require 'zipper'
require 'benchmark'

MAX = 5000
Benchmark.bm do |x|
  x.report "zipper" do
    original = Zipper.make(*(0..MAX).to_a)
    zippers = (0..MAX).map{|i|
      original.next.set(i)
    }
    zippers
  end
  x.report "array" do
    ary = (0..MAX).to_a
    arys = (0..MAX).map {|i|
      item = ary.dup
      item[0] = i
      item
    }
  end
end