Jan 2020 | Jan 2018 | Jan 2017 | Jan 2016 | Jan 2015 | Jan 2014 | Jan 2013 | Jan 2012 | Jan 2011 | Jan 2010 | Jan 2009
Being the thoughts and writings of one Gustaf Erikson; father, amateur photographer, technologist.
Frequently updated microblog.
More stuff can be found at gerikson.tumblr.com and Flickr.
I toot at @email@example.com.
Follow my bookmarks at Pinboard.
For four years, I have managed to avoid to hear all but a few sentences spoken by the late unlamented 45th president of the United States. I don’t know if I’d managed four more years.
Trump is of course just the symptom, not the disease, and he’s just the tip of an iceberg of stewing resentment and irrationality. I’m not convinced today’s and tomorrow’s leaders have what it takes to melt it. Perhaps it will all be boiled away like life itself when the planet heats up.
Simple chart showing the number of days between every 1 000 deaths, and the average deaths per day.
Update Monday, 2021-03-01: revised dates based on official stats from FHM.
I’m a bit fired up after Advent of Code, so thought I’d start by picking off some “easy” recent PE problems.
My first brute-force attempt found a solution after 4.5 hours, but access to the forum showed much smarter solutions so that’s what I’ve added to the repo.
Also a coup or something in the US…
This was a good year, in my opinion. It was a return to the 2015-2017
era, before the unfortunate experiment in collective puzzle-making in
2018, and the “armature” of the
intcode puzzles in 2019. These were
fun, and impressive, but if you missed out on doing them there was
~45% of the puzzles gone.
I managed to solve all puzzles before the end of the year, with a personal score of 48 out of 50, which is the best I’ve done since 2016.
AoC has grown hugely, even compared to last year. Here’s how many solved both parts of day 1 and day 25 (essentially solving every puzzle):
|Year||2 stars day 1||2 stars day 25||Personal best ranking|
for 2 stars
|2015||50 358||3 521||422 (day 16)|
|2019||101 125||3 137||2 111 (day 23)|
|2020||148 468||11 285||5 040 (day 18)|
Favorite puzzle was probably day 20, where we had to do some image recognition. I didn’t finish this on the day it was released but had some fun polishing it later.