http://golf.shinh.org/p.rb?guess+Base+N

guess_base_n.rb

$<.map{|l,n=1|l[l.to_i.to_s n+=1]||redo;p n}
$<.map{|l,n=1|l[l.to_i.to_s n+=1]||redo;n}
#!ruby -n
$_[$_.to_i.to_s n=n.to_i+1]||redo;p n
__END__
#!ruby -n
$_[$_.to_i.to_s n=n.to_i+1]||redo;p n
$<.map{|l=n=1|$_[$_.to_i.to_s n+=1]||redo;p n}
__END__
$<.map{|l,n=1|l[l.to_i.to_s n+=1]||redo;p n}
__END__
$<.map{|l,n=1|l[l.to_i.to_s n+=1]||redo;p n}
__END__
#!ruby -n
p 2.step.find{|n|$_[$_.to_i.to_s n]}
#!ruby -n
n||=1;$_[$_.to_i.to_s n+=1]||redo;p n
__END__
#!ruby -an
p ?1.find{|n|$_.to_i==$F[1].to_i(n)}
__END__
p 2.step.find{|n|$_[$_.to_i.to_s n]}while gets
$<.map{|l|p 2.step.find{|n|l[l.to_i.to_s n]}}
__END__
n=1;p {$_[$_.to_i.to_s n]}
~/ /;(2..10).index{}
p 2.step.find{|n|$_[$_.to_i.to_s n]}
p[]*10.index{|n|$_[$_.to_i.to_s n]}
__END__
n=1;1 until$_.to_i.to_s(n+=1);p n
$n=1;1 until$_[$_.to_i.to_s n+=1];p n

__END__
$<.map{|l|$.+=1 until l[l.to_i.to_s$<[$.]]}
$<.map{|l|1 until l[l.to_i.to_s rand 2..10]]}

p 2.step.find{|n|$_[$_.to_i.to_s n]}

# puts$<.map{2.step.find{|n|l[l.to_i.to_s n]}}
# $<.map{"p 2.step.find{|n|#$_.to_s n}"}
# $<.map{|l|p 2.step.find{|n|l[l.to_i.to_s n]}}

#!ruby -an
# p 2.step.find{|n|a,b=$F;a=="#{b.to_i n}"}
# p 2.step.find{|n|a,=$F;eval [a,'.to_s ']
# p 2.step.find{|n|,b=$F;a.to_i["#{b.to_i n}"]}

# 1 until$_[$_.to_i.to_s $.=rand(2..10)];p$.
def get_statistics(s)
  a=[0,0,0,0]
  an=/[a-zA-Z0-9]/
  ws=/[ \t\n]/
  s.each_byte{|x|
    s=x.chr
    a[an=~s ?2:ws=~s ?1: x<127&&x>32?3:0]+=1
  }
  a
end

p get_statistics(<<EOS)
$<.map{|l|p 2.step.find{|n|l[l.to_i.to_s n]}}
EOS

# ここから↓提出
# $<.map{|l,n=1|l[l.to_i.to_s n+=1]||redo;p n}
# $<.map{|l|p 2.step.find{|n|l[l.to_i.to_s n]}}
#!ruby -n
# p 2.step.find{|n|$_[$_.to_i.to_s n]}
#!ruby -n
# n=1;1 until$_[$_.to_i.to_s n+=1];p n
#!ruby -n
# p (2..10).find{|n|$_[$_.to_i.to_s n]}
#!ruby -an
# p (2..10).find{|n|a,b=$F;a=="#{b.to_i n}"}