train_kata.rb

departures =
{"Train 1" => 2,
"Train 2" => 5,
"Train 3" => 7.5,
"Train 4" => 8.5,
"Train 5" => 9,
"Train 6" => 10,
"Train 7" => 11.5,
"Train 8" => 13.5,
"Train 9" => 14.5,
"Train 10" => 17,
"Train 11" => 18,
"Train 12" => 19,
"Train 13" => 24}

puts "What time are you leaving?"
time = gets.chomp.to_i
time_difference = 100
next_train = ""
next_time = 0

departures.each do |train,departure_time|
	if time < departure_time
		difference = departure_time - time
		if time_difference > difference
			time_difference = difference
			next_train = train
			next_time = departure_time
		end
	end
end

if next_train == "Train 13"
	puts "Just a small town girl
Living in a lonely world,
she took #{next_train} going an-y-wherrrreeee!"
else
	puts "The best train for you is #{next_train} which leaves at #{next_time}!"
end