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# This builds a publicly available SSH server on EC2.
#
# Make sure to edit the path to your public SSH key.
#
# Log in:
#
#     $ ssh ubuntu@$(terraform output -raw public_ip)

terraform {
  required_providers {

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require "nokogiri"
require "open-uri"
require "optparse"
require "set"

MAX_DEPTH = 2

class Page
  def initialize(body:, url:)
    @body = body

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require "rspec/autorun"

# An implementation of an immutable binary search tree in Ruby, with a small
# suite of tests. Supports #==, #insert, #delete, and #to_a (an in-order
# traversal).
#
# To run the tests, just evaluate the file: `ruby binary_search_tree.rb`

class Leaf
  def ==(other)

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# Supposing that you're starting on the master branch...

# Create a new branch and switch to it:
git checkout -b my-work

# Commit your changes on that branch:
git add .
git commit -m "My work so far!"

# Update the master branch:

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int even_sum = 0;
int input = 0;
bool is_even = false;

cin >> input;

while (input > 0) {
  is_even = ! (input % 2);

  if (is_even) {

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#!/usr/bin/env ruby

# Because sometimes you need a script that generates a random
# Github-compatible emoji.

emoji = %w{+1 -1 100 1234 8ball a ab abc abcd accept aerial_tramway
airplane alarm_clock alien ambulance anchor angel anger angry
anguished ant apple aquarius aries arrow_backward arrow_double_down
arrow_double_up arrow_down arrow_down_small arrow_forward
arrow_heading_down arrow_heading_up arrow_left arrow_lower_left

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#include <stdio.h>
main(t,_,a)
char *a;
{
return!0<t?t<3?main(-79,-13,a+main(-87,1-_,main(-86,0,a+1)+a)):
1,t<_?main(t+1,_,a):3,main(-94,-27+t,a)&&t==2?_<13?
main(2,_+1,"%s %d %d\n"):9:16:t<0?t<-72?main(_,t,
"@n'+,#'/*{}w+/w#cdnr/+,{}r/*de}+,/*{*+,/w{%+,/w#q#n+,/#{l+,/n{n+,/+#n+,/#\
;#q#n+,/+k#;*+,/'r :'d*'3,}{w+K w'K:'+}e#';dq#'l \
q#'+d'K#!/+k#;q#'r}eKK#}w'r}eKK{nl]'/#;#q#n'){)#}w'){){nl]'/+#n';d}rw' i;#\

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class MessageDispatcher
  def initialize
    @observers = []
  end

  def register(observer)
    @observers << observer
  end

  def dispatch(message)

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#!/usr/bin/env ruby

class UnixProcess
  attr_reader :uid, :pid, :ppid, :cmd

  def initialize(uid:, pid:, ppid:, cmd:)
    @uid = uid
    @pid = pid
    @ppid = ppid
    @cmd = cmd

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#!/usr/bin/env ruby

class SayRepl
  attr_reader :voice

  def initialize(voice)
    @voice = voice
  end

  def go