CodinGameのSkynet: the Chasm（PUZZLES：３問目）をRubyで解いてみた

STDOUT.sync = true # DO NOT REMOVE
# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.

@road = gets.to_i # the length of the road before the gap.
@gap = gets.to_i # the length of the gap.
@platform = gets.to_i # the length of the landing platform.

# game loop
loop do
    speed = gets.to_i # the motorbike's speed.
    coord_x = gets.to_i # the position on the road of the motorbike.
    
    # Write an action using puts
    remaining_distance = @road - coord_x - 1
    
    # To debug: STDERR.puts "Debug messages..."
    next_activity = ""
    if speed == 0 and coord_x == 0
        next_activity =  "SPEED"
    elsif
        if speed > @gap
            if remaining_distance <= 0
                next_activity = "JUMP"
            else
                if speed > @gap + 1
                    next_activity = "SLOW"
                else
                    next_activity = "WAIT"
                end
            end
        else
            next_activity = "SPEED"
        end
        if coord_x >= @road + @gap
            next_activity = "SLOW"
        end
    end
    
    puts next_activity    
    
    STDERR.puts "speed   :" + speed.to_s
    STDERR.puts "coord_x :" + coord_x.to_s
    STDERR.puts "@road   :" + @road.to_s
    STDERR.puts "@gap    :" + @gap.to_s
    STDERR.puts "platform:" + @platform.to_s
    STDERR.puts "remaining_distance :" + remaining_distance.to_s

end