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#!/usr/bin/env python2 | |
import BaseHTTPServer | |
import SimpleHTTPServer | |
import SocketServer | |
import socket | |
import ssl | |
import threading | |
import time | |
from os.path import expanduser |
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#!/usr/bin/swipl -f -q | |
:- initialization main. | |
% _ 1 | |
% |_| 234 | |
% |_| 567 | |
% _ _ _ _ _ _ _ _ | |
% | _| _||_||_ |_ ||_||_|| | | |
% ||_ _| | _||_| ||_| _||_| |
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import sys | |
import requests | |
URL = 'https://eventphone.de/guru2/phonebook?event=34C3&s=&page=1&format=json' | |
patterns = { | |
'doubled': lambda x: x[0] == x[1] and x[2] == x[3], | |
'alternate': lambda x: x[0] == x[2] and x[1] == x[3], | |
'end ten': lambda x: x[0] == x[1] and x[3] == '0', | |
'middle same': lambda x: x[1] == x[2], |
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⍝ An example board, the 4x4 reshape of a 16-vector | |
board ← 4 4 ⍴ 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0: | |
board | |
0 1 0 0 | |
0 1 0 0 | |
0 0 0 0 | |
0 0 0 0 |
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:- use_module(library(clpfd)). % grab some matrix functions | |
% Herein we present facts about boards. | |
% Given these facts, the user can consult Prolog for interesting | |
% inferences based on these facts. | |
% Example consultation: | |
% | |
% › swipl facts.pl | |
% Welcome to SWI-Prolog (threaded, 64 bits, version 7.6.1) |
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⍝ extract only the parentheses from the character array ⍵ | |
⍝ | |
⍝ parens 'aa(bb)cc' | |
⍝ '()' | |
parens ← {(⍵∊'()')/⍵} | |
⍝ from a character array containing only '(' and ')', | |
⍝ map '(' to 1, and ')' to ¯1 | |
⍝ | |
⍝ open_close '()' |
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defmodule Runlength do | |
defp encode([], cur_char, n, cur_encoded), do: "#{cur_encoded}#{n}#{<<cur_char>>}" | |
defp encode([h | tail], cur_char, n, cur_encoded) do | |
case h do | |
^cur_char -> encode tail, h, n + 1, cur_encoded | |
_ -> encode tail, h, 1 , "#{cur_encoded}#{n}#{<<cur_char>>}" | |
end | |
end | |
def encode(string) do |
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import sys | |
infile = sys.argv[1] | |
with open(infile, 'r') as f: | |
triples = (line.split(',') for line in f) | |
GRADES = [(int(t[1]), int(t[2])) for t in triples] | |
total_credits = sum(credits for (credits, _) in GRADES) |
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⍝ A rotation matrix, rotates coordinates ⍵ rads | |
rotate ← {3 3⍴((2○⍵)(-1○⍵)0(1○⍵)(2○⍵)0 0 0 1)} | |
⍝ A translation matrix, displaces coordinates ⍵ | |
⍝ steps downward (moves us ⍵ steps north) | |
translate ← {3 3⍴(1 0(-⍵)0 1 0 0 0 1)} | |
⍝ Lookup function to convert 'L' and 'R' to | |
⍝ rotation angles | |
pi ← ○1 |
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from numpy import sin, cos, array, pi | |
from operator import matmul | |
from functools import reduce | |
def move(theta, s): | |
"""Generate a translation and rotation matrix from a given angle theta | |
and displacement s. The transformation rotates the whole coordinate | |
system either left or right, then moves us `s` steps north | |
Given a vector v = [ x y 1 ], and a tranformation matrix A, |
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