1
2

rows_in_order = [1,2,3,4,5,6,7]
side == :white ? rows_in_order : rows_in_order.reverse

1

rows_in_order = side == :white ? (0..7) : (0..7).to_a.reverse

1
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4

require "set"

pools = {1 => [1,2,3], 2=> [3,4,5], 3=> [5,6,7]}  
...

1
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4

byes, heard = 0, true
while byes < 3 do
  puts "Huh?! Speak up, sonny!" unless heard
...

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4

require "rubygems"
require "facets/enumerable/probability"

...

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3

pools = {1 => [1,2,3], 2=> [3,4,5], 3=> [5,6,7]}
rej = Hash.new {0}
pools.values.flatten.sort.reject! {|elem| rej[elem]++ != 1}

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4

# Ruby 1.8.6
pools = {1 => [1,2,3], 2 => [3,4,5], 3 => [5,6,7]}
values = pools.values.flatten
...

1
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3

length = ARGV.last ? ARGV.last.to_i : 140
chars = %w{< > + - . , [ ] [-] ,[.,] >,[.>,] [->+<] >[-]<[->+<]}
puts Array.new(length) {chars[rand(chars.length)]}.join[0, length]

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4

length = ARGV.last ? ARGV.last.to_i : 140

chars = %w{< > + - . , [ ] [-] ,[.,] >,[.>,] [->+<] >[-]<[->+<]}
...

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# generate_bf.rb
# (copyleft) Matt Gauger 2008
# Randomly generates a brainfuck program
...

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# generate_bf.rb
# (copyleft) Matt Gauger 2008
# Randomly generates a brainfuck program
...

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3

length = 140
program = ""
...

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4

class User
  named_scope :older_than, lambda { |u| { :conditions => ['age > u', u.age] } }
end
...

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3

class MyaccountController < ApplicationController
  before_filter :load_users, :only => [ 'account_details', 'show_email_box', 'show_mobile_box' ]
...

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class MyaccountController < ApplicationController

  before_filter load_users, :only => [ :account_details, :show_email_box, :show_mobile_box ]
...