AtCoder AGC #007 [Ruby]

agc007-a.rb

h, w = gets.chomp.split(" ").map(&:to_i)
s = 0
h.times do
  row = gets.chomp.split("")
  s += row.count("#")
end
if s == (h + w - 1) then
  puts "Possible"
else
  puts "Impossible"
end

agc007-b.rb

n = gets.chomp.to_i
p_ = gets.chomp.split(" ").map(&:to_i)
a_ = (1..n).map{|x| x * n}
b_ = a_.reverse
d = 1
p_.each do |i|
  a_[i-1] += d
  d += 1
end
puts a_.join(" ")
puts b_.join(" ")