dean151 / advent-of-code-2018

My contribution to https://adventofcode.com

Advent of code 2018

Made with Xcode 10.1 and Swift 4.2

My goal

Trying to solve each puzzle each day. I hope I'll have enough time and motivation to do so.

My own rules

The puzzle will be solved in Swift ; but not in playground like last year (that was a mistake).

No cheating. Many other person do the puzzle. I'll have to come up with my own solution ... or skipping a day.

Some code may be reused from one day to another.

Not all special cases will be treated by the code.

Some attention will be ported to performance consideration, let try to make that less than 5 seconds per day!

Puzzle solutions so far

Day	Computing time*	Part 1	Part 2
1	0,028s	505	72330
2	0,005s	7776	wlkigsqyfecjqqmnxaktdrhbz
3	0,167s	120408	1276
4	0,010s	11788	36896
5	0,143s	10598	5312
6	0,036s	3260	42535
7	0,004s	BHRTWCYSELPUVZAOIJKGMFQDXN	959
8	0.035s	38780	18232
9	3,930s	384205	3066307353
10	0,104s	AHFGRKEE	10243
11	1,879s	21,93	231,108,14
12	0,029s	3337	4300000000349
13	0,030s	124,90	145,88
14	3,053s	6910849249	20330673
15	3,274s	206720	37992
16	0,043s	640	472
17	0,036s	39367	33061
18	2,170s	456225	190164
19	0,169s	2106	23021280
20	6,804s	3966	8173
21	9min 16s	12446070	13928239
22	4,119s	6256	973
23	0,026s	219	-
24	TBA	26868	-

* : Best elapsed time of the complete solution for my MacBook Pro 13in mid 2013 in "Release" mode