## Can’t create Variation label for SharePoint site collection

Good day,

I have some problem with creating multi-language SharePoint site. I have site collection with “SharePoint Server Publishing Infrastructure enabled”. I follow this article here.

Following the article (Create the source variation site) I go to Site Collection Administration, click Variation labels. On the Variations Label page, I click New Label. I try to select Location field Value.

In the article was written “It they will be at the top level of the site collection, just type a forward slash (/)”

I type “/” in the Location field and get the error “The root site of the options should be the publication site”. I can’t understand, what is wrong if “SharePoint Server Publishing Infrastructure” option is enabled. “SharePoint Server Publishing” is enabled too.

## Principal variation search: how to keep track of the best move

I have a Java implementation of the Principal Variation Search algorithm, and it looks like that:

public final class PrincipalVariationSearchGameEngine          <S extends AbstractState<S, P>,          P extends Enum<P>>             extends AbstractGameEngine<S, P> {      public PrincipalVariationSearchGameEngine(             EvaluatorFunction<S> evaluatorFunction,             int depth) {         super(evaluatorFunction, depth, Integer.MAX_VALUE);     }      @Override     public S makePly(S state,                       P minimizingPlayer,                       P maximizingPlayer,                       P initialPlayer) {         state.setDepth(depth);          return makePlyImplTopmost(state,                                   depth,                                   Double.NEGATIVE_INFINITY,                                   Double.POSITIVE_INFINITY,                                   initialPlayer == minimizingPlayer ? -1 : 1);     }      /**      * Performs the search directly under the root node denoted by       * {@code state].      *       * @param state the root state of the game tree to search.      * @param depth the total depth of the search.      * @param alpha the alpha cutoff value.      * @param beta  the beta cutoff value.      * @param color the color. -1 for minimizing player, +1 for maximizing      *              player.      * @return the game board after optimal move from {@code state}.      */     private S makePlyImplTopmost(S state,                                  int depth,                                  double alpha,                                  double beta,                                  int color) {         boolean firstChild = true;         S bestState = null;         double tentativeScore = color == -1 ?                                 Double.POSITIVE_INFINITY :                                 Double.NEGATIVE_INFINITY;          for (S child : state.children()) {             double score;              if (firstChild) {                 firstChild = false;                 score = -makePlyImpl(child,                                       depth - 1,                                       -beta,                                       -alpha,                                      -color);                 bestState = child;                 tentativeScore = score;             } else {                 score = -makePlyImpl(child,                                       depth - 1,                                       -alpha - 1.0,                                       -alpha,                                      -color);                  if (color == -1) {                     if (tentativeScore > score) {                         tentativeScore = score;                         bestState = child;                     }                 } else {                     if (tentativeScore < score) {                         tentativeScore = score;                         bestState = child;                     }                 }                  if (alpha < score && score < beta) {                     score = -makePlyImpl(child,                                           depth - 1,                                          -beta,                                          -score,                                          -color);                      if (color == -1) {                         if (tentativeScore > score) {                             tentativeScore = score;                             bestState = child;                         }                     } else {                         if (tentativeScore < score) {                             tentativeScore = score;                             bestState = child;                         }                     }                 }             }              if (alpha < score) {                 alpha = score;             }              if (alpha >= beta) {                 break;             }         }          return bestState;     }      private double makePlyImpl(S state,                                int depth,                                double alpha,                                double beta,                                int color) {         if (state.getDepth() == 0                  || state.checkVictory() != null                 || state.isTerminal()) {             return color * evaluatorFunction.evaluate(state);         }          boolean firstChild = true;          for (S child : state.children()) {             double score;              if (firstChild) {                 firstChild = false;                 score = -makePlyImpl(child,                                       depth - 1,                                       -beta,                                       -alpha,                                      -color);             } else {                 score = -makePlyImpl(child,                                       depth - 1,                                       -alpha - 1.0,                                       -alpha,                                      -color);                  if (alpha < score && score < beta) {                     score = -makePlyImpl(child,                                           depth - 1,                                          -beta,                                          -score,                                          -color);                 }             }              alpha = Math.max(alpha, score);              if (alpha >= beta) {                 break;             }         }          return alpha;     } } 

This, however, does not work since it returns suboptimal (next) moves. I believe that the culprit is this if statement:

if (color == -1) {     if (tentativeScore > score) {         tentativeScore = score;         bestState = child;     } } else {     if (tentativeScore < score) {         tentativeScore = score;         bestState = child;     } } 

## How to gray out options in dropdown when certain variation is choosen instead of dissappearing

I am looking for a way to gray out the options in the dropdown of a woocommerce product page. Currently i have 520 variations for a product. Example below.

