Riddle: The Square Puzzle

Last couple of days, I have refrained myself from master's studies and have been focusing on this (seemingly simple) puzzle: There is this 10*10 grid which constitutes a square of 100 available...

Using union and order by clause in mysql

I want to use order by with union in mysql query. I am fetching different types of record based on different criteria from a table based on distance for a search on my site. The first select query...

Regex: Extracting readable (non-code) text and URLs from HTML documents

I am creating an application that will take a URL as input, retrieve the page's html content off the web and extract everything that isn't contained in a tag. In other words, the textual content...

OpenGL ES depth buffer android, can't get to work

I'm unable to get the depth buffer working correctly on Android OpenGL ES 2.0. Regardless of what I do, the objects are always render in the order provided and completely ignore the depth...

CMake: add dependency to add_custom_command dynamically

I have a CMake project with many subprojects. Each of them can use a function I provide to generate a small text file with some certain information (by calling add_custom_command). At the final...

How to copy a java.util.List into another java.util.List

I have a List<SomeBean> that is populated from a Web Service. I want to copy/clone the contents of that list into an empty list of the same type. A Google search for copying a list suggested me to...

Make a ODBC connection from a delphi-7 application throu ADOConnectionstring

Background : Application written in Delphi-7 or -6 (have search through the .exe file). Called Sigmanest. I have moved to new server and that's left is SigmaNest database running under SQL server....

Access 2007 to 2010 Conversion Compile Error: User-defined type not defined

I recently converted (exported/imported) a 2007 Access file to 2010. Everything works fine except one form. I keep getting the error: Compile error: User-defined type not defined I tried adding...

How to move sidebar to the left in shop pages?

I am using woocommerce for the first time and have searched for answers to this question for hours now. Found none. I'm exhausted and really grateful if someone wishes to help out. I am using...

Add/remove columns of a table - code maintenance / optimisation

What is the best way to maintain code of a big project? Let's say you have 1000 stored procedures, and you have to add a new column to a table (or remove) There might be 1-2 or 30 stored...

Is there a way in AngularJS to react on model changes without using $watch?

I'm implementing a simple spinner control in AngularJS and I want to react both on user input and changes from +/- buttons. Here is my HTML: <input type='button' ng-click="MyProperty = MyProperty...

In clear terms what is an ArrayList and how to use it?

If I look up what an ArrayList is and how to use it I often get confused. I get scared when I look at this for example: new ArrayList<Element>(Arrays.asList(array)) I probably have a few gaps in...

Mysterious linker error "undefined reference to `__gxx_personality_v0'" using clang in cygwin

I did some search, all answers seem to suggest that using clang++ instead of clang (or rather g++ in place of gcc), which is what I did in the first place. Still, the problem persists, with...

Is there a definite Selenium solution to modal pop up dialogs in Internet Explorer with Java?

I have searched many, many places for a solution to my problem, but haven't found it. I figured that by now, Selenium would have provided a straight forward and simple solution to handling modal...

CSS image in front of text

I am trying to place an *image in front of text*, which is inside a div. Almost ever search for this brings results on how to put text in front of an image. This is not what I want to do. In the...

Implementing knight's tour graph and using it with different search algorithms

I want to implement knight tour and run it with different search algorithms like bfs,dfs,a* and so on.User selects a place on chessboard and then things will be done.The question is after...

Bootstrap 3 tooltip not working

Following a really outdated bootstrap tutorial, but it is really well structured so trying to finish the course. I have been able to fix most of the issues by looking at bootstrap documentation,...

calculate a grid layout in python for scribus

I want to create a grid layout in scribus to create a photobook. The grid layout should take the image sizes in account and place the images accordingly. Like the pinterest layout /...

Using Sphinx Extension to convert svg to pdf

My company is using Sphinx to create the manuals for our products. Our products are shipped with PDF and HTML documentations. We are using Windows as a sole developer environment. A necessary...

React native TypeError: Network request failed with fetch()

I'm using React native for developing an android application. With this fetch request I'm getting the error TypeError: network request failed: fetch('https://pixabay.com/api/?key=MY_KEY&q='+...

Where to install pip packages inside my Conda environment?

As I understand it, if I use pip install ___, that package will go to my global version of python. If I change directory to the within my Conda environment then that package will be isolated...

cd into a specific directory changes PATH variable

When I change directory (cd) into one specific directory (which contains a rails application) it changes the PATH variable, removing many directories from PATH including /bin, /usr/bin, and...

Modify Contents of Editable Div on Twitter Post

I'm writing a chrome extension which helps the user type things on twitter. When writing a tweet on twitter, twitter opens an editable div container. When the user types into it, twitter (which is...

OCX AfxOleRegisterTypeLib fails with error 0x80040200

I upgraded an OCX library from VS2010/Win7 to VS2019/Win10. The project builds, however when I try and use RegSvr32.exe from an elevated command prompt, I receive error 0x0040200. I did a bit of...

Failing to get Karaf 4.2.6 to log using log4j2 with JsonLayout for a layout type

I have been at this all day and not getting it to work after trying so many combinations. At the end of the day, I am looking for an explicit list of steps to get JSON logging from Karaf. I have...

Add button inside Input field ReactJS

I want to add a button inside my input in React. Now I know I could place it there by setting the button absolute and moving in on there using css but I assume that there is a better option to do...

SQL Server Agent Job stops SSIS Step with "unexpected error" and without any error informations

I am dealing with my problem on some Windows Server 2019 (Core) with one running SQL Server 2019 CU4 instance each. What we try to do We are currently building a data warehouse with distributed...

MongoDb C# ToList() slow performance. Any way to improve?

as the title says I found MongoDb C# Driver being very slow in term of data manifestation. I have a collection with 1000 documents. They will not grow and I need to read a lot from this...

Create condition that searches between two different WHEREs in the table

I'm making a little game where robots fight each other. The robots have a table in the database where their match scores are recorded. Each robot has its own home island where it can face...

If each thread needs to resume work, whenever any thread finds some new information, how to wait until all threads have finished?

A Seemingly Simple Synchronization Problem TL;DR Several threads depend on each other. Whenever one of them finds some new information, all of them need to process that information. How to...