diff --git a/day_14.rb b/day_14.rb new file mode 100644 index 0000000..94ceada --- /dev/null +++ b/day_14.rb @@ -0,0 +1,19 @@ +regex = /(\w+) can fly (\d+) km\/s for (\d+) seconds, but then must rest for (\d+) seconds/ +puts DATA.read.scan(regex).map { |name, speed, time, rest| + distance = speed.to_i * time.to_i + total_time = time.to_i + rest.to_i + reps = 2503 / total_time + + total_distance = reps * distance + [2503 % total_time, time.to_i].min * speed.to_i + [name, total_distance] +}.max {|a,b| a.last <=> b.last } +__END__ +Dancer can fly 27 km/s for 5 seconds, but then must rest for 132 seconds. +Cupid can fly 22 km/s for 2 seconds, but then must rest for 41 seconds. +Rudolph can fly 11 km/s for 5 seconds, but then must rest for 48 seconds. +Donner can fly 28 km/s for 5 seconds, but then must rest for 134 seconds. +Dasher can fly 4 km/s for 16 seconds, but then must rest for 55 seconds. +Blitzen can fly 14 km/s for 3 seconds, but then must rest for 38 seconds. +Prancer can fly 3 km/s for 21 seconds, but then must rest for 40 seconds. +Comet can fly 18 km/s for 6 seconds, but then must rest for 103 seconds. +Vixen can fly 18 km/s for 5 seconds, but then must rest for 84 seconds.