41ef277f40
There are three twos = 200 and one five = 50 => so this should be 250
Also, here's my score method - I feel like I over complicated this:
# def score(dice)
# #count em up
# results = dice.inject(Hash.new) {|h, die| h[die] = h[die] ? h[die] + 1 : 1; h }
#
# #convert to scores
# score = results.keys.inject(0) do |s,k|
# s += \
# case k
# when 1
# results[k] >= 3 ? 1000 + (results[k]-3)*100 : results[k] * 100
# when 2..4,6
# results[k] >= 3 ? 100*k : 0
# when 5
# results[k] >= 3 ? 500 + (results[k]-3)*50 : results[k] * 50
# else
# 0
# end
# end
# end
75 lines
1.8 KiB
Ruby
75 lines
1.8 KiB
Ruby
require 'edgecase'
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# Greed is a dice game where you roll up to five dice to accumulate
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# points. The following "score" function will be used calculate the
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# score of a single roll of the dice.
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#
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# A greed roll is scored as follows:
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#
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# * A set of three ones is 1000 points
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#
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# * A set of three numbers (other than ones) is worth 100 times the
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# number. (e.g. three fives is 500 points).
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#
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# * A one (that is not part of a set of three) is worth 100 points.
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#
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# * A five (that is not part of a set of three) is worth 50 points.
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#
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# * Everything else is worth 0 points.
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#
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#
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# Examples:
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#
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# score([1,1,1,5,1]) => 1150 points
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# score([2,3,4,6,2]) => 0 points
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# score([3,4,5,3,3]) => 350 points
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# score([1,5,1,2,4]) => 250 points
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#
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# More scoring examples are given in the tests below:
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#
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# Your goal is to write the score method.
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def score(dice)
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# You need to write this method
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end
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class AboutScoringAssignment < EdgeCase::Koan
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def test_score_of_an_empty_list_is_zero
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assert_equal 0, score([])
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end
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def test_score_of_a_single_roll_of_5_is_50
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assert_equal 50, score([5])
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end
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def test_score_of_a_single_roll_of_1_is_100
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assert_equal 100, score([1])
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end
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def test_score_of_mulitple_1s_and_5s_is_the_sum
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assert_equal 300, score([1,5,5,1])
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end
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def test_score_of_single_2s_3s_4s_and_6s_are_zero
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assert_equal 0, score([2,3,4,6])
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end
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def test_score_of_a_triple_1_is_1000
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assert_equal 1000, score([1,1,1])
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end
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def test_score_of_other_triples_is_100x
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assert_equal 200, score([2,2,2])
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assert_equal 300, score([3,3,3])
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assert_equal 400, score([4,4,4])
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assert_equal 500, score([5,5,5])
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assert_equal 600, score([6,6,6])
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end
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def test_score_of_mixed_is_sum
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assert_equal 250, score([2,5,2,2,3])
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assert_equal 550, score([5,5,5,5])
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end
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end
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