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plugins – How to find where an image is used by its url

I'm trying to optimize on a third-party wordpress, and I've found that some images from a cdn actually take a while to load, so I would like to modify the post / page / etc where it is used to point to the same server instead, but I'm not sure exactly what type of element this image is used in, how can I do that? if it is worth something, the page seems to use a theme called DIVI

Thank you.

spreadsheet function – Spreadsheet formula to find all matching criteria then submit from cell in row

I have a Google Sheets document arranged as follows:

Sheet 1:

A        | B   | C
tomatoes | 10  | **SUM**

Sheet 2:

A                   | B        | C
2019-01-01T15:00:00 | tomatoes | 2

On sheet 1, column C, I would like the sum of all the rows on sheet 2 where column B of sheet 2 corresponds to column A of sheet 1, subtracted from column B. of sheet 1

Imagine where sheet 2 had 3 lines identical to those above, sheet 1 would then look like:

Sheet 1:

A        | B   | C
tomatoes | 10  | 4 (10 - 6 = 4)

Linux Use Find with rename = No such file or directory

I want to delete the dot from the filename in the subdirectory. I use rename and find

 find . -type f -name '*.avi' -exec  rename   's/.(?=(^.)*.)/ /g' {} ;

The command finds work alone.
The command rename the job only.

But when I use the two together, I get an error:

No such file or directory 

Can you help me?

Will the Liberas be mad at me if they find out that I am going to vote for Trump because they have become completely socialist?

If you are an average person (with a brain but may not want to make waves), smile politely and nod while your Democratic friends are speaking, then secretly vote Trump in 2020 in the voting booth. Right now, you can vote for the right man; Asset; and no one can intimidate you.

If you are a brave heroic person, not only can you vote Trump, but you can try to speak kindly and persuasively to your friends and loved ones in the meantime.

I think Trump will win, but we must not take it for granted; Democrats have higher numbers, we real Americans will only win because of our dedication to civic duty and making sure we get a record number, like 85% +!

java – Take an array of strings and find two words that are anagrams of each other

Seeking advice on whether it can be improved in terms of efficiency and speed, one should work on large data sets.

public class Anagrams {

    public static boolean isAnagram(String str1, String str2) {  
    String s1 = str1.replaceAll("\s", "");  
    String s2 = str2.replaceAll("\s", "");  
    boolean status = true;  
    if (s1.length() != s2.length()) {  
        status = false;  
    } else {  
        char() ArrayS1 = s1.toLowerCase().toCharArray();  
        char() ArrayS2 = s2.toLowerCase().toCharArray();  
        status = Arrays.equals(ArrayS1, ArrayS2);  
    if (status) {  
        return true; 
    } else {  
        return false; 

    public static String searchAnagram(String() array)

        String anagramsList = "";
        Arrays.sort(array, (str1, str2) -> str1.length() - str2.length());
        for(int i=0;i<(array.length -1); i++)
            int j=0;
            while(array(i).length() == array(i+j).length())

                    anagramsList += (array(i) + " " + array(i+j) + ", ");
                    System.out.println(array(i) + " " + array(i+j) + ", ");

        if(anagramsList == "")
            anagramsList = "No anagrams foud";
        return anagramsList;


graphs – Find the minimum path from S to T which visits all the vertices

So I have a complete and directed graph with weights.
I want to find the shortest path from S to T which visits all the other vertices of the graph at least once.
Another important piece of information, I could have negative weights, but I don't have negative cycles.

I found this problem very close to the seller's problem but soon enough I discovered that it would be of no help. Indeed, the seller's problem does not define the top of the destination.

Any ideas will be highly appreciated.

Algebraic topology – How can I actually find the universal coverage space of $ S ^ 1 $ using the construction of path classes?

according to Introduction to topological collectors (John M. Lee, p. 298), one can easily construct universal coverage of a given topological space $ X $ by choosing a point $ x_0 $ randomly, then considering all possible paths from this base point to any other point in space. If we call this set $ A (X; x_0) $, then our universal coverage space would be $ A (X; x_0) / sim $, where the symbol $ sim $ represents the path equivalence relation.

But my question is: how do you actually use this construction in practice? The proof of this theorem rests on giving the cover space a topology in a fairly unintuitive way, and I'm afraid this is the trickiest part when trying to use.

Suppose I want to find the universal coverage space of $ S ^ 1 $ (forgetting for a moment that we already know that this is $ mathbb {R} $): if I choose a point $ x_0 in S ^ 1 $, then I can say that two paths starting from $ x_0 $ and ending at different points in the circle cannot be equivalent, and the same is true for two paths that end at the same point but after going around the circle a different number of times. This gives me a rough idea that the cover space should have "the same number of dots" as $ mathbb {R} $… but how can I show his $ mathbb {R} $ using only this construction?

projection – I have an ellipsoid equation given below. I want to find $ pm Delta_c1 $, $ pm Delta_c2 $, $ pm Delta_c3 $ around the point (81.32,10.62,17.17)


425182.22 + 64.14985 c1 ^ 2 + 2.176 c2 ^ 2 + c2 (-1.013 * 10 ^ -13-0.006 c3) + c1 (-10442.15-0.567c2 + 0.863846077 c3) -70.3549202 c3 + 0.0052366 c3 ^ 2 == 1, { c1,81,81.7}, {c2,9,12}, {c3, -5,40}, AxesLavel -> {c1, c2, c3}, ContourStyle-> Directive (Orange, Opacity (0.7)), LabelStyle- > Directive (Black, 15), Mesh -> None), Graphics3D ({Black, PointSize (0,015), Point ({81.32,10.62,17.17})})))

Find a diffeomorphism $ A $ on $ B $

Find a diffeomorphism $ A $ sure $ B $:
$$ A = left {(x, y) in mathbb R ^ 2: x> 0, y> 0, xy <1 right } $$
$$ B = left {(x, y) in mathbb R ^ 2: 1 <x ^ 2 + y ^ 2<4, y>0 right } $$

I have absolutely no idea how to handle such tasks, as I don't understand diffeomorphism. Could someone give me some advice?