mikhailov

class QU
  attr_reader :array

  def initialize(array)
    @array = array
  end

  def union(p,q)
    return if p == q
    @array[root(p)] = root(q)

mikhailov

server {
    listen       80;
    server_name  *.domain.com;
    rewrite ^(.*) https://$host$1 permanent;
}

mikhailov

namespace :log do

  desc "A pinch of tail"
  task :tailf, :roles => :app do
    run "tail -n 10000 -f #{shared_path}/log/#{rails_env}.log" do |channel, stream, data|
      puts "#{data}"
      break if stream == :err
    end
  end

mikhailov

class ValidParentheses
  SYMBOLS = {"(" => ")", "[" => "]", "{" => "}"}

  def initialize(array)
    @array = array.split("")
    @stack = []
  end

  def process
    @array.each do |i|

mikhailov

class DecimalMark

  def initialize(data)
    @array     = data.split("")
    @new_array = []
  end

  def process
    i = 0
    loop do

mikhailov

class FizzBuzz
  def initialize(array)
    @array     = array
    @new_array = []
  end

  def process
    @array.each do |e|
      value = \
      if e % 3 == 0 && e % 5 == 0

mikhailov

class ReverseSentence

  def initialize(string)
    @array, @array_reversed = string.split(" "), []
  end

  def process    
    @array_reversed << @array.pop while @array.any?
    @array_reversed.join(" ")
  end

mikhailov

class ActiveRecord::ConnectionAdapters::Mysql2Adapter

private
  alias_method :configure_connection_without_strict_mode, :configure_connection

  def configure_connection
    configure_connection_without_strict_mode
    strict_mode = "SQL_MODE='STRICT_ALL_TABLES'"
    execute("SET #{strict_mode}", :skip_logging)
  end

mikhailov

#!/bin/sh

ip route |grep default # default via 10.235.9.1 dev eth0
ip route change default via `ip route| awk '/^def/{print $3}'` dev eth0 initcwnd 16
ip route |grep default # default via 10.235.9.1 dev eth0 initcwnd 16

sysctl -w net.ipv4.tcp_slow_start_after_idle=0
sysctl -a |grep net.ipv4.tcp_slow_start_after_idle

mikhailov

class Object

  class UnitTestError < StandardError; end

  def describe(description, &block)
    if Object.class_eval(&block)
      print '.'
    else
      puts 'FAIL ' + description
      raise UnitTestError