Created
January 2, 2020 01:00
-
-
Save vznvzn/9f6212d70368aeb53c59e4410b2f7de3 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def f2(n) | |
return n.odd? ? (n * 3 + 1) / 2 : n / 2 | |
end | |
def seq(n) | |
n1 = n | |
l = [n1] | |
while (n != 1) | |
n = f2(n) | |
l << n | |
end | |
return l | |
end | |
def flip(s, n) | |
s = s.dup | |
s[n, 1] = (s[n, 1].to_i ^ 1).to_s | |
return s | |
end | |
def delete(s, n) | |
s = s.dup | |
s[n, 1] = '' | |
return s | |
end | |
def insert(s, n) | |
s0 = s.dup | |
s0[n, 0] = '0' | |
s1 = s.dup | |
s1[n, 0] = '1' | |
return s0, s1 | |
end | |
def edit1(s) | |
l = [] | |
s.length.times \ | |
{ | |
|n| | |
l << flip(s, n) | |
l << delete(s, n) | |
} | |
(s.length + 1).times \ | |
{ | |
|n| | |
l += insert(s, n) | |
} | |
return l.select { |x| x[0, 1] != '0' } | |
end | |
def sum(l) | |
return l.inject { |t, x| t + x } | |
end | |
def count(ns) | |
l1 = seq(ns.to_i(2)) | |
cg = l1.index { |x| x < l1[0] } | |
cg = l1.size if (cg.nil?) | |
cm = (0...cg).max_by { |x| l1[x] } | |
t = sum(l1.map { |x| x.to_s(2).length }) | |
return {'ns' => ns, 'cm' => cm, 'cg' => cg, 'c' => l1.size, 't' => t, 'nw' => ns.length} | |
end | |
def outa(f1, l, a = {}, t = '') | |
f = f1.nil? ? File.open('gnuplot.cmd', 'w') : f1 | |
f.puts('$dat << eof') | |
k = l[0].keys | |
f.puts(k.join("\t")) | |
l.each { |x| f.puts(x.values.join("\t")) } | |
f.puts('eof') | |
f.puts("set colors classic; set key top left opaque; set title '#{t}'; ") | |
f.puts("set ytics nomirror; set y2tics;") | |
f.puts("plot \\") | |
k.each \ | |
{ | |
|x| | |
next if (a.member?(x) && a[x].nil?) | |
f.puts("'$dat' using (column('#{x}')) with line #{a.fetch(x, '')} lw 2 title '#{x}',\\") | |
} | |
f.puts | |
# f.puts("reset; pause -1;") | |
f.close if (f1.nil?) | |
end | |
l1 = [count('1')] | |
seen = {'' => nil, '0' => nil, '1' => nil} | |
l = [] | |
k = 't' | |
5000.times \ | |
{ | |
|t| | |
$stderr.puts(t) if (t % 100 == 0) | |
l2 = l1.map { |x| x[k] } | |
i = (0...l1.size).min_by { |x| l2[x] } | |
x = l1.delete_at(i) | |
l << x | |
edit1(x['ns']).each \ | |
{ | |
|ns| | |
next if (seen.member?(ns)) | |
l1 << count(ns) | |
seen[ns] = nil | |
} | |
} | |
outa(nil, l, {'ns' => nil}) | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment