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January 20, 2017 01:41
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def f2(n) | |
n = (n * 3 + 1) / 2 while (n % 2 == 1) | |
n /= 2 while (n % 2 == 0) | |
return n | |
end | |
def adv(x) | |
n1 = n = x['n'] | |
l = [n] | |
while (n >= n1 && n != 1) | |
n = f2(n) | |
l << n | |
end | |
x['l'] = l | |
x['ls'] = l.size | |
x['ns'] = x['n'].to_s(2).length | |
x['h'] = x['ls'].to_f / x['ns'] | |
x['h2'] = (x['h'] * $g).to_i | |
return x | |
end | |
def next2(z) | |
l = [z] | |
p = z['p'] + 1 | |
l << adv({'n'=>z['n'] + 2**p, 'p'=>p}) | |
l << z.merge({'p'=>p}) | |
return l | |
end | |
def insert(l, x) | |
l << x | |
end | |
def delete(l, j) | |
z = l.delete_at(j) | |
return z | |
end | |
def sum(l) | |
t = 0 | |
l.each { |x| t += x } | |
return t | |
end | |
def stat(l) | |
t = t2 = 0 | |
l.each \ | |
{ | |
|x| | |
t += x | |
t2 += x ** 2 | |
} | |
c = l.size | |
a = t.to_f / c | |
z = t2.to_f / c - a ** 2 | |
sd = Math.sqrt(z < 0 ? 0 : z) | |
return a, sd, l.max.to_f, l.min.to_f | |
end | |
def dist(l) | |
l2 = [] | |
l.each_with_index \ | |
{ | |
|x, i| | |
h = x[1]['h2'] | |
l2[h] = [] if (l2[h].nil?) | |
l2[h] << i | |
} | |
l1 = (0...l2.size).sort_by { |i| l2[i].nil? ? 0 : l2[i].size } | |
return l2, l1 | |
end | |
def rank(l1, l2) | |
l1h, l1s = dist(l1) | |
l2h, l2s = dist(l2) | |
j = l1s.find { |x| !l2h[x].nil? && (l1h[x].nil? || l1h[x].size < $n) } | |
j = l2h.size - 1 if (j.nil?) | |
k = l2s.find { |x| !l2h[x].nil? } | |
l = (0...l2.size).to_a | |
l = l.sort_by { |x| l2[x][1]['ls'] } | |
k = l.find { |x| x != j } | |
return l2h[j][rand(l2h[j].size)], k | |
end | |
def opt(c) | |
l = [] | |
l1 = [] | |
insert(l, next2({'n'=>1, 'p'=>0})) | |
puts('# ' + Time.now.to_s) | |
t = Time.now.to_i | |
c.times \ | |
{ | |
|i| | |
$stderr.puts([i, sprintf('%.1fm', (Time.now.to_i - t) / 60.0), Time.now.to_s].join("\t")) if (i % 100 == 0) | |
j, k = rank(l1, l) | |
if (l.size > 1000) then | |
z2 = delete(l, [j, k].max) | |
z1 = delete(l, [j, k].min) | |
l1 += [z1, z2] | |
z = j < k ? z1 : z2 | |
else | |
z = delete(l, j) | |
l1 += [z] | |
end | |
insert(l, next2(z[1])) | |
insert(l, next2(z[2])) | |
$stdout.flush | |
} | |
puts('# ' + Time.now.to_s) | |
return l1.map { |x| x[1] } | |
end | |
def stat2(l, t) | |
return stat(l).map { |x| x / t } | |
end | |
def stat1(l) | |
l1 = stat(l) | |
l1 = l1.map { |x| sprintf("%.3f", x).to_f } | |
return {'a' => l1[0], 'sd' => l1[1], 'mx' => l1[2], 'mn' => l1[3] } | |
end | |
def d(s) | |
c = s.split('').select { |x| x == '1' }.size | |
d = c.to_f / s.length | |
return d | |
end | |
