advent-of-code-12.html

   1 <!DOCTYPE html>
   2 <html lang="en-us">
   3 <head>
   4 <meta charset="utf-8"/>
   5 <title>Day 12 - Advent of Code</title>
   6 <!--[if lt IE 9]><script src="/static/html5.js"></script><![endif]-->
   7 <link href='//fonts.googleapis.com/css?family=Source+Code+Pro:300&subset=latin,latin-ext' rel='stylesheet' type='text/css'>
   8 <link rel="stylesheet" type="text/css" href="/static/style.css?3"/>
   9 <link rel="shortcut icon" href="/favicon.ico?2"/>
  10 </head><!--
  11
  12
  13
  14
  15 Oh, hello!  Funny seeing you here.
  16
  17 I appreciate your enthusiasm, but you aren't going to find much down here.
  18 There certainly aren't clues to any of the puzzles.  You do risk spoiling a few
  19 surprises for yourself, though.  Best to play the normal way and discover
  20 everything as it was intended, I think.  The best surprises don't even appear
  21 in the source until you unlock them for real.
  22
  23 Please be careful with automated requests; I'm not Google, and I can only take
  24 so much traffic.  Please be considerate so that everyone gets to play.
  25
  26 If you're curious about how Advent of Code works, it's running on some custom
  27 Perl code. Other than a few integrations (auth, analytics, ads, social media),
  28 I built the whole thing myself, including the design, animations, prose, and
  29 all of the puzzles.
  30
  31 The puzzles probably took the longest; the easiest ones were around 45 minutes
  32 each, but the harder ones took 2-3 hours, some even longer than that. A lot of
  33 effort went into building this thing - I hope you're enjoying playing it as
  34 much as I enjoyed making it for you!
  35
  36 If you'd like to hang out, I'm @ericwastl on Twitter.
  37
  38 - Eric Wastl
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89 -->
  90 <body>
  91 <header><h1><a href="/">Advent of Code</a></h1><div class="user">Neil Smith <span class="star-count">26*</span></div><nav><ul><li><a href="/about">[About]</a></li><li><a href="/stats">[Stats]</a></li><li><a href="/leaderboard">[Leaderboard]</a></li><li><a href="/settings">[Settings]</a></li><li><a href="/auth/logout">[Log out]</a></li></ul></nav></header>
  92
  93 <div id="ad">
  94 <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
  95 <!-- Advent of Code Wide Skyscraper -->
  96 <ins class="adsbygoogle"
  97      style="display:inline-block;width:160px;height:600px"
  98      data-ad-client="ca-pub-9420604735624631"
  99      data-ad-slot="8014013294"></ins>
 100 <script>
 101 (adsbygoogle = window.adsbygoogle || []).push({});
 102 </script>
 103 </div><!--/ad-->
 104
 105 <main>
 106 <article class="day-desc"><h2>--- Day 12: JSAbacusFramework.io ---</h2><p>Santa's Accounting-Elves need help balancing the books after a recent order.  Unfortunately, their accounting software uses a peculiar storage format.  That's where you come in.</p>
 107 <p>They have a <a href="http://json.org/">JSON</a> document which contains a variety of things: arrays (<code>[1,2,3]</code>), objects (<code>{"a":1, "b":2}</code>), numbers, and strings.  Your first job is to simply find all of the <em>numbers</em> throughout the document and add them together.</p>
 108 <p>For example:</p>
 109 <ul>
 110 <li><code>[1,2,3]</code> and <code>{"a":2,"b":4}</code> both have a sum of <code>6</code>.</li>
 111 <li><code>[[[3]]]</code> and <code>{"a":{"b":4},"c":-1}</code> both have a sum of <code>3</code>.</li>
 112 <li><code>{"a":[-1,1]}</code> and <code>[-1,{"a":1}]</code> both have a sum of <code>0</code>.</li>
 113 <li><code>[]</code> and <code>{}</code> both have a sum of <code>0</code>.</li>
 114 </ul>
 115 <p>You will not <span title="Nor are you likely to be eaten by a grue... during *this* puzzle, anyway.">encounter</span> any strings containing numbers.</p>
 116 <p>What is the <em>sum of all numbers</em> in the document?</p>
 117 </article>
 118 <p>Your puzzle answer was <code>191164</code>.</p><article class="day-desc"><h2>--- Part Two ---</h2><p>Uh oh - the Accounting-Elves have realized that they double-counted everything <em>red</em>.</p>
 119 <p>Ignore any object (and all of its children) which has any property with the value <code>"red"</code>.  Do this only for objects (<code>{...}</code>), not arrays (<code>[...]</code>).</p>
 120 <ul>
 121 <li><code>[1,2,3]</code> still has a sum of <code>6</code>.</li>
 122 <li><code>[1,{"c":"red","b":2},3]</code> now has a sum of <code>4</code>, because the middle object is ignored.</li>
 123 <li><code>{"d":"red","e":[1,2,3,4],"f":5}</code> now has a sum of <code>0</code>, because the entire structure is ignored.</li>
 124 <li><code>[1,"red",5]</code> has a sum of <code>6</code>, because <code>"red"</code> in an array has no effect.</li>
 125 </ul>
 126 </article>
 127 <p>Your puzzle answer was <code>87842</code>.</p><p class="day-success">Both parts of this puzzle are complete! They provide two gold stars: **</p>
 128 <p>At this point, you should <a href="/">return to your advent calendar</a> and try another puzzle.</p>
 129 <p>If you still want to see it, you can <a href="/day/12/input" target="_blank">get your puzzle input</a>.</p>
 130 <p>You can also <span class="share">[Share<span class="share-content">on
 131   <a href="https://twitter.com/intent/tweet?text=I%27ve+completed+%22JSAbacusFramework%2Eio%22+%2D+Day+12+%2D+Advent+of+Code&amp;url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12&amp;related=ericwastl&amp;hashtags=AdventOfCode" target="_blank">Twitter</a>
 132   <a href="https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12" target="_blank">Google+</a>
 133   <a href="http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12&amp;title=I%27ve+completed+%22JSAbacusFramework%2Eio%22+%2D+Day+12+%2D+Advent+of+Code" target="_blank">Reddit</a
 134 ></span>]</span>
 135  this puzzle.</p>
 136 </main>
 137
 138 <!-- ga -->
 139 <script>
 140 (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
 141 (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
 142 m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
 143 })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
 144 ga('create', 'UA-69522494-1', 'auto');
 145 ga('send', 'pageview');
 146 </script>
 147 <!-- /ga -->
 148 </body>
 149 </html>