server

require 'socket'
require 'trollop'
def server(host, port)
  server = TCPServer.new(host, port)
  loop do
    Thread.start(server.accept) do |session|
      num = session.gets().to_i()
      t = 2
      res = []
      while t <= Math.sqrt(num)
        while num % t == 0
          res += [t]
          num /= t
        end
        t += 1
      end
      if num > 1 then res += [num] end
      session.puts(res.inspect)
    end
  end
end
def client(host, port)
  num = gets().to_i()
  sock = TCPSocket::new(host, port)
  sock.puts(num)
  puts "Result: %s" % sock.gets()
end
p = Trollop::Parser.new do
  opt :server, "Run in server mode"
  opt :port, "Port", :default => 8562
  opt :host, "Host", :type => :string
end
opts = Trollop::with_standard_exception_handling p do
  o = p.parse ARGV
  raise Trollop::HelpNeeded if !o[:server] && o[:host] == nil
  o
end
if opts[:server] then server(opts[:host] ? opts[:host] : "0.0.0.0", opts[:port])
else client(opts[:host], opts[:port]) end