Module advent_solutions::advent2017::day24

Day 24: Electromagnetic Moat

The CPU itself is a large, black building surrounded by a bottomless pit. Enormous metal tubes extend outward from the side of the building at regular intervals and descend down into the void. There's no way to cross, but you need to get inside.

No way, of course, other than building a bridge out of the magnetic components strewn about nearby.

Structs

Component

Each component has two ports, one on each end. The ports come in all different types, and only matching types can be connected. You take an inventory of the components by their port types (your puzzle input). Each port is identified by the number of pins it uses; more pins mean a stronger connection for your bridge. A 3/7 component, for example, has a type-3 port on one side, and a type-7 port on the other.

Functions

parse_input
part1	The strength of a bridge is the sum of the port types in each component. For example, if your bridge is made of components 0/3, 3/7, and 7/4, your bridge has a strength of 0+3 + 3+7 + 7+4 = 24.
part2	The bridge you've built isn't long enough; you can't jump the rest of the way.