require 'benchmark'

# Average time using parallel approach 0.014400
# Average time using implemented approach 0.000030

PEG = "Peg".freeze
CAR = "Car".freeze
PEGCAR = "Pegcar".freeze

def mapp
  (1..100).map do |current|
    if current % 5 == 0
      PEG
    elsif current % 7 == 0
      CAR
    elsif current % 35 == 0
      PEGCAR
    else
      current
    end
  end
end

Benchmark.bm do |b|
  b.report { mapp }
end