christianberg

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.

christianberg

christianberg

<?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>

christianberg

FROM ubuntu

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

VOLUME /foo

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

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:

christianberg

module RSpec::Puppet
  module Support

    @@cache = {}

    def catalogue(type)
      vardir = setup_puppet

      if (type == :host)
        code = nil

christianberg

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

christianberg

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

christianberg

#!/bin/bash
set -e

SECRETFILE=~/.digitalocean
if [[ -z $DIGOCEAN_ID ]] || [[ -z $DIGOCEAN_KEY ]]; then
    if [ -e $SECRETFILE ]; then
        . $SECRETFILE
    fi
fi

christianberg

#/bin/bash
set -e

echo "=== Activating Firewall (only SSH allowed) ==="
ufw allow ssh
ufw --force enable

if [ ! -f /swapfile ]; then
    echo "=== Activating swap ==="
    fallocate -l 1G /swapfile