lancejpollard

Sets =~ Arrays

A set is basically an array of unique items.

(A,B)

Ordered set.

[1, 2] != [2, 1]

fogus

class Lisp
  def initialize
    @env = { 
      :label => lambda { |(name,val), _| @env[name] = val },
      :quote => lambda { |sexpr, _| sexpr[0] },
      :car   => lambda { |(list), _| list[0] },
      :cdr   => lambda { |(list), _| list.drop 1 },
      :cons  => lambda { |(e,cell), _| [e] + cell },
      :eq    => lambda { |(l,r), _| l == r },
      :if    => lambda { |(cond, thn, els), ctx| eval(cond, ctx) ? eval(thn, ctx) : eval(els, ctx) },

panicsteve

Dear soon-to-be-former user,

We've got some fantastic news!  Well, it's great news for us anyway.  You, on 
the other hand, are fucked.

We've just been acquired by:

[ ] Facebook
[ ] Google
[ ] Twitter

antirez

Description of AHF1 algorithm:

Initialize the four bytes H[0], H[1], H[2], H[3] to respectively 8D CA 2E 35
Initialize IDX to 0

For each byte B in the string to hash:

    TARGET = (B XOR H[IDX]) MOD 4

    H[TARGET] = H[TARGET] XOR B

dchest

/* Written by Dmitry Chestnykh. Public domain. */
#include <err.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <openssl/blowfish.h>
#include <openssl/lhash.h>

/* Encryption and decryption */