Advent of Code https://git.causal.agency/aoc/atom?h=master 2020-11-22T05:14:26+00:00 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-12T05:50:59+00:00 urn:sha1:a5332be91a0aa565aedce2053f5bbc68dd470dbd I'm so fucking frustrated with this one. I was stuck for hours trying to sort the points by angle not realizing that (int)(angle(a) - angle(b)) would be 0 for all angles with differences smaller than 1. I also wanted to do the sort by atan2(-y, x) - π/2 intuitively to get "up" be zero, but I never got that to work. 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-12T01:19:27+00:00 urn:sha1:9cab2c625c029087df68072bc4cff3e78b32ead5 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-11T23:20:46+00:00 urn:sha1:f1f9968fb04901cfdafbe060416fb32da220b338 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-11T23:16:01+00:00 urn:sha1:2c20502210ed6fa503ea051b70e0afd2993c54f4 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-11T23:00:44+00:00 urn:sha1:91a98158b74c428b67af8a5c6764ae055ef60582 Yikes, I had gotten annoyed at this on day 7 because I didn't see what was wrong. Turns out I was just missing amp[0].in = 0. 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-07T20:46:42+00:00 urn:sha1:d7e7eee50458177666358a60993b48876391cf8b 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-06T11:05:06+00:00 urn:sha1:86792baf75836bf9d4c4e7cdf6417c8cf0afcf5f 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-06T10:53:42+00:00 urn:sha1:c3406a02a178421218e152ddf0609f50268be23b 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-06T08:16:13+00:00 urn:sha1:fb84fd04675c2b6c7e283f07ee3771b03e49d87b 2020-11-22T05:14:26+00:00 June McEnroe june@causal.agency 2019-12-06T08:10:23+00:00 urn:sha1:2545a97506fe589917491ff9dfe3bddc0d2cde0f