Shubham Rath sr6033

A "prefix code" is a type of encoding mechanism ("code"). For something to be a prefix code, the entire set of possible encoded values ("codewords") must not contain any values that start with any other value in the set.

For example: [3, 11, 22] is a prefix code, because none of the values start with ("have a prefix of") any of the other values. However, [1, 12, 33] is not a prefix code, because one of the values (12) starts with another of the values (1).

Prefix codes are useful because, if you have a complete and accurate sequence of values, you can pick out each value without needing to know where one value starts and ends.

For example, let's say we have the following codewords: [1, 2, 33, 34, 50, 61]. And let's say that the sequence of numbers we've received looks like this:

1611333425012

Install Terminator (shell)

sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

Terminator should be setup as default now. Restart your terminal (shortcut: "Ctrl+Alt+T").

Install ZSH

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Using Dnsmasq with Ubuntu for VM web application testing

When running virtual machines under a Linux host system for testing web apps in various browsers (e.g. Internet Explorer), I found it rather tedious having to continually tweak the hosts file within each VM for the purpose of adding entries pointing back to the host machine's development web server address.

Instead the steps below will setup Dnsmasq on a Ubuntu 16.04LTS, 14.04LTS or 12.04LTS host machine for the purpose of serving both it's own DNS queries and that of virtual machine guests. Dnsmasq will parse the /etc/hosts file on your host machine where we will keep a single set of DNS entires to our test web application(s).

Method 1
- Ubuntu 16.04LTS / 14.04LTS
- Ubuntu 12.04LTS
Method 2
- Stop NetworkManager running it's own Dnsmasq

	#include <bits/stdc++.h>
	using namespace std;

	vector <vector <int>> g; // Graph vector
	vector <bool> v; // Visited nodes

	// Directed Graph
	void addEdge(int a, int b)
	{
	g[a].push_back(b);

	#include <bits/stdc++.h>
	using namespace std;

	int main()
	{
	int n;
	cin >> n;
	vector<int> arr(n);

	// Generating random numbers in a range of 0-100

	<!DOCTYPE html>
	<html>
	<head>
	<title>Instagram Gallery</title>
	<script src="https://unpkg.com/[email protected]/dist/vue.min.js"></script>
	<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
	<style type="text/css">
	:root{
	--color: #95e9ef;
	--background: #1f1f1f;

	#!/usr/bin/env bash

	echo "Enter you Name : (Optional, to configure Git)"
	read NAME

	echo "Enter your Email : (Optional, to configure Git)"
	read EMAIL

	echo "Give a name to your Computer : (Optional, to set Host Name)"
	read HOSTNAME

	#
	# Don't want to run PostgreSQL as a service? Want to manually start and stop it?
	# >> bundle exec rake rabbitmq:mac:start
	# >> bundle exec rake rabbitmq:mac:stop
	#

	namespace :rabbitmq do
	namespace :mac do

	desc "Starts a Mac brew installed RabbitMQ server."