bennacer860

class Indexer
  attr :dictionary

  LETTER_TO_NUMBER = {
                      2 => ['a','b','c'],
                      3 => ['d','f','e'],
                      4 => ['g','h','i'],
                      5 => ['j','k','l'],
                      6 => ['m','n','o'],
                      7 => ['p','q','r','s'],

bennacer860

did not find key in cache, executing block ...
executing : select count(*) from users
::1 - - [31/Mar/2017:23:34:34 -0400] "GET / HTTP/1.1" 200 15 0.0102

{"number_of_users"=>{:value=>{:count=>33}, :expiration_time=>1491017684}}
fetch from cache and will expire in 8
::1 - - [31/Mar/2017:23:34:36 -0400] "GET / HTTP/1.1" 200 15 0.0008

{"number_of_users"=>{:value=>{:count=>33}, :expiration_time=>1491017684}}
fetch from cache and will expire in 6

bennacer860

class Cache
  @redis = {}
  def self.fetch key, expires_in = 30, &block
    puts ""
    puts @redis
    if @redis.key?(key) && (@redis[key][:expiration_time] > Time.now.to_i)
      # fetch and return result
      puts "fetch from cache and will expire in #{@redis[key][:expiration_time] - Time.now.to_i}"
      @redis[key][:value]
    else

bennacer860

$ rackup
[2017-03-31 23:24:49] INFO  WEBrick 1.3.1
[2017-03-31 23:24:49] INFO  ruby 2.3.0 (2015-12-25) [x86_64-darwin15]
[2017-03-31 23:24:49] INFO  WEBrick::HTTPServer#start: pid=51672 port=9292
did not find key in cache, executing block ...
executing : select count(*) from users
::1 - - [31/Mar/2017:23:25:01 -0400] "GET / HTTP/1.1" 200 15 0.0385
fetch from cache
::1 - - [31/Mar/2017:23:25:04 -0400] "GET / HTTP/1.1" 200 15 0.0012
fetch from cache

bennacer860

class Cache
  @redis = {}
  def self.fetch key, &block
    if @redis.key?(key)
      # fetch and return result
      puts "fetch from cache"
      @redis[key]
    else
      if block_given?
        # make the DB query and create a new entry for the request result

bennacer860

class Main < Sinatra::Base
  get '/' do
    # make call to the database
    result = number_of_users
    "Hello World! #{result[:count]}"
  end

  def number_of_users
    Cache.fetch "number_of_users" do
      FakeDatabase.connection "select count(*) from users"

bennacer860

require 'sinatra'

class Main < Sinatra::Base  
  get '/' do  
    # make call to the database
    result = FakeDatabase.connection "select count(*) from users"
    "Hello World! #{result[:count]}"
  end
end

bennacer860

class FakeDatabase
  def self.connection query
    puts "executing : #{query}"
    return {count: 33}
  end
end

bennacer860

require 'pp'
require 'pry-byebug'
class Grid
  attr_accessor :grid

  def initialize 
    @grid = Array.new
    read_input 'input.txt'
    0.upto(99) do 
      tick

bennacer860

require 'pry-byebug'
@wires = {}
def is_integer? n
  return n.to_i.to_s == n
end


def first_pass
  File.readlines('input.txt').each do |line|
    line = line.split("->")