def data(x) | |
n = x['n'] | |
ns = n.to_s(2) | |
nl = ns.length | |
m = nl / 2 | |
nsh = ns[0..m] | |
nsl = ns[m..-1] | |
asdm1 = stat2(ns.split(/0+/).map { |y| y.length }, nl) | |
l1 = ns.split(/1+/) | |
l1.shift | |
asdm0 = stat2(l1.map { |y| y.length }, nl) | |
return [nl, x['ls'], x['h2'], d(ns), d(nsh), d(nsl), asdm1].flatten | |
end | |
def out(fn, l) | |
f = File.open("#{fn}.txt", 'w') | |
l.each { |x| f.puts(x.join("\t")) } | |
f.close | |
end | |
def sample(c) | |
l = opt(c) | |
a = {} | |
h = {} | |
l.each \ | |
{ | |
|x| | |
n = x['n'] | |
h2 = x['h2'] | |
h[h2] = h.fetch(h2, {}).merge!({ n => nil }) | |
a[n] = x | |
} | |
# h.sort.each { |k, v| p([k, v.size]) }; exit; | |
l3 = [] | |
c1 = 10 | |
h1 = h.select { |k, v| v.size >= c1 }.sort | |
h1.each_with_index \ | |
{ | |
|kv, n| | |
k, v = kv | |
l1 = v.keys.sort | |
c1.times \ | |
{ | |
|i| | |
n = l1[(i.to_f / (c1 - 1) * (l1.size - 1)).to_i] | |
l3 << a[n] | |
} | |
} | |
l2 = l3.map { |x| data(x) } | |
return l2 | |
end | |
def av(l) | |
return nil if (l.empty?) | |
return sum(l) / l.size | |
end | |
def d0(p, d, l, j, z0) | |
r = (0...p.size) | |
r0 = r.select { |x| !d[x].finite? } | |
if (!r0.empty?) then | |
r0.each \ | |
{ | |
|x| | |
$l << ['+', j, l[x]] if (p[x][$c] != z0) | |
} | |
return av(r0.map { |x| p[x][$c] }) | |
end | |
t = sum(d) | |
w = d.map { |x| x / t } | |
z = 0 | |
r.each { |x| z += (w[x] * p[x][$c]) } | |
r.each \ | |
{ | |
|x| | |
w0 = w[x] * p.size | |
p0 = w0 * p[x][$c] | |
$l << [{true => '+', false => '-'}[p0 > z0], j, l[x]] | |
} | |
return z | |
end | |
def near2(l, j, a) | |
l3 = a['l'] | |
l2 = [] | |
l1 = {'a' => ['a'], 'b' => ['a'], 'c' => ['a', 'b']}[$b[j]] | |
l.size.times \ | |
{ | |
|i| | |
next if (i == j) | |
next if (!l1.member?($b[i])) | |
d = 0 | |
l3.each { |x| d += (l[i][x] - l[j][x]) ** 2 } | |
l2 << {'i' => i, 'd' => d} | |
} | |
l2 = l2.sort_by { |x| x['d'] } | |
r = (0..a['r']) | |
l4 = r.map { |x| l2[x]['i'] } | |
p = l4.map { |x| l[x] } | |
return d0(p, r.map { |x| 1.0 / l2[x]['d'] }, l4, j, l[j][$c]) | |
end | |
def inc(x, y) | |
x['t'] += y | |
x['c'] += 1 | |
return x | |
end | |
def avg(x) | |
return x['t'] / x['c'] | |
end | |
def reshuffle() | |
l = $b.select { |x| x != 'c' }.shuffle | |
$b[0...l.size] = l | |
end | |
def near(l, l3) | |
reshuffle() | |
s = {'t' => 0.0, 'c' => 0} | |
e2 = {'a' => s.dup, 'b' => s.dup, 'c' => s.dup} | |
$l = [] | |
l.size.times \ | |
{ | |
|i| | |
x = near2(l, i, l3) | |
e = (l[i][$c] - x) ** 2 | |
inc(e2[$b[i]], e) | |
} | |
return Hash[e2.keys.map { |x| [x, avg(e2[x])] }] | |
end | |
def abc(n) | |
$b = [] | |
