Solutions for https://adventofcode.com/2017/

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Jonathan Chan 0a29e1e0b6 Fixed input imports due to 0 prefix for days 01 to 09.		2017-12-17 16:11:13 -08:00
.gitignore	Day 17 - it's a lot faster in Javascript...	2017-12-16 23:44:08 -08:00
01.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
01.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
02.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
02.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
03.hs	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
04.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
04.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
05.hs	Day 5 - added some strict evaluation for performance	2017-12-17 16:10:39 -08:00
05.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
05_alt.hs	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
06.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
06.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
07.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
07.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
07_cumulate.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
07_tree.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
08.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
08.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
09.hs	Fixed input imports due to 0 prefix for days 01 to 09.	2017-12-17 16:11:13 -08:00
09.txt	Prepended single-digit files with 0s for nice ordering.	2017-12-12 09:29:13 -08:00
10.hs	Day 10 - condensed a lot of functions and used normal lists instead of Seq	2017-12-12 09:29:07 -08:00
10.txt	Day 10	2017-12-12 09:29:07 -08:00
11.hs	Minor refactorings of days 3, 4, 5, 6, 7, 9, 11, and removed alternate solution (i.e. the original one) for 9.	2017-12-12 09:29:10 -08:00
11.txt	Day 11	2017-12-12 09:29:07 -08:00
12.hs	Day 12 - removed old solution in favour of graph-based solution	2017-12-16 11:12:40 -08:00
12.txt	Day 12, plus some edits to days 1 and 2	2017-12-12 09:29:10 -08:00
13.hs	Day 13	2017-12-12 22:59:14 -08:00
13.txt	Day 13	2017-12-12 22:59:14 -08:00
14.hs	Day 14 - condensed some stuff, it's fine	2017-12-14 15:06:36 -08:00
15.hs	Day 15 - removed old solution in favour of faster strict solution	2017-12-16 11:14:01 -08:00
16.hs	Day 16 - finally!	2017-12-17 11:55:59 -08:00
16.txt	Day 16 - how to do part 2 without taking 3 years ��	2017-12-16 11:09:58 -08:00
17.hs	Day 17 - sped up to ~6s using strict recursion!	2017-12-17 15:13:38 -08:00
17.js	Day 17 - it's a lot faster in Javascript...	2017-12-16 23:44:08 -08:00
README.md	Update README.md	2017-12-17 15:31:53 -08:00

README.md

Advent of Code 2017

Hopefully most of these solutions are fairly self-explanatory. I'll write longer-length explanations for harder questions.

Posts

Day 3: Spiral Memory (problem description)

Runtimes

These are the runtimes of only one trial but the variances are fairly small and the focus is on the differences in runtime among the different solutions to see which have comparatively worse performance.

Day	Runtime (s)
01	0.044
02	0.078
03	0.074
04	0.082
05	27.430
06	0.398
07	0.148
08	0.137
09	0.102
10	0.340
11	0.119
12	0.168
13	2.136
14	8.211
15	62.242
16	0.462
17	6.753

Problems that should be optimized further: 05, 15

Problems that could use some work: 14, 17, 13