takaheraw

class ArrayIterator
  def initialize(array)
    @array = array
    @index = 0
  end

  def has_next?
    @index < @array.length
  end

takaheraw

class Command

  attr_reader :description

  def initialize(description)
    @description = description
  end

  def execute
  end

takaheraw

class AccountProxy
  def initialize(real_account)
    @subject = real_account
  end

  def method_missing(name, *args)
    puts "Delegating #{name} message to subject."
    @subject.send(name, *args)
  end
end

takaheraw

class SimpleWriter
  def initialize(path)
    @file = File.open(path,'w')
  end

  def write_line(line)
    @file.print(line)
    @file.print("\n")
  end

takaheraw

class SimpleLogger
  attr_reader :level

  ERROR = 1
  WARNING = 2
  INFO = 3

  def initialize
    @log = File.open("log.txt", "w")
    @level = WARNING

takaheraw

# coding: utf-8

class Algae
  def initialize(name)
    @name = name
  end

  def grow
    puts "藻 #{@name} は日光浴を浴びて育っています"
  end

takaheraw

# coding: utf-8

class Algae
  def initialize(name)
    @name = name
  end

  def grow
    puts "藻 #{@name} は日光浴を浴びて育っています"
  end

takaheraw

class CPU
end

class TurboCPU < CPU
end

class BasicCPU < CPU
end

class Drive

takaheraw

test

takaheraw

#!/usr/bin/env ruby
# coding: utf-8

total = 500
coins = [1, 5, 10, 50, 100, 500]
size = total/coins.min
ret = 1.upto(size).inject([]) do |r, n|
  comb = coins.repeated_combination(n)
  r + comb.select do |c|
    c.inject(:+).eql?(total)