Toby Osbourn tosbourn

## union-array-ampersand-vs-set.rb
require "set"
require 'benchmark/ips'

X = [5, 5, 1, 1]
Y = [1, 2, 5]

SET_X = Set.new(X)
SET_Y = Set.new(Y)

def fast
	require "set"
	require 'benchmark/ips'

	X = [5, 5, 1, 1]
	Y = [1, 2, 5]

	SET_X = Set.new(X)
	SET_Y = Set.new(Y)

	def fast