I'm sure there could be some miserably unhappy, spiteful programmers out there who overload these operators asymmetrically. Those people should consider abandoning software engineering and taking up a more chill profession. — paddy 56 secs ago

Hi Sandeep. Dynamically generating variables is a common anti-pattern for newer programmers. What you're probably looking for is a data structure, like a list or dictionary. — Christian Dean 51 secs ago

See How do I ask and answer homework questions? and Open letter to students with homework problems — Bodo 1 min ago

"Best practice" questions are generally off topic here (too much opinion) but are generally on topic on softwareengineering.stackexchange.com. — torek 34 secs ago

Hi, this would be suitable for softwareengineering.stackexchange.com — paddyfields 15 secs ago

Please have a look at TOUR and How to Ask. About homeworks: How do I ask and answer homework questions? and Open letter to students with homework problems — fantaghirocco 41 secs ago

A Software recommendations are offline here, the Software Recommendations stack exchange site can be used for that. B In-document validation state indications are deprecated and forbidden. C Even the Adobe Acrobat support for legacy signatures prepared for displaying in-document validation states is documented to require the saved document to have the unknown state (yellow question mark) active. — mkl 34 secs ago

software recommendations are off topic. — Daniel A. White 7 secs ago

are not cUrl and FTP "software tools commonly used by programmers"? — alfonsostocchetti 17 secs ago

web developer is term for any person that works in creating web applications such as websites. While Frontend are the programmers that do the visible programming such as content and design. Backend does the programmign that is not directly visible to the user such as security, and databases. Full-Stack Developers are all roudners that do both and conenct both backend and frontend teams. However, Web Developers unlike Full-Stack Developer are not necessarily coders. You also have Content Creators, Graphic Designer, Sound Artists.... — tacoshy 22 secs ago

Check Software Engineering Stack Exchange. I see a lot more "which X would you..." type of questions there — S. Dre just now

Welcome to StackOverflow! What have you tried so far? What language are you using and which OS? Two cents: programmers (in general) prefer a code snippet with comments than a lot of text description :) Good Luck! — bonCodigo 47 secs ago

@Rogue well, to support multiple readers when using ReentrantLock, you have to release the lock for the actual operation (sum()), which implies that you have to maintain the state on your own, hence need noReaders and writer. Advanced programmers would probably fold them into one variable, but that’s outside the scope of this task, obviously. — Holger 24 secs ago

@GabrielStaples -- Yes, the solution is to never use using namespace std;. But look how many of these competitive coding "programmers" throw in the bits header, and the using namespace std; just by instinct. You hardly ever see where the bits header is not accompanied with using namespace std; -- they are married to each other it seems, in the typical competitive coder's mind. — PaulMcKenzie 42 secs ago

StackOverflow is not a homework service. Make a fair attempt and come back with specific questions about that attempt. See the open letter to students with homework problems. — Willem Van Onsem 23 secs ago

I already told you rather explicitly what you need to do. The next thing I can do is re-write your whole code, which I'm not gonna do. Please read How do I ask and answer homework questions? and Open letter to students with homework problems to understand why. — Federico klez Culloca 43 secs ago

A problem where a function signature is at issue is usually easy to isolate in a minimal reproducible example (a MRE) and then snuff out. Give it a shot, and if you've still got a question at the end, you've probably got something really sneaky and worth recording to help others in the future and should replace the code in the question with the MRE. You get an answer. Future programmers get an answer. Everybody wins. — user4581301 47 secs ago

I'm not surprised that it can't handle a lambdified function. It actually has to have access to the python code; numba doesn't just "run a black-box' function "faster". As for select, isn't that something you can write directly with required iterations? With numba you can write iterative code without a time penalty. Using numpy functions in numba is just a convenience for the programmers, not essential for performance. — hpaulj 10 secs ago