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#簡素版

class UnionFind
  def initialize(size)
    @rank = Array.new(size, 0)
    @parent = Array.new(size, &:itself)
  end
  
  def unite(x, y)
    x = root(x)

obelisk68

require 'gtk2'

module LifeGame
  class Field
    MG = 4
    Small, Large = [70, 50], [85, 60]
    
    def initialize
      @width, @height = Small
      @size = :small

obelisk68

require "ruby2d"
include Ruby2D::DSL

Wait = 18

class Tetromino
  def initialize
    @pat = Array.new(4)
    pats = [["1111"], ["11", "11"], ["011", "110"], ["110", "011"],
            ["100", "111"], ["001", "111"], ["010", "111"]]

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module Sudoku
  Size = 81
  Length = 9
  
  INDEXS = [0, 3, 6, 27, 30, 33, 54, 57, 60]
    .map { |i| [i, i+1, i+2, i+9, i+10, i+ 11, i+18, i+19, i+20] }
  
  class CertainMap
    def initialize(ary)
      @field = ary

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module Sokoban
  Pos = Struct.new(:x, :y) do
    def dirs
      [Pos.new(x + 1, y), Pos.new(x, y - 1),
       Pos.new(x - 1, y), Pos.new(x, y + 1)]
    end
    
    def inspect = "<#{x},#{y}>"
    def over_there(e) = Pos.new(2 * e.x - x, 2 * e.y - y)
    def <=>(a) = [x, y] <=> [a.x, a.y]

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require "curses"

class StarTrek
  class DisplayIO
    Width = Curses.cols
    UpperH = 10
    
    def initialize
      Curses.init_screen
      Curses.noraw

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Node = Struct.new(:key, :value)

class MaxHeap
  def initialize
    @heap = [nil]
    @size = 0
  end
  attr_reader :heap, :size
  
  def insert(key, value)

obelisk68

require 'oekaki'

Oekaki.app width: 500, height: 500 do
  draw { clear(color(0x1694, 0x3447, 0x8d60)) }
  
  t = Oekaki::Turtle.new
  t.color(0xfe5f, 0xaa9a, 0x212a)
  ln = 10
  
  e = Enumerator.new do |y|

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imp = ->(p, q) {!p || q}
eqv = ->(p, q) {!(!p ^ !q)}

def output(say, cond)
  trans = ->(ary) {"[#{ary.map {|f| f ? "T" : "F"}.join(" ")}]"}
  puts [trans.(say), trans.(cond)].join(" ")
end

cond = Array.new(5)
result = (1 << 5) - 1

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class Car
  num = 1
  
  define_method(:initialize) do |wait_time:|
    @num = num
    num += 1
    @wait_time = wait_time
  end
  attr_reader :num, :wait_time