tyler · June 3, 2010 03:25
diff --git a/SICP Exercise 1.18.rb b/SICP Exercise 1.18.rb
 def even?(n)
  n % 2 == 0
 end

 def fast_mult(b, n)
  a = 0
  while n > 0
    if even?(n)
      n /= 2
      b *= 2
    else
      n -= 1
      a += b
    end
  end
  a
 end
	def even?(n)
	n % 2 == 0
	end

	def fast_mult(b, n)
	a = 0
	while n > 0
	if even?(n)
	n /= 2
	b *= 2
	else
	n -= 1
	a += b
	end
	end
	a
	end