Here is the link to the product page: https://blueribbonmillwork.ca/product/shaker/

So essentially it works as needed, however i wanted to know if there is a way to still show all the options for each dropdown, which would be grayed out, and the available options for a particular variation would still show as is now.

Like if i were to choose “Appliance Bases” under the “Cabinet Categories” drop-down, all the options for “Description” and “Dimensions” would still show, but be grayed out and not available to click, instead of just disappearing when it is filtered.

Any help would be appreciated:)

Thanks

## Is this variation of set-cover NP-hard to approximate?

The classic set-cover problem is described as follows:

Let $$S = \{s_1, …, s_n\}$$ be a target set, and let $$\Lambda = \{A_1, > …, A_m: A_i \subset S\}$$ be a collection of subsets of $$S$$. The objective is to find some cover $$C \subset \Lambda$$ such that $$\cup_{A\in C}A = S$$ and $$|C|$$ is minimized. That is, find the minimum number of $$A$$‘s needed to cover every element of $$S$$.

The variation we will consider has two key alterations:

1. Rather than finding some cover $$C$$ such that $$|C|$$ is minimized, we want to cover as much of $$S$$ as possible, given some budget $$k$$. That is, let $$F\subset S$$ be the elements that are covered by $$C$$, our objective is to maximize $$\big|F \cap S\big|$$ such that $$|C| \leq k$$.

2. Rather than considering an element $$s \in S$$ covered when $$s$$ appears in at least one $$A\in C$$, we require that $$s$$ show up in 2 distinct $$A$$‘s to be considered covered. (Any multiple is also interesting, even heterogeneous ones for each $$s\in S$$, but for now 2 is good enough).

So far I can show that it is an NP optimization (reduction from set-cover), and that a $$n-$$approximation exists by simply looking any element $$s$$ that appears in some $$A_i$$ and $$A_j$$ and then selecting $$C = \{A_i, A_j\}$$, but this is a rather unsatisfying approximation.

Is this variation NP-hard to approximate to a constant factor?

## Gas Station problem : Fixed path variation

Given a set of cities where you need a certain amount of fuel to travel from one city to another, each city has a different fuel price and you can only load K amount of fuel to the vehicle. The path is fixed (ie) you have to go from C1 to Cn through C2, C3,.. and so on. The objective is to fill fuel in these cities in such a way the spendings on fuel is minimized. I thought about storing the minimum prices within a window whose requirements add up to K and then find the minimum cost required to traverse. I’m not sure how it holds up or is it even right in the first place. What if being greedy and filling up fuel to reach the city empty till you reach the closest city with cheaper fuel, not the optimal solution? How do i prove that it is?

## Lookup columns referencing Source variation site Ids in sharepoint 2016

I am using Variations feature in Sharepoint 2016. I have a lookup column for a list in my Source variation site. Now I am popagating that list in my target variation site. The list is getting propagated but the problem I am facing is that the lookup items for that column in Target variation site are still referring to lookup list from source variation site.

## Is this variation of the assignment problem NP-hard, and does it have a name?

I’m trying to solve a problem very similar to the assignment problem, with a few twists.

## product options variation

Maybe someone will tell you, maybe there is a module or how to implement options with a link to another product. Example: https://comfy.ua/smartfon-samsung-a305-galaxy-a30-4-64gb-black.html

## Configurable product on sale have an error on variation price

When I change product variation on dropdown, the full price of that product is not loaded, it continues to show the price of the default configurable product. I do not know why this error happens and even with the standard magento files, this error occurs.

It's ok

Don't work

Price that should show

## Cubic space reduction variation of PSPACE-COMPLETE(Theoretical)

i’ve been wondering:

if we change the definition of a PSPACE-COMPLETE definition to the following: A language B will be called PSPACE-COMPLETE if:

• for each language A in PSPACE: $$A \leq _{CS} B$$
• language B belongs to PSPACE

are there any PSPACE-COMPLETE languages by that definiton?

(note: if a language A can be cubical space reducted to language B, meaning that if there exists a reduction mapping of A to B that can be calculated in a cubical space, we’ll denote $$A \leq _{CS} B$$, meaning that if there’s a determinstic turing machine M, with one tape, that upon input a word w, it uses $$O(|w|^3)$$ space and upon completion on its tape written the word f(w)).

it is quite confusing for me, since a pspace-complete is a problem that can be solved using a polynomial space in relation to the input, and that every problem that can be solved in polynomial space be mapped(transformed) to it, but i am really not sure because of the $$O(|w|^3)$$ requirement.