Bulgarian visa number type c tickets 2 [duplicate]

This question already has an answer here:

  • With a Bulgarian double entry visa, can we go to Romania first?

    1 answer

  • Bulgaria visa type c number of tickets 2 [duplicate]

I am jordanian and I have bulgaria visa type c number of tickets 2 I want to book a flight from amman to bucharest Then return
If I enter Romania and return to Amman
Without entering Bulgaria
There is some problem

Design – email notification architecture – avoid duplicate emails

We are looking to develop an email notification system where emails can be scheduled daily and by the hour or can be sent in real time.

So there will be 2 apis mails:

– Real-time mail API: inserts requests directly in the queue.
– Massive mail API: saves the requests in the database so that they are sent later (since they are scheduled to be sent later). Then, the workers send this data from the database to the queue.

With the scenarios of sending emails through both APIs, we need a way to make sure that duplicate emails are not sent. What is the best way to make sure that duplicate emails are not sent?

I think that maybe we register all the requests asynchronously in a table in the database when calling both APIs (before sending the requests and before storing them in the database), at the beginning we validate whether the requests to send Emails are duplicates. Will it cause a performance problem? Do you recommend evaluating them before consuming them and generating metadata before sending them to the mail server?

Dynamic programming: selection of elements of two matrices without duplicate indexes to obtain the maximum sum

Given two matrices of length n, you have to choose exactly k values ​​of matrix 1 and n-k values ​​of the other matrix, so that the sum of these values ​​is maximum, with the restriction that if you choose a value of some index of any of the matrix, you can not choose from the same index of the second matrix.

I have encountered this type of question in many places, but I could never solve it, and I always have the intuition that it is a dynamic programming problem, but I can never prove it. I do not understand very well if there is a dynamic solution or not?

Penalty: What is the duplicate content and how can I avoid being penalized on my site?

Google's duplicate content webmaster guide defines duplicate content (for search engine optimization purposes) as "substantial content blocks within or across domains that completely match other content or are remarkably similar."

The Google guide continues to list the following as examples of duplicate content:

  • Discussion forums that can generate regular and simplified pages aimed at mobile devices
  • Store items displayed or linked through multiple different URLs
  • Versions only for web page printers


Search engines should penalize some instances of duplicate content that are designed to send spam to your search index, such as:

  • scraper sites that copy content in bulk
  • Simplistic spinning techniques for articles that generate "new" content by selectively replacing words in existing content.

When search engines find duplicate content, they can:

  • Penalize a whole site that contains duplicate content. (when spam)
  • Choose a page as a canonical source of content and reduce the priority or do not index the other page with duplication. (common)
  • Do not take any punitive action and index multiple copies of the content (rare)

Avoid internal duplication.

When asked about duplicate content, Google's Matt Cutts said it should only hurt him if it looks like spam, but many webmasters use the following techniques to avoid unnecessary duplication of content:

  • Make sure that the content is only accessible under a canonical URL
  • If your site should return the same content in several URLs (for example, for a "print view" page), specify a canonical URL manually with a link element in the header of the document
  • In cases where your site returns similar content based on parameters encoded in the URL (for example, sorting a product catalog), exclude URL parameters in Webmaster Tools.

Syndication of contents

Publishing content on your site that has been published elsewhere is called content syndication. Creating duplicate content through content syndication can be fine:

  • While you have permission to do it
  • You tell your users what the content is and where it comes from.
  • You link to an original source (a direct and deep link to the original content of the page with the copy, not just a link to the home page of the site where the original can be found)
  • Its users find it useful
  • It has something to add to that content, so users prefer to find that content on their site than elsewhere. (Comment or criticism for example.)
  • It also has enough original content on its site (at least 50% original, but ideally 80% original)

While Google does not penalize for each instance of duplicate content, even duplicate non-penalized content may not help you get visits:

  • You are competing with all the other copies that are out there
  • It is likely that Google prefers the original source of content and the most reliable copy of the content.

Google will penalize duplicate content posted on your website from other sources if:

  • It seems to be scraped or stolen (especially without attribution).
  • Users do not react well (especially when clicking on go back to Google after visiting your site).
  • There are so many copies available that there is no reason to send users to your copy.
  • Your copy is not the original, the most reliable or the most useful; and has no comments or criticism.
  • Your site does not have enough original content to balance all republished content.
  • Duplicate pages so often within your own site that Googlebot has trouble crawling the entire site.

Internationalization and Geo Targeting

Content localization is an area in which the duplication of content can be beneficial for SEO. It is perfectly fine to publish the same content in sites aimed at different countries that speak the same language. For example, you can have a site in the USA. UU., A site in the United Kingdom and a site in Australia, all with the same content.

With a site for each country, it is generally possible to rank better for users in that country. In addition, it is possible to specifically address users in each country with small differences in spelling, prices in the currency of the country or options for sending products. For more information on setting up geo-targeting websites, see How should I structure my URLs for SEO and localization?

Deal with content scrapers

Other sites that steal your content and republish it without permission can cause duplicate content problems for your site. Search engines work hard to ensure that it is difficult for scraper sites to benefit from duplication of content. If a scraping site is causing you problems, then the Google index site may be removed when you submit a DMCA request to Google

Government Root CA installed on the computer / browser and Man-In-The-Middle [duplicate]

This question already has an answer here:

  • Is there anything that prevents the NSA from becoming a root CA?

    4 answers

  • How can my employer be a man in the middle when I log in to Gmail? [duplicate]

    5 Answers

Some countries already have their CA government root installed on the computer / browsers. Is it possible for these countries to read emails from Google, etc., using Man-In-The-Middle or similar techniques?

