Created
May 4, 2018 18:29
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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 dense(w, d) | |
w2 = w - 1 | |
a = (0...w2).to_a | |
s = '0' * w2 | |
(1..(d * w - 1)).map { a.delete_at(rand(a.size)) }.each { |x| s[x, 1] = '1' } | |
return ('1' + s) | |
end | |
def d(s) | |
c = s.split('').select { |x| x == '1' }.size | |
d = c.to_f / s.length | |
return d | |
end | |
def mx1(n) | |
ns = n.to_s(2) | |
nl = ns.length | |
l1 = ns.split(/0+/).map { |x| x.length } | |
l0 = [ns.split(/1+/)[1..-1]].compact.flatten.map { |x| x.length } | |
# return l0.max, l1.max | |
return l0.max.to_f / nl, l1.max.to_f / nl | |
end | |
def mx2(n) | |
# return mx1(n)[0].to_i | |
return mx1(n).compact.max | |
end | |
def count(x) | |
n = n1 = x['n'] | |
i = 0 | |
l = [n] | |
while (n >= n1 && n != 1) | |
n = f2(n) | |
l << n | |
end | |
cm = (0...l.size).max_by { |x| l[x] } | |
mx = {'mx' => 0, 'mw' => 0, 'mi' => 0, 'mc' => 0} | |
l[0..cm].each_with_index \ | |
{ | |
|n, i| | |
mx = [mx, {'mx' => mx2(n), 'mw' => i - mx['mi'], 'mi' => i, 'mc' => mx['mc'] + 1}].max_by { |x| [x['mx'], -x['mc']] } | |
} | |
return x.merge({'cm' => cm, 'c' => l.size, 'nl' => x['ns'].length}).merge(mx) | |
end | |
def init1(w, m) | |
l = [] | |
b = 1 | |
while (w > 0) | |
t = [w, m].min | |
r = (t <= 1) ? 1 : rand(t) + 1 | |
l << [b] * r | |
b ^= 1 | |
w -= r | |
end | |
s = l.flatten.join | |
return s | |
end | |
def init2(w, m) | |
return dense(w, m.to_f / w) | |
end | |
def init3(w, m) | |
r = m.to_f / w | |
return '1' + (1...w).map { rand < r ? '0' : '1' }.join | |
end | |
def init(w) | |
l = [] | |
(1..w).each \ | |
{ | |
|w| | |
3.times \ | |
{ | |
|i| | |
m = rand(w) | |
ns = nil | |
case (i) | |
when 0 | |
ns = init1(w, m) | |
when 1 | |
ns = init2(w, m) | |
when 2 | |
ns = init3(w, m) | |
end | |
z = count({'ns' => ns, 'n' => ns.to_i(2)}) | |
redo if (z.nil?) | |
l << z | |
} | |
} | |
h = (0..w).map { [] } | |
l.each { |x| h[x['nl']] << x } | |
return h | |
end | |
def get(h, i) | |
m = h[i].size | |
r = h[i].size / 4 | |
return h[i][rand(r == 0 ? m : r)]['ns'] | |
end | |
def out2(fn, l, l2, s) | |
$fn = {} if ($fn.nil?) | |
if (!$fn.member?(fn)) then | |
$fn[fn] = File.open(fn, 'w') | |
$fn[fn].puts(l[0].keys.join("\t")) | |
f = File.open('gnuplot.cmd', 'w') | |
f.puts("set colors classic; #{s} plot \\") | |
l2.each \ | |
{ | |
|x| | |
f.puts("'#{fn}' using #{x}, \\") | |
} | |
f.puts | |
f.close | |
end | |
f = $fn[fn] | |
l.each { |x| f.puts(x.values.join("\t")) } | |
f.flush | |
end | |
def order(h) | |
return Hash[h.sort_by { |k, v| v }.reverse] | |
end | |
def opt(w, k) | |
h = init(w) | |
