def f1(n)
	n = (n * 3 + 1) / 2 while (n.odd?)
	n /= 2 while (n.even?)
	return n
end

def f2(n)
	return n.odd? ? (n * 3 + 1) / 2 : n / 2

end

def f3(n)
	return n.odd? ? (n * 3 + 1) : n / 2

end


def d(s)
        c = s.split('').select { |x| x == '1' }.size
	d = c.to_f / s.length
        return d

end

def read(fn)
	l = (f = File.open(fn)).readlines.map { |x| Kernel.eval(x) }
	f.close
	$stderr.puts("#{fn} #{l.size}")
	return l
end

def dist_j(r = nil)
	l = $db.nil? ? ($db = read($fndb)) : $db

	z1 = rand(l.size)
	ns = l[z1]['n'].to_s(2)

	r = rand(ns.length) if (r.nil?)

	ns[r, 1] = (ns[r, 1].to_i ^ 1).to_s
	n = ns.to_i(2)
	return n

end

def disordered(n)


	n1 = n
	l = [n]
	l1 = []
	i = nil
	while (n >= n1 && n != 1)
		n = $f.call(n)
		l << n

		next if (!i.nil?)

		l1 << d(n.to_s(2)) - 0.5
		l1.shift if (l1.size == 3)
		i = l.size - 1 if (i.nil? && l1.size == 2 && l1[0] * l1[1] < 0)
	end
	cm = (0...l.size).max_by { |x| l[x] }
	return if (i.nil?)

	return {'n2' => l[i], 'i' => i}
end

def advc(n)
	n1 = n

	l = [n]
	cg = nil
	while (n != 1)

		n = $f.call(n)
		l << n

		cg = l.size - 1 if (cg.nil? && n < n1)
	end
	cg = l.size - 1 if (cg.nil?)

	cma = (0..cg).max_by { |x| l[x] }

	return l[0..cma]
end

def n1()

	loop \
	{
		n = dist_j()
		x = disordered(n)
		next if (x.nil?)
		n = x['n2']
		n /= 2 while (n.even?)
		return n
	}

end

def run()

	$fndb = 'mix19/mixdb.txt'

	f = File.open('gnuplot.cmd', 'w')


	f.puts('set y2tics; set ytics nomirror; unset key; set colors classic; plot \\')

	f.puts("'-' using 1:2:3 with line lw 6 linecolor palette axes x2y2,\\")
	1.times { |x| f.puts("'-' using 1:2:3 title 'fn#{x + 1}' with line lw 1 linecolor palette,\\") }
	f.puts

	tf = 1

	$f = [lambda { |x| f1(x) }, lambda { |x| f2(x) }, lambda { |x| f3(x) }][tf]

	l = (1..1000).map { advc(n1()) }.uniq
	$stderr.puts({'ls' => l.size}.inspect)

	l.sort_by! { |x| x.size }

	n = 200
	r = -n..-1

	l[r].reverse.each_with_index { |x, i| f.puts([i, x.size, n - i].join("\t")) }
	f.puts('eof')

	l[r].reverse.each_with_index \
	{
		|l1, c|

		w0 =  l1[0].to_s(2).length

		l1.each_with_index \
		{
			|x, j|
			wr2 = x.to_s(2).length.to_f / w0
			wr2b = Math.log(x) / Math.log(l1[0])
			f.puts([j.to_f, wr2b, n - c].join("\t"))
		}
		f.puts
	}
	f.puts('eof')

	f.close

end

run()