Module solution 

Traits for declaring solutions of advent of code puzzles, and functions for running them.

Traits

Day

Solution for both parts of a day

Part

A solution of a part of an advent of code puzzle.

Functions

run

Run a day dynamically (with the day itself specified at runtime).

run_day

Run the solution of both parts for a given day, returning the result as a string.

run_day_part

Run the solution of a given part for the given day, returning the result as a string.