Christian Berg christianberg

Keybase proof

I hereby claim:

I am christianberg on github.
I am cberg (https://keybase.io/cberg) on keybase.
I have a public key whose fingerprint is E40B A1BE 5CAF 2FA4 032C 4D62 187E 8328 A0A6 8B42

To claim this, I am signing this object:

The one-line solution for part 2 of Day 3 of Advent of Code:

jq -sR '[([1,1],[3,1],[5,1],[7,1],[1,2]) as $slope | ./"\n" | [.,([range(length)]|map(.%$slope[1]))] | transpose | map(select(.[1]==0)|.[0]) | (.[0] | length) as $w| [.,([range(0;length*$slope[0];$slope[0])]|map(.%$w))] | transpose | map(.[0][.[1]:.[1]+1] | select(.=="#")) | length] | reduce .[] as $i (1; . * $i)' < input.txt

And an annotated version. This is the same code as above, with more whitespace, longer variable names, and comments.

[
  ([1,1],[3,1],[5,1],[7,1],[1,2]) as $slope |      ## Loop through all possible slope values, assigning it to the $slope variable.
  ./"\n" |                                         ## `.` is the entire input file (because we call `jq -sR`). Here we split it into lines.

	FROM ubuntu:12.04
	ENV DEBIAN_FRONTEND noninteractive
	RUN apt-get update -y
	RUN apt-get upgrade -y

	module RSpec::Puppet
	module Support

	@@cache = {}

	def catalogue(type)
	vardir = setup_puppet

	if (type == :host)
	code = nil

	FROM ubuntu

	RUN apt-get update
	RUN apt-get install -y socat

	VOLUME /foo

	CMD socat UNIX-LISTEN:/foo/bar.sock -

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>KeepAlive</key>
	<true/>
	<key>Label</key>
	<string>local.runit</string>
	<key>ProgramArguments</key>
	<array>

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console