1 nums = (1..100)

     2 

     3 #iterate through the nums 1-100

     4 nums.each do |i|

     5 

     6 	start_time = Time.now

     7 	string = "a" * i

     8 

     9 	#create a new regular expression based on current value of i

    10 	re = Regexp.new(/((a?){#{i}})(a{#{i}})/)

    11 

    12 	if re.match(string)

    13 		puts "matched string  a * #{i} with regex #{re}"

    14 	else

    15 		puts "unmatched string a * #{i} with regex #{re}"

    16 	end

    17 	

    18 	puts "in = #{(Time.now - start_time) * 1000} milliseconds"

    19 end