outro56

#!/usr/bin/env bash

echo "Provisioning virtual machine..."

sudo apt-get update

sudo apt-get install -y python-software properties
sudo apt-get install -y software-properties-common
sudo add-apt-repository -y ppa:webupd8team/java

outro56

# always list in long format
alias ls='ls -la --color'
alias clear=cls

# set dynamic prompt and window/tab title
PS1='\[\e]0;${PWD##*/}\a\]\n'  # set window title
#PS1="$PS1"'\u@\h '            # user@host<space>
PS1="$PS1"'\[\033[32m\]'       # change color
PS1="$PS1"'\w'                 # current working directory
if test -z "$WINELOADERNOEXEC"

outro56

//Find the top X frequent numbers in a stream 
// http://www.cs.berkeley.edu/~satishr/cs270/sp11/rough-notes/Streaming-two.pdf

// Returns the top numbers k and their frequencies in the set
// Complexity:
//    space = O(k)
//    time = O(N)
map<int, int> getFreq(k, Set) {
    A = map<int, int>
    for (k : getTop(k, Set) {

outro56

--===================================================
--=  Niklas Frykholm 
-- basically if user tries to create global variable
-- the system will not let them!!
-- call GLOBAL_lock(_G)
--
--===================================================
function GLOBAL_lock(t)
  local mt = getmetatable(t) or {}
  mt.__newindex = lock_new_index

outro56

1. Check if a number is even or odd 
An integer number N is even if its least significant bit is 0 otherwise it is odd

N AND 1

2. Divide by 2
Given an integer number N you can divide it by 2 by shifting all the bits to the right with one position.

N >> 1 

outro56

// Copied from
// http://stackoverflow.com/questions/7956167/how-can-i-quickly-read-bytes-from-a-memory-mapped-file-in-net

public static MemoryMapppedIOExtensions
{
    public unsafe byte[] ReadBytesFast(this MemoryMappedViewAccessor view, int offset, int num)
    {
        try 
        {
            byte[] arr = new byte[num];

outro56

stop all containers:
docker kill $(docker ps -q)

remove all containers
docker rm $(docker ps -a -q)

remove all docker images
docker rmi $(docker images -q)

outro56

local function clone_function(fn)
  local dumped = string.dump(fn)
  local cloned = loadstring(dumped)
  local i = 1
  while true do
    local name = debug.getupvalue(fn, i)
    if not name then
      break
    end
    debug.upvaluejoin(cloned, i, fn, i)

outro56

function eval(num1, operator, num2)
    if operator == '+' then
        return num1 + num2
    elseif operator == '-' then
        return num1 - num2
    elseif operator == '*' then
        return num1 * num2
    elseif operator == '/' then
        return num1 / num2
    else

outro56

template<typename T, typename U>
using assign_expression = decltype(std::declval<T&>() = std::declval<U&>());

template<typename T, typename U>
constexpr bool is_assignable = is_detected<assign_expression, T, U>;