santa map

santa.rb

basement = []
floor = 0
f = File.read("./santas_map_input.txt")

f.chars.each_with_index do |f, idx|
  if f=='('   
    floor += 1    
  else    
    floor -= 1    
  end 
  basement << (idx+1) if floor == -1  
end  

puts "ends on floor #{floor}"
puts "first time in basement #{basement.first}"

(reduce + 
         (map #(if (= (str %) "(" ) 
                   1 
                   -1) 
                  (slurp "./santas_map_input.txt")))