Developer only event at SXSW (code puzzle gets harder with more tweets) (hackerunderground.com)

Not going to SXSW, but...

     tr ',' '\n' | sort -n | uniq -d

  asort($data);
  $duplicate = function ($val) use (&$data) {
    $count = 0;
    foreach ($data as $i => $entry)
      if ($val == $entry) $count++;
    return $count;
  };

  foreach ($data as $v)
    if (($count = $duplicate($v)) > 1) {
      printf("%d, Count %d\n", $v, $count);
      break;
    }

    .sort(function(a,b){if(a==b){throw a;}return a-b;});

  JSON.parse(p.innerHTML.split('\n')[2])

  x = File.read('puzle.txt')
  y = x.split(/ \w /)
  module Enumerable
    def dups
      inject({}) {|h,v| h[v]=h[v].to_i+1; h}.reject{|k,v| v==1}.keys
     end
  end
  d = y.dups
  require 'mathn'
  dp = []
  d.each {|z| z = z.to_i; dp << z if z.prime?}
  dp

So just to summarize:

Elite 'hacker' group claims to hate marketing guru/bullshit tactics, then proceeds to ply the hell out of everyone to spread their concept in a viral Twitter hashtag manner.

Granted, I totally just did it because that puzzle was way too easy, but c'mon now.

I wonder if having to manually launch the puzzles show() method is part of the puzzle itself or just a bug. (Checked with Chrome 9 and Firefox 3).

I'm also throwing a hacker only event.

It's called stay home and get shit done.

Solved the puzzle with a couple lines of Python ;) Unfortunately, I won't be attending SXSW this year. Boo. If someone can solve that puzzle, I'll teach you all the hacks I know.

Open Matlab --> answer = mode(Copy --> Paste)

solved it with no code by copying and opening as csv, transpose paste, sort, scroll to match column number with number, check for mismatch, bingo!

Text editor, break into lines, numeric sort, find the line where the count goes out of sync with the line number.

C#: data.GroupBy(i => i).Where(g => g.Count() > 1) .Select(g => g.Key) .ToList().ForEach(x => Console.WriteLine(x));

node.js + underscore.js

var numbers = [];

require("./underscore-min.js"); var dupe = _.reject(numbers, function(number) { return _.lastIndexOf(numbers, number) == _.indexOf(numbers, number); }); console.log(dupe);

The ways everyone solves the puzzle are much more interesting than the puzzle itself. I made a mysql table with one column set as the primary key and did an insert.

This reminds me of this awesome thread on Sitepoint (5 pages of different ways to output the numbers 0-9): http://www.sitepoint.com/forums/php-34/write-loop-php-prints...

Open up web inspector.

var arr = (paste)

arr.sort()

for(var i = 0;i<arr.length;i++){if(arr[i+1] == arr[i]){console.log(arr[i])}}

  function find_dupe(a){ if(a.length==0) return -1; 
  if (a[0]==a[1]) return a[0]; else return find_dupe(a.slice(1,a.length)); }

   $data = "http://hackerunderground.com/solution/blank;
   $ch = curl_init($data); 
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
   $base = curl_exec($ch);

   for($i=0;$i<10000;$i++)
   {
   $data = "http://hackerunderground.com/solution/$i;
   $ch = curl_init($data); 
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
   $response = curl_exec($ch); 
   if($response != $base)
   {
   echo $i;
   }
   }

I like my solution best. Everyone should try it!

Well now they are asking for Prime duplicates, and if they keep it going fo the next week, you could end up with some complex puzzles.

What day is the event?

I'm learning Python (3) w/ MIT OCW and here's my solution (http://pastebin.com/EQevWQWC). def dupefinder(lister): '''Function to find first duplicate in a list; Variable to pass to this function should be of type "list" ''' listerdupe = sorted(lister) for index,item in enumerate(listerdupe): if item == listerdupe[index+1]: print('First duplicate number is {0}'.format(item)) return item

Since they changed the puzzle to now require finding the prime duplicate number.

Is is each number delimited by a (random?) alphabetic letter? Is this to make parsing into Excel/an array harder?

Also, even the new 'harder' puzzle is easy to solve in Excel. Maybe that isn't a bad thing, however.

the lemons of this string when you take out all of the spaces and align the words end to end and prefix it with the word win