a = {'a' => 3, 'b' => 2, 'c' => 1} | |
t = sum(a.values) | |
a.each \ | |
{ | |
|k, v| | |
$b += [k] * (v.to_f / t * n).to_i | |
} | |
$b[$b.size...n] = [a.keys.last] * (n - $b.size) | |
end | |
def subset(l2) | |
l1 = (2..l2.size).to_a | |
c = l1.delete_at(rand(l1.size)) | |
l3 = [] | |
c.times { l3 << l2.delete_at(rand(l2.size)) } | |
return l3 | |
end | |
def subset2(l2, i2) | |
l2 = l2.dup | |
x = l2.pop | |
l = subset(l2) + ((i2 == 1) ? [x] : []) | |
a = {'l' => l.sort, 'r' => 10} | |
return a | |
end | |
def compare(l, n, i0 = nil) | |
$x = {} if ($x.nil?) | |
$x[n] = {'s' => {}, 'l' => []} if (!$x.member?(n)) | |
s = $x[n]['s'] | |
l0 = $x[n]['l'] | |
m = l[0].size - 1 | |
l2 = (($c + 1)..m).to_a | |
i = 0 | |
begin | |
i2 = i % 2 | |
l3 = subset2(l2, i2) | |
next if (s.member?(l3)) | |
s[l3] = nil | |
l0 << near(l, l3).merge({'l3' => l3, 'i2' => i2}) | |
i += 1 | |
end while (i < 10) | |
l0 = l0.select { |x| x['i2'] == i0 } if (!i0.nil?) | |
l0.sort_by! { |x| x['a'] } | |
x = l0.shift.merge({ 'm' => m }) | |
$f[n].puts('# ' + x.inspect) | |
$f[n].flush | |
return x | |
end | |
def opt0(l, l3, n) | |
ls = l.size | |
l = l.transpose | |
l << [0] * ls | |
l = l.transpose | |
w = l[0].size - 1 | |
l3 += [w] | |
a = {'l' => l3, 'r' => 10} | |
m = nil | |
x0 = nil | |
c = 0 | |
loop \ | |
{ | |
x = near(l, a) | |
x0 = x if (x0.nil?) | |
$f[n].puts(x.values_at('a', 'b', 'c').join("\t")) | |
$f[n].flush | |
x['l'] = l.transpose[-1] | |
if (m.nil? || x['a'] < m['a']) then | |
m = x | |
c = 0 | |
else | |
c += 1 | |
end | |
break if (c == 5) | |
$l.shuffle | |
f = 0.1 | |
$l.each \ | |
{ | |
|d, a, b| | |
a, b = [a, b].sort_by { |x| l[x][w] } | |
a, b = [b, a] if (d == '-') | |
l1 = l[a] | |
l2 = l[b] | |
l1[w] = (l1[w] == 0) ? f : l1[w] * (1 - f) | |
l2[w] = (l2[w] == 0) ? f : l2[w] * (1 + f) | |
} | |
} | |
l = l.transpose | |
l[-1] = m['l'] | |
l = l.transpose | |
$f[n].puts | |
return l | |
end | |
def opt1(l) | |
x = compare(l, 1) | |
l = opt0(l, x['l3']['l'], 1) | |
return l | |
end | |
def opt2(l) | |
$i = 0 if ($i.nil?) | |
$i += 1 | |
x = compare(l, 2, $i % 2) | |
l = opt0(l, x['l3']['l'], 2) | |
return l | |
end | |
def opt3(l) | |
l = opt0(l, (($c + 1)...l[0].size).to_a, 3) | |
end | |
$n = 40 | |
$g = 50 | |
l = sample(1000) | |
l.shuffle! | |
ls = l.size | |
$stderr.puts("ls=#{ls}") | |
# out('out', l) | |
abc(ls) | |
$c = 2 | |
l1 = l.dup | |
l2 = l.dup | |
l3 = l.dup | |
$f = {} | |
(1..3).each { |i| $f[i] = File.open("out#{i}.txt", 'w') } | |
loop \ | |
{ | |
l1 = opt1(l1) | |
l2 = opt2(l2) | |
l3 = opt3(l3) | |
} |
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