n = c = c2 = m = 0 | |
mx2 = nil | |
ops1 = {} | |
ops2 = {} | |
loop \ | |
{ | |
t = rand(h.size - 2) + 2 | |
case (op = ['mut', 'mix', 'cut', 'cut2', 'up'][rand(5)]) | |
when 'mut' | |
ns1 = get(h, t) | |
ns = ns1.dup | |
i = rand(t - 1) + 1 | |
ns[i, 1] = (ns1[i, 1].to_i ^ 1).to_s | |
when 'mix' | |
ns1 = get(h, t) | |
ns2 = get(h, t) | |
ns = '' | |
t.times \ | |
{ | |
|i| | |
ns[i, 1] = [ns1[i, 1], ns2[i, 1]][rand(2)] | |
} | |
when 'cut' | |
ns1 = get(h, t) | |
ns2 = get(h, t) | |
i = rand(t) | |
ns = ns1[0...i] + ns2[i..-1] | |
when 'cut2' | |
ns1 = get(h, t) | |
ns2 = get(h, r = rand(t - 1) + 1) | |
ns = ns1.dup | |
r2 = rand(r - 1) + 1 | |
ns1[-r2..-1] = ns2[-r2..-1] | |
when 'up' | |
r = rand(t - 1) + 1 | |
ns1 = get(h, r) | |
ns = '1' + (0...(t - r - 1)).map { rand(2).to_s }.join + ns1 | |
end | |
z = count({'ns' => ns, 'n' => ns.to_i(2)}) | |
nl = z['nl'] | |
raise if (nl != t) | |
if (h[nl].index { |x| x['n'] == z['n'] }.nil?) then | |
x = z[k] | |
h[nl] << z | |
h[nl].sort_by! { |x| [-x[k], x['d']] } | |
if (h[nl].size > 100) then | |
x2 = h[nl].pop | |
a = {'c2' => 0, 'n2' => 0} | |
if (x2[k] < x) then | |
a['n2'] = n if (n % 20 == 0) | |
c += 1 | |
ops1[op] = ops1.fetch(op, 0) + 1 | |
end | |
mx = h[1..-1].map { |x| x.first[k] } | |
if (mx == mx2) then | |
c2 += 1 | |
break if (c2 > 1e5) | |
else | |
a['c2'] = n | |
c2 = 0 | |
ops2[op] = ops2.fetch(op, 0) + 1 | |
end | |
mx2 = mx | |
if (!a.values.select { |x| x != 0 }.empty?) then | |
out2('out.txt', | |
[a.merge({'n' => n, 'nl' => nl, 'c' => c})], | |
["(column('n')):(column('nl')) pt 7 ps 0.5 title 'nl'", | |
"(column('n')):(column('c')) with line lw 3 axes x1y2", | |
"(column('n2')):(0) pt 5 ps 0.5", | |
"(column('c2')):(1) pt 5 ps 0.5", | |
], "set ytics nomirror; set y2tics; set key center right box opaque;" | |
) | |
m += 1 | |
end | |
end | |
end | |
$stderr.puts([{'n' => n + 1, 'm' => m}, order(ops1), order(ops2)].inspect) if ((n + 1) % 5e4 == 0) | |
n += 1 | |
} | |
return h[1..-1].map { |x| x.first } | |
end | |
def review(fn, k) | |
l = File.open(fn).readlines.map { |x| Kernel.eval(x) } | |
out2('out.txt', l.map { |x| x['mx'] *= 10; x.select { |x, | [k, 'mx', 'mw', 'cm', 'c'].member?(x) } }, | |
["(column('#{k}')) with line axes x1y2", | |
"(column('mx')) with line axes x1y2", | |
"(column('mw')) with line", | |
"(column('cm')) with line", | |
"(column('c')) with line"], 'set key top left;') | |
exit | |
end | |
fn = 'mixdb.txt' | |
k = 'mc' | |
review(fn, k) if (File.exist?(fn)) | |
l = opt(300, k) | |
f = File.open(fn, 'w') | |
l.each { |x| f.puts(x.inspect) } | |
f.close | |
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