iorionda · September 2, 2015 07:35
diff --git a/poh_1.rb b/poh_1.rb
 x=y=0.0
 gets.to_i.times do
  t,s=gets.split.map(&:to_i)

  case t
  when 1
    x+=s
  when 2
    y+=s
  when 3
    x,y=x-s*x/(x+y),y-s*y/(x+y)
  end
 end
 puts (100*y/x+y).to_i

 # 4
 # 1 50
 # 2 55
 # 3 15
 # 1 20
 # => 42
	x=y=0.0
	gets.to_i.times do
	t,s=gets.split.map(&:to_i)

	case t
	when 1
	x+=s
	when 2
	y+=s
	when 3
	x,y=x-sx/(x+y),y-sy/(x+y)
	end
	end
	puts (100*y/x+y).to_i

	# 4
	# 1 50
	# 2 55
	# 3 15
	# 1 20
	# => 42