My Advent of Code 2020 solutions!
--------Part 1--------- --------Part 2--------
Day Time Rank Score Time Rank Score
25 00:19:37 1424 0 00:20:05 1213 0
24 00:56:50 2882 0 01:30:15 2465 0
23 00:35:47 1334 0 23:01:17 9419 0
22 00:09:34 1002 0 01:21:33 2358 0
21 00:32:54 1242 0 00:43:19 1214 0
20 00:38:17 794 0 13:03:43 3817 0
19 00:26:14 432 0 02:18:52 1939 0
18 00:24:38 1077 0 00:45:41 1292 0
17 00:36:15 1490 0 00:48:23 1622 0
16 00:25:48 2925 0 00:59:13 1788 0
15 00:18:48 1869 0 00:19:17 796 0
14 00:58:40 5039 0 01:10:46 2901 0
13 01:41:50 8271 0 02:17:38 3606 0
12 00:20:35 2870 0 00:34:23 2005 0
11 00:39:37 3370 0 01:04:29 3147 0
10 00:10:08 2349 0 00:39:38 2003 0
9 00:28:48 6670 0 01:06:54 7954 0
8 00:34:38 7507 0 01:05:32 6785 0
7 01:09:31 6077 0 01:14:56 4202 0
6 00:09:49 3604 0 00:20:31 3772 0
5 00:31:40 5686 0 00:36:09 4700 0
4 00:38:24 7038 0 01:06:22 4788 0
3 18:25:25 59841 0 18:52:13 57843 0
2 >24h 80997 0 >24h 78540 0
1 >24h 101832 0 >24h 95449 0
Every star except Day 23 Part 2 completed without outside help
Each day's solution can be found in a subdirectory.
The go executable can be built from the respective subdirectory by running
$ go buildand then run like
$ ./Day01 input.txt
2020/12/03 21:07:57 Inputs [933 1087] sum to 2020! Their product is 1014171This will log the answer(s) in a user-friendly message. In cases where the default behavior does not output answers for both parts, the default behavior will output an answer for Part 1 and the user may specify a flag in order to get the answer for Part 2.
For example for Day 1:
$ ./Day01 -three-sum input.txt
2020/12/03 21:08:47 Inputs [1395 59 566] sum to 2020! Their product is 46584630Run the executable with the -help flag to get a readout of the available flags:
$ ./Day01 -help
Usage of ./Day01:
-target int
target sum (default 2020)
-three-sum
find three input lines that sum to target rather than twoFor most days, if improperly formatted input is given the program will log a fatal error.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent