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Couples Seated in a Row

By: a guest on Jun 5th, 2011  |  syntax: MatLab  |  size: 1.50 KB  |  hits: 27  |  expires: Never
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  1. clear all
  2.  
  3. freq = 0;
  4. total = 100000;
  5. for i = 1:total
  6.     seating_arrangement = randperm(8);
  7.     couple_count = 0;
  8.     for j = 1:7
  9.         if (seating_arrangement(j+1) == 1 && seating_arrangement(j) == 2)
  10.             couple_count = couple_count + 1;
  11.             continue;
  12.         end
  13.         if (seating_arrangement(j+1) == 2 && seating_arrangement(j) == 1)
  14.             couple_count = couple_count + 1;
  15.             continue;
  16.         end
  17.        
  18.         if (seating_arrangement(j+1) == 3 && seating_arrangement(j) == 4)
  19.             couple_count = couple_count + 1;
  20.             continue;
  21.         end
  22.         if (seating_arrangement(j+1) == 4 && seating_arrangement(j) == 3)
  23.             couple_count = couple_count + 1;
  24.             continue;
  25.         end
  26.         %{
  27.         if (seating_arrangement(j+1) == 5 && seating_arrangement(j) == 6)
  28.             couple_count = couple_count + 1;
  29.             continue;
  30.         end
  31.         if (seating_arrangement(j+1) == 6 && seating_arrangement(j) == 5)
  32.             couple_count = couple_count + 1;
  33.             continue;
  34.         end        
  35.         if (seating_arrangement(j+1) == 7 && seating_arrangement(j) == 8)
  36.             couple_count = couple_count + 1;
  37.             continue;
  38.         end
  39.         if (seating_arrangement(j+1) == 8 && seating_arrangement(j) == 7)
  40.             couple_count = couple_count + 1;
  41.             continue;
  42.         end        
  43.         %}
  44.     end
  45.     if (couple_count >= 2)
  46.         freq = freq + 1;
  47.     end
  48. end
  49. prob = freq / total
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