Advent of Code 2019

This is my attempt at solving the Advent Of Code problems in Julia (what else?), trying to provide reasonably efficient solutions.

Performances

export AOC_PERF=1
julia --project test/runtests.jl

Title	Mem [MiB]	Allocs	Time [ms]
1.1	0.01	222	0.03
1.2	0.01	222	0.03
2.1	0.01	182	0.03
2.2	0.02	192	9.03
3.1	20.9	1284	35.52
3.2	16.74	1314	30.78
4.1	0.0	0	7.88
4.2	0.0	0	8.78
5.1	0.05	720	0.11
5.2	0.05	718	0.11
6	1.21	20187	1.29
7.1	0.11	1888	0.34
7.2	0.07	859	0.7
8.1	0.15	124	0.21
8.2	0.15	59	0.22
9.1	0.06	1016	0.15
9.2	0.07	1019	9.91