dan5

class UnoClient
  def initialize(uno)
    @uno = uno
    @cards = []
  end

  def draw
    @cards << @uno.draw
  end

dan5

def score(pins)
  frames = pins.join(',').scan(/(\d+),?(\d+)?/).map{|e| e.map{|i| i.to_i}}
  ss = frames.map{|s1, s2| s1 == 10 ? :strike : (s1 + s2 == 10 ? :spare : nil)}
  sum = frames.size > 10 ? frames.pop[0] : 0
  frames.zip(ss.unshift(nil)).zip(ss.unshift(nil)).map{|e1, e2| [e1[0], [e1[1], e2]]}.each do |score, hist|
    sum += score[0] if hist[0] == :strike and hist[1] == :strike
    case hist[0]
    when :strike
      sum += score[0] + score[1]
    when :spare

dan5

def strike?(pins, idx)
  pins[idx * 2] == 10
end

def spare?(pins, idx)
  pins[idx * 2] + pins[idx * 2 + 1] == 10
end

def score_strike_spare(pins)
  score = 0

dan5

# 1 ---
def score(pins)
  pins.inject(&:+)
end

pins = [1, 4, 2, 8, 5, 0, 10, 0, 0, 4, 5, 5, 2, 0, 6, 1, 10, 0, 10, 5, 5]
p score(pins)

# 2 ---
def strike?(pins, idx)

dan5

main = putStrLn $ concat $ map addln $ map fizzbuzz [1..20]

addln str = concat [str, "\n"]

fizzbuzz a = if (a `mod` 3) == 0 then "fizz"
             else if (a `mod` 5) == 0 then "buzz"
                  else show a

dan5

require 'yaml'

# Retains as a constant
CONFIG = YAML.load_file('config.yml')

# or
# Retains as an instance variable.

class Config
  def initialize(name)