8Q | General Purpose 8 Qubit Optical Quantum Computer | GPU library

This is my sample data:

I posted a similar question to this one a few weeks ago where I had trouble finding the data race in my N-queens program using pthreads in C. Why is my multithreaded C program not working on macOS, but completely fine on Linux?

I got a few suggestions in the comments sections of the post and I really tried my best to make corrections based on them. I sat with the suggestions a few days, changed some parts but the data race persisted and I just cannot understand why. There are counters inside critical sections for the number of productions and consumptions. I feel completely blind when looking through the code and analyzing it, I'm aware that consumptions are too many but the synchronization around that code fragment should with my knowledge be correct, but obviously something's not right. External input would be greatly appreciated.

This is the code I'm using and I'm not sure how to reduce its size to still reproduce the issue. I compile it with gcc (clang-1205.0.22.11) on macOS Monterey (12.1) using a MacBook Pro 2020 x86_64 architecture.

compile: gcc -o 8q 8q.c*
run: ./8q , NxN chess board, N queens to place
parameters: ./8q 2 4 Enough to highlight the problem (should yield 2 solutions, but every other run yields 3+ solutions, i.e duplicate solutions exist
note: running the program with ./8q 2 4 should give 2 solutions, 1820 productions and 1820 consumptions.

I'm trying to import and fetch data from CSV file and store it in my database my database table schema is like this
users ( ID , Fname , Lname, user_type , major , Bday , Email,password , image , status )
csv ( 111 , Leo , pichon, , business, , leo@yzu.cn ) and this is my csv file schema , columns only matching the required filed of my database schema its somthing like this : '' the empty filed either have default value or null ''

after importing i get the following notice for almost each row of my data file : Undefined offset: 1 in php csv here's my php function :

I would like to use altair to display an image and make it interactive for zooming and panning. Here is an example that does not work:

I have 3 SVGs in a web page. when I use each one of them individually, its rendering is ok and as expected. but together in one page they render not correctly. as you can see in this picture only number2 is rendering correctly (the white circles on it)

I get the svg from designer and I just want to know if this problem is related to the svg code or not.

and here is the svg codes:

number2:

I have 2 questions about Solaris SMF. (I am an SMF newbie.)

I set up the Oracle RDBMS service in SMF as per https://docs.oracle.com/cd/E37838_01/html/E61677/odbstartstop.html

The database part works entirely as expected, so I added a listener as another service instance seeing as the method script has an option of 'listener' as an argument instead of 'db' and will run a lsnrctl start ${LISTENER} instead of using sqlplus to access and then start or stop a database instance.

The svcadm enable and svcadm disable of the service start and stop the listener as expected. The issue is that the framework senses if lsnrctl is running but does nothing to restart it, if it has stopped. See below:

I was doing some quick benchmark tests involving a std:vector. I start with a relatively small vector of 100 ints and call various methods for filling it with 1,000,000 ints. Most of my functions involve clearing the elements and adding the elements again or creating a new vector and moving or swapping it with the original vector. I also have a function that just resizes the vector and overwrites the elements.

You can see the functions in the code below. What's interesting is that resizing the vector and overwriting the elements is by far quickest. I thought that reserving the memory before pushing the elements would improve performance.

I know that std::vector::resize() will resize the vector to contain the new count. According to cppreference:

If the current size is less than count, additional elements are appended and initialized with copies of value.

resize() should be constructing 100 less ints than the other functions. So I'm surprised by the difference in speed. I thought resize() would allocate and initialize the new elements while reserve would just allocate the memory.