Created
September 4, 2015 22:34
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def compress(l) | |
s = 'a' | |
l1 = [] | |
a = {} | |
c = 1 | |
loop \ | |
{ | |
l2 = (0...l.size).sort_by { |x| l[x..-1] } | |
z = (0...(l2.size - 1)).to_a.map \ | |
{ | |
|x| | |
n = 1 | |
m = [-1] | |
while (x + n < l2.size) | |
i, j = l2[x], l2[x + n] | |
i, j = [j, i] if (i > j) | |
t = 0 | |
t += 1 while (l[i + t] == l[j + t] && i + t < j && j + t <= l2.size) | |
m = [m, [t, i, j]].max | |
n += 1 | |
end | |
m | |
}.sort.last | |
t, i, j = z | |
break if (z.nil? || t <= 1) | |
s2 = l[j, t] | |
l1 << [s, s2] | |
l[j, t] = s | |
l[i, t] = s | |
i = 0 | |
while (i + t < l.size) | |
l[i, t] = s if (s2 == l[i, t]) | |
i += 1 | |
end | |
a[s] = c | |
s = s.succ | |
c += 1 | |
} | |
$x = 0 if ($x.nil?) | |
l.reverse.each { |x| puts([$x, a[x]].join("\t")) if (a.member?(x)); $x += 1 } | |
$x += 50 | |
$stdout.flush | |
end | |
def out(l) | |
l = l.sort_by { |x| x['n'] }.map { |x| x['b'] + ['_'] }.flatten | |
compress(l) | |
end | |
l = [{'n' =>1, 'b' => ["1"], 'd' => 0, 'p' => []}] | |
seen = {1 => nil} | |
22.times \ | |
{ | |
|i| | |
$stderr.puts(i) | |
l2 = [] | |
l.each \ | |
{ | |
|x| | |
n, b, d, p = x['n'], x['b'], x['d'], x['p'] | |
([n * 2] + (((n % 3 == 1) && (y = (n - 1) / 3).odd?) ? [y] : [])).each_with_index \ | |
{ | |
|x, i| | |
next if (seen.member?(x)) | |
seen[x] = nil | |
z = {'n' => x, 'b' => x.to_s(2).split(''), 'd' => d + 1, 'p' => p + [i.to_s]} | |
l2 << z | |
} | |
} | |
l = l2 | |
out(l) | |
} | |
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