.get(i)) {
  50. 				return true;
  51. 			}
  52. 		}
  53. 		return false;
  54. 	}
  55. }
Success #stdin #stdout 0.87s 4386816KB
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SUCCEEDS 90.4753029346466%
https://ideone.com/2903LU
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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