saadbinakhlaq

=begin
Write a function, largest_component, that takes in the adjacency list of an undirected graph.
The function should return the size of the largest connected component in the graph.
     5
     | \
     |  \
 1-- 0 -- 8

 4 -- 2
 \   /

saadbinakhlaq

=begin
Write a function, connected_components_count, that takes in the adjacency list of an undirected graph.
The function should return the number of connected components within the graph.
=end
#         1 - 2
#           4
#           |
#      5 -- 6 -- 8
#           |
#           7

saadbinakhlaq

=begin
Write a function, undirected_path, that takes in a list of edges for an undirected graph and two nodes (node_A, node_B). 
The function should return a boolean indicating whether or not there exists a path between node_A and node_B.
=end

edges = [
  ['i', 'j'],
  ['k', 'i'],
  ['m', 'k'],
  ['k', 'l'],

saadbinakhlaq

=begin
Write a function, has_path, that takes in a dictionary representing the adjacency list of a directed acyclic graph and two nodes (src, dst). 
The function should return a boolean indicating whether or not there exists a directed path between the source and destination nodes.
=end

graph = {
  'f' => ['g', 'i'],
  'g' => ['h'],
  'h' => [],
  'i' => ['g', 'k'],

saadbinakhlaq

Search engines specialized on apartments:

• http://immobilien.trovit.de/

• http://www.kalaydo.de/immobilien/

• http://kleinanzeigen.ebay.de/anzeigen/s-immobilien/c195

Generic portals:

saadbinakhlaq

(https://[^*,]+)

saadbinakhlaq

module BSON
  class ObjectId
    def to_json(*args)
      to_s.to_json
    end

    def as_json(*args)
      to_s.as_json
    end
  end

saadbinakhlaq

require 'spec_helper'

describe KV do
  describe '#set' do
    it 'assigns a value to the instance variable hash' do
      kv = KV.new
      kv.set('foo', 'bar')
      expect(kv.hash['foo'][Time.now.to_i]).to eq('bar')
    end
  end

saadbinakhlaq

Dir[File.dirname(__FILE__) + '/application/*.rb'].each { |file| require file }

class KV
  attr_reader :hash
  def initialize
    @hash = Hash.new { |h, k| h[k] = {} }
  end

  def set(key, value)
    @hash[key][Time.now.to_i] = value

saadbinakhlaq

class Attachment < ActiveRecord::Base
  mount_uploader :attachment, AttachmentUploader

  # Associations

  belongs_to :attached_item, polymorphic: true

  # Validations

  validates_presence_of :attachment