Parameterize numeric fields III [duplicate]

This question is an exact duplicate of:

  • Parameterize numeric fields II

Leave $ X $ Be an integral scheme. Leave $ f: X rightarrow mathrm {Spec} ( mathbb {Q}) $ be a locally separated finite-type map (not necessarily quasi-compact).

Can it happen that for every kind of isomorphism? $ F $ of finite extensions of $ mathbb {Q} $ There is at least one closed point whose residue field is in $ F $? What is the simplest such $ f $? Can it be of relative dimension 1?

html – Remove duplicate elements according to the ID – MultiDimensional PHP Array

Good day,

I have a multi_dimensional matrix and I would like to remove the elements that have equal values.

I'm using PHP object oriented, with CodeIgniter, / /

The following is the following:
$ email = $ this-> Consulta_model-> searchValues ​​($ data);

                Here it returns the data of the bank.

foreach ($ email as $ key => $ each) {
$ data[$key] = array (
& # 39; column1 & # 39; => $ each-> column1,
& # 39; column2 & # 39; => $ each-> column2,
& # 39; column3 & # 39; => $ each-> column3,
& # 39; column4 & # 39; => $ each-> column4


$ output = $ this-> multi_unique ($ data);

threw out "

var_dump ($ output);

public function multi_unique ($ src) {
$ output = array_map ("unserialize"),
array_unique (array_map ("serialize", $ src)));

return $ output;

I tried calling a function to withdraw without success. My pure multidemensional matrix is ​​like this:

                                array (5) {
array (4) {
string (4) "id_1"
(19) "2019-05-15 13:35:10"
chain (10) "2019-06-15"
(31) "matheus@gmail.com"
array (4) {
string (4) "id_2"
(19) "2019-05-15 13:45:10"
(10) "2019-06-16"
(31) "gabriel@gmail.com"
array (4) {
string (4) "id_2"
(19) "2019-05-15 13:55:10"
(10) "2019-06-17"
(31) "gabriel@gmail.com"
array (4) {
string (4) "id_1"
(19) "2019-05-15 13:59:10"
(10) "2019-06-18"
(31) "matheus@gmail.com"
array (4) {
(4) "id_4"
(19) "2019-05-15 13:11:20"
(10) "2019-06-19"
(31) "rodrigo@gmail.com"

I need to check in all the arrays if column 4, the value of it is repeated, if it removes only 1. In the case above there are 2 matrices with 2 repeated columns, I would like to keep 2 matrices but with 1 column.

How to skip importing fonts for a duplicate item in Drupal 7?

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I use the single field assignment, but instead of blocking the import in CSV duplicates, it overwrites the data in Drupal and inserts the new value of the CSV file.

This is the default behavior with the unique title field assignment:

"IF the title is duplicated THEN, overwrite the old item in Drupal with the new item in the spreadsheet"

But I'm looking for this behavior:

"IF the title is duplicated, THEN skip the new element of the spreadsheet and keep the old original element in Drupal intact"

I have field sabotage, the field of the article and the field of the importer are configured as unique. Everything works fine, but in the imports of duplicate feeds, instead of avoiding the import of duplicate items, it overwrites the previous field and inserts the new duplicate …

My goal is that Drupal PREVENTS the duplicate field from being completed … in the same way if you try to manually enter a duplicate entry in the manual account assignment content, it shows an error and prevents you from submitting the form.

Is this possible without custom code? Maybe with the rules?

Can I use HL2 Assets in my free Godot game? [duplicate]

This question already has an answer here:

  • To what extent can one game legally resemble another?

    11 replies

I could not find some good textures for my Godot game, so I am looking forward to using the assets of Half-Life 2. I have HL2 in my library on Steam.

Can I use those assets in my game?

node.js – Socket sends duplicate messages to the client

I am configuring a web socket server with socket.io and it seems that messages are being sent at least twice. Sometimes even trice. (very rarely, even more than 4 times) Although they are never sent once. How should I configure my drivers or my client code so that each message is received exactly once all the time?

My client is in swift and my server in node.js. I am running Ubuntu 16.04 on the server itself.


// Here is an array of all connections to the server.
connections var = {};

o.sockets.on (& # 39; connection & # 39;, newConnection);

function newConnection (socket) {

socket.on (& # 39; add-user & # 39 ;, function (user) {

connections[user.id] = {
"socket": socket.id


socket.on (& # 39; chat message & # 39 ;, function (message) {

console.log (message);

yes (connections[message.receiver]) {

console.log ("Send to:" + connections[message.receiver].Plug);

// Here are some variants of the emit command. It seems that everyone does the same

//io.sockets.connected[connections[connections[conexiones[connections[message.receiver].Plug].emit ("chat message", message);
//io.to (Connections[message.receiver].socket) .emit ("chat message", message);

socket.broadcast.to (connections[message.receiver].socket) .emit ("chat message", message);

} else {
console.log ("Send push notification")


// Removing the socket when disconnecting.
socket.on (& # 39; disconnect & # 39 ;, function () {
console.log ("The disconnected client");
for (id of var in connections) {
yes (connectionshttps://stackoverflow.com/q/56524133.socket === socket.id) {
remove connectionshttps://stackoverflow.com/q/56524133;

The "console.log (message);" In the message handler, it is only called printed. That is the confusing part for me. If the controller is called twice, why is it only printed once? Still, in the controller in my swift code, the driver for the received messages is called several times.