set.rb

require 'set'
require 'benchmark'

Benchmark.bm do |x|
  x.report("uniq") do
    a = []
    10.times do
      1_000.times do |i|
        a << i % 32
        a = a.uniq
      end
    end
  end
  
  x.report("set") do
    a = Set.new
    10.times do
      1_000.times do |i|
        a.add(i % 32)
      end
    end
  end
end