Created
August 30, 2019 01:27
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def f2(n) | |
return n.odd? ? (n * 3 + 1) / 2 : n / 2 | |
end | |
def d(s) | |
c = s.split('').select { |x| x == '1' }.size | |
d = c.to_f / s.length | |
return d | |
end | |
def keys(ks2) | |
ksmn = ks2.select { |x| x.end_with?('-') } | |
ksmx = ks2 - ksmn | |
ksmn.each { |x| x.replace(x.chop) } | |
x = {'ks' => ksmn + ksmx, 'ksmx' => ksmx, 'ksmn' => ksmn} | |
$stderr.puts(x.inspect) | |
return x | |
end | |
def order(l, ks2) | |
l2 = (0...l.size).map { {} } | |
$k = keys(ks2) if ($k.nil?) | |
$k['ks'].each \ | |
{ | |
|k| | |
l1 = (0...l.size).map { |x| {k => l[x][k], 'i' => x} } | |
s = $k['ksmx'].member?(k) ? -1 : 1 | |
l1.sort_by! { |x| s * x[k] } | |
(0...l1.size).each { |x| l2[l1[x]['i']][k] = x } | |
} | |
l2.each { |x| x['z'] = x.values.inject(0) { |t, x| t + x } } | |
return (0...l2.size).sort_by { |x| l2[x]['z'] } | |
end | |
def out(a, a2 = {}, t = nil, ct = "(column('t')):") | |
fn = $fn.nil? ? 'out.txt' : $fn | |
k = a.keys | |
if ($f1.nil?) then | |
$f1 = File.open(fn, 'w') | |
$f1.puts(k.join("\t")) | |
f2 = File.open('gnuplot.cmd', 'w') | |
st = t.nil? ? 'unset title; ' : "set title \"#{t}\"; " | |
f2.puts("set ytics nomirror; set y2tics; set colors classic; set key bottom right box opaque; #{st}; plot \\") | |
(a.keys - ['t']).each \ | |
{ | |
|x| | |
next if (a2.member?(x) && a2[x].nil?) | |
m = a2.fetch(x, '') | |
m += ' with line' if (!m.include?('with')) | |
f2.puts("'#{fn}' using #{ct}(column('#{x}')) title '#{x}' #{m}, \\") | |
} | |
f2.puts | |
f2.close | |
end | |
$f1.puts(a.values_at(*k).join("\t")) | |
$f1.flush | |
end | |
def remove(a, ks) | |
a = a.dup | |
ks.each { |x| a.delete(x) } | |
return a | |
end | |
def seq(n) | |
n1 = n | |
l = [] | |
begin | |
l << n | |
n = f2(n) | |
end while (n != 1) | |
return l | |
end | |
def widthdiff(x, y) | |
x.to_s(2).length - y.to_s(2).length | |
end | |
def count(ns) | |
nw = ns.length | |
l = seq(ns.to_i(2)) | |
cm1 = (0...l.size).max_by { |x| l[x] } | |
cg = l.index { |x| x < l[0] } | |
cg = l.size - 1 if (cg.nil?) | |
cm = (0..cg).max_by { |x| l[x] } | |
c = l.size | |
n = ns.to_i(2) | |
return { | |
'da' => (d(ns) - 0.5).abs, | |
'nw' => nw, | |
'cm' => cm, | |
'cm1' => cm1, | |
'cg' => cg, | |
'c' => c, | |
'l' => l, | |
'ns' => ns, | |
'n' => n, | |
'w' => widthdiff(l[cm], n) | |
} | |
end | |
def fmt(x) | |
return remove(x, ['l']) | |
end | |
def axes2(x2) | |
return x2.inject({}) { |h, x| h.merge({x => 'axes x1y2' }) } | |
end | |
def add(l, ns, x2) | |
$t = 0 if ($t.nil?) | |
$t += 1 | |
x = count(ns).merge({'t' => $t}) | |
l << x | |
x = fmt(x) | |
out(remove(x, ['ns']), x2) if ($t % $d == 0) | |
$stderr.puts(x.inspect) if ($t % 200 == 0) | |
end | |
def adj(ns) | |
ns1 = ns.dup | |
ns1[0, 1] = '10' | |
ns2 = ns.dup | |
ns2[0, 1] = '11' | |
return ns1, ns2 | |
end | |
def opt(ks, c, x2) | |
$d = c / 2000 | |
add(l = [], '1', x2) | |
(c / 2).times \ | |
{ | |
l1 = order(l, ks) | |
i = l1[rand([l1.size, 50].min)] | |
x = l.delete_at(i) | |
ns1, ns2 = adj(x['ns']) | |
add(l, ns1, x2) | |
add(l, ns2, x2) | |
} | |
return l[order(l, ks)[0]] | |
end | |
def dp(x) | |
d(x.to_s(2)) >= 0.5 | |
end | |
def sum(l) | |
return l.inject { |t, x| t + x } | |
end | |
def runavg(l, k, c) | |
l1 = l.map { |x| x[k] } | |
t = sum(l1[0...c]) | |
l2 = (['-'] * (c - 1)) + [t.to_f / c] | |
while (l1.size > c) | |
t -= l1.shift | |
t += l1[c - 1] | |
l2 << (t.to_f / c) | |
end | |
ka = "#{k}a" | |
l.each_with_index { |x, i| x[ka] = l2[i] } | |
end | |
def review(ks) | |
l = (f = File.open('out.dat')).readlines | |
f.close | |
x = Kernel.eval(l[0]) | |
$stderr.puts(fmt(x).to_s) | |
n1 = n = x['n'] | |
l = seq(n) | |
i = 0 | |
yi = yj = 0 | |
zi = zj = 1.0 | |
l1 = [] | |
l.each_with_index \ | |
{ | |
|x, j| | |
dpx, dpn = [dp(x), dp(n)] | |
m = {true => 1, false => 0}[dpx == dpn] | |
i += m | |
yi += {true => 1, false => -1}[dpx] | |
yj += {true => 1, false => -1}[dpn] | |
zi = {true => zi * 3 + 1, false => zi / 2}[dpx] | |
zj = {true => zj * 3 + 1, false => zj / 2}[dpn] | |
a = {'ij' => i.to_f / (j + 1), | |
# 'yi' => yi, | |
# 'yj' => yj, | |
'x' => x.to_s(2).length, | |
# 'zi' => Math.log(zi), | |
# 'zj' => Math.log(zj) | |
'i' => i, | |
'm' => m | |
} | |
l1 << a | |
n *= 3 if (x.odd?) | |
} | |
$fn = 'out2.txt' | |
runavg(l1, 'm', 20) | |
t = remove(fmt(x), ['ns']).to_s | |
t.sub!('"n"', '\\n"n"') | |
t.gsub!('"', '\"') | |
t.sub!('{', '') | |
t.sub!('}', '') | |
l1.each { |a| out(a, axes2(['ij', 'ma']).merge({'m' => nil}), t, '') } | |
exit | |
end | |
ks = ['w', 'da-'] | |
ks = ['cm', 'da-'] | |
x2 = axes2(['da']) | |
x2['n'] = nil | |
x = opt(ks, 5e3.to_i, x2) | |
$stderr.puts("\n" + fmt(x).inspect) | |
f = File.open('out.dat', 'w') | |
f.puts(x.inspect) | |
f.close | |
$f1.close; $f1 = nil | |
review(ks) if (File.exist?('out.txt')) | |
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