October 23, 2024
Chicago 12, Melborne City, USA
C#

Why does my binary search need an extra comparison? log2(N)+1

I want to find the index of the first integer in an array of integers which is <= key. I can do it with binary search in log2(N)+1 compares. Shouldn’t it be possible with only log2(N) compares? // Returns the index of the first integer in keys <= key. size must be a power of

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java

PSQLException relation error Keycloak relationship spring boot

I recently migrated my Spring Boot application along with Keycloak from MariaDB to PostgreSQL. After migration, I started encountering the following error: Caused by: org.postgresql.util.PSQLException: ERROR: relation "keycloak.user_entity" does not exist Position: 51 The table definitely exists, and my application can connect to the database. However, I suspect this issue might be related to how

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python

In pandas, how can I get a version of nth() to act as an aggregator?

In Pandas v1.x.x, df.groupby("col").nth(0) returned a dataframe that had "col" as the index col. Now in pandas v2.x.x it doesn’t, and my understanding of why is that nth is now seen as a "filter" and not an "aggregator". I saw some threads that suggested I instead do df.groupby("col").nth(0).reset_index().set_index("col") If I wanted a result with "col"

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GPL

Free GPL WordPress Auto Spinner – Articles Rewriter

WordPress Auto Spinner rewrites WordPress posts automatically by converting them to fresh and original content by replacing words and phrases with their synonyms on autopilot using its built-in synonyms database or optionally using one of the most powerful spinning services. It can NOW rewrite content using OpenAI ChatGPT/Google Gemini/Claude! and more APIs including:- SpinRewriter API

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javascript

How to go to the First slide when reaching the last slide?

I have this slider that works just fine. However, when it reaches the last slide I want it to keep moving to the RIGHT and show SLIDE 1. My issue is that once it reaches the last slide it moves to SLIDE 1 but it moves to the LEFT. Can anyone point me in the

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SQL

SQL “EXCEPT” vs “WHERE NOT IN”

I would expect the following two queries to yield identical results; however, I have several instances where the first is empty while the second returns several hundred rows. How is this possible? Working in Azure Synapse using T-SQL SELECT [value] FROM table_a WHERE [value] NOT IN (SELECT [value] FROM table_b) SELECT [value] FROM table_a EXCEPT

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CSS

Is it possible to rotate video chunks in javascript?

I am working on a video conferencing application and user can toggle between having their camera to be Picture-in-Picture or just on the web page. For the webpage I used a video element that would use getUserMedia stream as the srcObject and would display the current webcam. However, as the stream from the webcams are

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C++

XOpenDisplay fortran fails but C works fine

I found an Xlib interface to Fortran here. When I run a simple C code (creating X windows) all is well. But the simplest Fortran code fails. use xlib type(c_ptr) display display = x_open_display_test('') <----------------infinite loop ! display = x_open_display('') <---------------- returns NULL if(.not. c_associated(display)) then write(6, 901) stop end if 901 format('Display is NULL?')

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HTML

why does the character encoding of html source code needs to match the one declared in the meta charset tag

the title very much describes the question, the html standard says explictly that the only value acceptable for meta charset tag is utf-8, and even the nu html checker throws an error if any else value is used. But it also throws another error at the same time saying " Internal encoding declaration iso-8859-1 disagrees

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Android

Three.js Not Rendering Properly on Mobile in React Vite Application

I’m working on a React application using Vite and Three.js for rendering 3D elements. Everything works perfectly on desktop browsers and IOS, but when I open the application on a android mobile device, the 3D elements break and don’t display correctly. The models either look distorted, or some parts are missing entirely. enter image description

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