Re: inject problem

Thanks but I did not solve my problem.

Here is the whole script :

require File.expand_path(File.dirname(__FILE__) + '/edgecase')

# Greed is a dice game where you roll up to five dice to accumulate
# points.  The following "score" function will be used to calculate the
# score of a single roll of the dice.
#
# A greed roll is scored as follows:
#
# * A set of three ones is 1000 points
#
# * A set of three numbers (other than ones) is worth 100 times the
#   number. (e.g. three fives is 500 points).
#
# * A one (that is not part of a set of three) is worth 100 points.
#
# * A five (that is not part of a set of three) is worth 50 points.
#
# * Everything else is worth 0 points.
#
#
# Examples:
#
# score([1=2C1=2C1=2C5=2C1]) =3D> 1150 points
# score([2=2C3=2C4=2C6=2C2]) =3D> 0 points
# score([3=2C4=2C5=2C3=2C3]) =3D> 350 points
# score([1=2C5=2C1=2C2=2C4]) =3D> 250 points
#
# More scoring examples are given in the tests below:
#
# Your goal is to write the score method.

def score(dice)
  total =3D 0=20
  h =3D Hash.new(0)
  dice.each {|el| h[el] +=3D 1}=20

 dice.each {|number=2C count|
   if number =3D=3D 1 and count =3D=3D 6 then return 2000 end
   if number !=3D 1 and count =3D=3D 3 then total =3D total + 100 * count e=
nd
   if number !=3D 1 and count =3D=3D 6 then return 600 end
   if number =3D=3D 1 and (count > 3) then total =3D total + ( 100 + ( coun=
t - 3)) end
   if number =3D=3D 1 and (count < 3) then total =3D total   + 100 * count =
end
   if number =3D=3D 5 and (count > 3) then total =3D total + ( 50 * (count =
-3)) end
   if number =3D=3D 5 and (count < 3) then total =3D total +  50 * count en=
d
    }

end
 =20

class AboutScoringProject < EdgeCase::Koan
  def test_score_of_an_empty_list_is_zero
    assert_equal 0=2C score([])
  end

  def test_score_of_a_single_roll_of_5_is_50
    assert_equal 50=2C score([5])
  end

  def test_score_of_a_single_roll_of_1_is_100
    assert_equal 100=2C score([1])
  end

  def test_score_of_multiple_1s_and_5s_is_the_sum_of_individual_scores
    assert_equal 300=2C score([1=2C5=2C5=2C1])
  end

  def test_score_of_single_2s_3s_4s_and_6s_are_zero
    assert_equal 0=2C score([2=2C3=2C4=2C6])
  end

  def test_score_of_a_triple_1_is_1000
    assert_equal 1000=2C score([1=2C1=2C1])
  end

  def test_score_of_other_triples_is_100x
    assert_equal 200=2C score([2=2C2=2C2])
    assert_equal 300=2C score([3=2C3=2C3])
    assert_equal 400=2C score([4=2C4=2C4])
    assert_equal 500=2C score([5=2C5=2C5])
    assert_equal 600=2C score([6=2C6=2C6])
  end

  def test_score_of_mixed_is_sum
    assert_equal 250=2C score([2=2C5=2C2=2C2=2C3])
    assert_equal 550=2C score([5=2C5=2C5=2C5])
  end

end

And I now get this error: <0> expected but was  <[]>.
When I make that one a comment :

def test_score_of_an_empty_list_is_zero

    #assert_equal 0=2C score([])

  end

Then I see this error appear :=20

The answers you seek...
  undefined method `>' for nil:NilClass

Please meditate on the following code:
  ./about_scoring_project.rb:43:in `score'
  ./about_scoring_project.rb:37:in `each'
  ./about_scoring_project.rb:37:in `score'
  ./about_scoring_project.rb:56:in `test_score_of_a_single_roll_of_5_is_50'
  /home/roelof/koans/edgecase.rb:398:in `send'
  /home/roelof/koans/edgecase.rb:398:in `meditate'
  /home/roelof/koans/edgecase.rb:470:in `walk'
  /home/roelof/koans/edgecase.rb:481:in `each_step'
  /home/roelof/koans/edgecase.rb:479:in `each'
  /home/roelof/koans/edgecase.rb:479:in `each_step'
  path_to_enlightenment.rb:38:in `each_with_index'
  /home/roelof/koans/edgecase.rb:478:in `each'
  /home/roelof/koans/edgecase.rb:478:in `each_with_index'
  /home/roelof/koans/edgecase.rb:478:in `each_step'
  /home/roelof/koans/edgecase.rb:476:in `catch'
  /home/roelof/koans/edgecase.rb:476:in `each_step'
  /home/roelof/koans/edgecase.rb:469:in `walk'
  /home/roelof/koans/edgecase.rb:491
  path_to_enlightenment.rb:38


So something is not well here ?

Roelof



> Date: Wed=2C 26 Sep 2012 03:26:55 +0900
> From: [e-mail]
> Subject: Re: inject problem
> To: [e-mail]
>=20
> Roelof Wobben wrote in post #1077503:
> >   h =3D Hash.new(0)
> >   dice.each {|el| dice[el] +=3D 1}
> > [...]
> > But now I'm getting this error : undefined method `+' for nil:NilClass
>=20
> You want h[el] +=3D 1=2C not dice[el] +=3D 1. See the original code by Je=
s=FAs.
>=20
> --=20
> Posted via http://www.ruby-forum.com/.
 		 	   		  =