acapilleri

def get_perm str
  return [str] if str.size == 1
  perms = []

  first_char = str.slice!(0)
  words = get_perm(str)
  words.each do |word|
    perms += insert_each(first_char, word)
  end
  perms

acapilleri

def mergesort(ary)
  return ary if ary.count <= 1
  size = ary.count
  m = size / 2
  merge mergesort(ary[0..m-1]), mergesort(ary[m..size-1])
end

def merge(a, b)
  return a if b.count <= 0
  return b if a.count <= 0

acapilleri

def quicksort(ary)
  size = ary.count
  return ary if size <= 1
  i, j = 0, size - 1
  pivot = ary[(size / 2)]
  while i < j
    i += 1 while ary[i] < pivot
    j -= 1 while ary[j] > pivot
    ary[i], ary[j] = ary[j], ary[i]

acapilleri

Server:

  iMac
  Mac10,1
  Intel Core 2 Duo
  3,06 GHz
 
  Cache L2:	3 MB
  RAM:	8 GB
  bus:	1,07 GHz

acapilleri

def show
  @pet = Pet.find(params[:id])
  tempfile = Tempfile.new(@pet.id.to_s)
  render_file = Tempfile.new(@pet.id.to_s + '.html')
  buffer = render  'show.pdf.erb', layout: false
  render_file.write(buffer.first)

  html = "#{render_file.path}.html"
  system "mv #{render_file.path} #{html} && wkhtmltopdf #{html} #{tempfile.path}"
  send_file tempfile.path, type: 'application/pdf'