| def sha256(data): | |
| bytes = "" | |
| h0 = 0x6a09e667 | |
| h1 = 0xbb67ae85 | |
| h2 = 0x3c6ef372 | |
| h3 = 0xa54ff53a | |
| h4 = 0x510e527f | |
| h5 = 0x9b05688c | |
| h6 = 0x1f83d9ab |
| from numpy import * | |
| from scipy.stats import beta | |
| class BetaBandit(object): | |
| def __init__(self, num_options=2, prior=(1.0,1.0)): | |
| self.trials = zeros(shape=(num_options,), dtype=int) | |
| self.successes = zeros(shape=(num_options,), dtype=int) | |
| self.num_options = num_options | |
| self.prior = prior |
In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:
http://techcrunch.com/2007/08/11/facebook-source-code-leaked/
It became a big deal:
http://www.techmeme.com/070812/p1#a070812p1
The two files are index.php (the homepage) and search.php (the search page)
