swaits/aoc2020
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Author SHA1 Message Date
Stephen Waits d0986b6f61 day 18 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-24 09:40:10 -10:00
Stephen Waits 90a766296b remove lazy_static for OnceCell’s Lazy<> 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-24 09:38:50 -10:00
Stephen Waits 39746c982c cleanup many clippy pedantic warnings 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-16 13:51:35 -08:00
Stephen Waits 2a13ede1c4 day 16 hackfest 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-16 00:15:29 -08:00
Stephen Waits 71a46593ba day 13 solution **after hints!** 
Attempted a brute force solution.

After letting my i9 churn on it across all cores and hyperthreads for ~4 days, looked online and learned about Chinese Remainder Theorem. Applied code from Rosetta Code and success.

Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-15 13:58:14 -08:00
Stephen Waits 9fb4f0de7c minor day 15 cleanup 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-15 10:34:37 -08:00
Stephen Waits a10114640a day 15 - use the right data structure (HashMap, not BTreeMap) 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-15 07:47:29 -08:00
Stephen Waits cd1f769de9 day 15 solutions (brute force, slow) 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-15 07:44:57 -08:00
Stephen Waits e56dff5a12 day 14 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-14 23:06:50 -08:00
Stephen Waits aa332efa20 another minor (clippy) cleanup 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-12 20:57:21 -08:00
Stephen Waits 90b94fa805 nicer times() 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-12 07:24:40 -08:00
Stephen Waits 8fb67d653c more cleanup 
- fix all clippy warnings
- add times(n: usize) iterator

Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-12 07:10:10 -08:00
Stephen Waits 16670f26a5 condense day 12 by combining pattern match arms 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-12 06:22:43 -08:00
Stephen Waits 9269a60cde day 12 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-11 21:56:22 -08:00
Stephen Waits fd7dba3c98 minor cleanups 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-11 14:22:49 -08:00
Stephen Waits d961e44681 day 11 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-11 14:18:52 -08:00
Stephen Waits a4642115df day 10 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-10 21:38:13 -08:00
Stephen Waits 1124818641 day 9: minor cleanup 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-10 17:59:49 -08:00
Stephen Waits 214383a0f3 day 9 solutions 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-10 10:17:14 -08:00
Stephen Waits c617dfb8e8 day 8 part 2 solution 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-10 08:13:19 -08:00
Stephen Waits 7caf5dc27a day 8 part 1 solution 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-09 21:14:03 -08:00
Stephen Waits acd90a85ac day 7 comment fix 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-09 19:55:52 -08:00
Stephen Waits fd309fe709 day 7 part 2 solution 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-09 19:52:55 -08:00
Stephen Waits be6253e53f day 7 part 1 solution 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-09 19:17:36 -08:00
Stephen Waits 0e2f1c1afa day 6 formatting cleanup 
Signed-off-by: Stephen Waits <swaits@amazon.com>
 2020-12-07 14:53:55 -08:00
Stephen Waits 8ff5d6dd12 and remove the copypasta fml 2020-12-05 22:07:07 -08:00
Stephen Waits b33db9cb95 minor day 6 golfing 2020-12-05 22:05:49 -08:00
Stephen Waits 0bd288d390 day 6 solutions 2020-12-05 21:47:17 -08:00
Stephen Waits 29dee21cde day 5 solution 2020-12-04 22:34:06 -08:00
Stephen Waits a4558e6e80 day 4 solution 2020-12-04 14:18:37 -08:00
Stephen Waits 069173f036 typo fix 2020-12-02 22:34:29 -08:00
Stephen Waits 3ab5c7926d minor cleanup on day1, use Iterator::sum/product 2020-12-02 22:28:38 -08:00
Stephen Waits 86ac6625de misc cleanup, minor readability fix, cargo clippy 2020-12-02 22:22:55 -08:00
Stephen Waits b217f3a5dd whitespace fix in README.md 2020-12-02 22:15:00 -08:00
Stephen Waits 8a7f205419 day 3 solutions 2020-12-02 22:14:31 -08:00
Stephen Waits 3aa216c806 add Knuth algorithm for combinations as Iterator 2020-12-02 19:19:01 -08:00
Stephen Waits 01b4123dd3 add LICENSE and README.md 2020-12-02 15:32:09 -08:00
Stephen Waits 71e7c5e90d initial commit, includes days 1 and 2 solutions 2020-12-02 15:21:56 -08:00