CDE

Task/Executable-library/Ruby/executable-library-2.rb

@@ -0,0 +1,11 @@
+# hsfreq.rb
+require 'hailstone'
+
+h = Hash.new(0)
+last = 99_999
+(1..last).each {|n| h[Hailstone.hailstone(n).length] += 1}
+length, count = h.max_by {|length, count| count}
+
+puts "Given the hailstone sequences from 1 to #{last},"
+puts "the most common sequence length is #{length},"
+puts "with #{count} such sequences."