1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
require "json"

class String
  def sum
    0
  end
end

class Integer
  def sum
    self
  end
end

class Array
  def sum
    self.map(&:sum).inject(&:+)
  end
end

class Hash
  def sum
    if self.values.include?("red")
      0
    else
      self.values.map(&:sum).inject(&:+)
    end
  end
end

puts JSON.load(DATA.read).sum

__END__