lava

#include <string>
#include <vector>
#include <iterator>
#include <fstream>
#include <iostream>

#include <GL/gl.h>
#include <GL/glext.h>
#include <SDL/SDL.h>

lava

\documentclass{exam}

\begin{document}

\begin{questions}

\section{Koordinatensysteme und Geometrie}

\titledquestion{Kameramodell}
Gegeben sei eine Kamera $C$ mit Projektionszentrum ${\mathbf{e}}$, Ziel-Vektor $\mathbf{z}$ und normalisiertem Up-Vektor $\mathbf{up}$. 

lava

require 'nokogiri'
require 'open-uri'
require 'watir-webdriver'

require './acm_issue_downloader.rb'
require './acm_base.rb'

#base class for all acm-specific html extraction functions
class ACMBase
	def extract_id(url)

lava

100
200
0 1 1 1
1 0 1 1
1 2 1 1
2 1 1 1
2 3 1 1
3 2 1 1
3 4 1 1
4 3 1 1

lava

def kalman_update(state_mean, state_cov, measurement, measurement_matrix, meas_cov):
	# meas_cov should be a matrix with the right dimensions
	statedim = state_mean.size
	x = reshape( atleast_2d(state_mean), (statedim,1) )
	C = atleast_2d( state_cov )

	H = atleast_2d(measurement_matrix)
	y = atleast_2d(np.array(measurement))

	innovation = y - dot(H,x)

lava

Hello, world!

Please explain in detail what will happen if the following program is executed:

#include <iostream>

int main() {
    std::cout << "Hello, world!" << std::endl;
}

lava

Nethack armor comparison

Imagine this totally hypothetical situation: You're in a boring meeting without internet, play a round of nethack as a rogue, and come across a dwarvish mithril-coat. Should you replace your current leather armor? On the one hand, mithril sounds pretty nifty. On the other hand, it seems a bit out-of-character for a rogue to wear full plate armor, so surely there are some good reasons to keep the leather?

Luckily, you are a professional developer, so you have a local copy of the games' source code.

lava

Relaxed Agent state recovery

# Problem

Most experienced mesos users will have encountered the following error message:

    E1103 18:30:03.451825 12204 slave.cpp:6302] EXIT with status 1: Failed to perform recovery: Incompatible agent info detected.
    ------------------------------------------------------------
    [...]
    ------------------------------------------------------------

lava

Writeup: minbashmaxfun

by lava & ntq

+=============================================================+
|                MINIMAL BASH - MAXIMAL FUN                   | 
|                                                             | 
|            Who needs regular characters anyway?             |
|                                                             | 
|         Supported characters: $ ( ) # ! { } < \ ' ,         |
| |

lava

# A turing machine simulator implemented in pure GNU Make.
# (written for HackoverCTF 2018 organised by cyclopropenylidene) 

blank =
space = $(blank) $(blank)

ascii-expand = \
  $(subst .,. ,\
  $(subst _,_ ,\
  $(subst 1,1 ,\