So, I just managed to finish a problem that was proposed to me, and I find it very difficult since I started learning looping with for and using lists recently, I thought about sharing the problem and my solution with you guys so you could give me some advice on how I should make my code better o...

I am using the following oneliner to remove duplicate lines without sorting or removing empty lines perl -ne 'if ( /^\s*$/ ) { print } else { print if ! $x{$_}++}' However, this code seems bulky, specially the $x{$_}++ part. Is there any way I can make this code more readable and understandable.

I'm new to python and am trying to convert a very old utility I have from python2 to python3. I've searched and searched for answers, but I've yet to find an explanation for the behavior that I'm seeing or how to fix it... I'm grabbing data from a USB(serial) device like this: class TED(object):...

With Python 3.10 there is an additional way to explicitly define a possible None type. I can think of three ways to do it currently. My question has two parts... Is there any inherent value of one over the other? Would you recommend using them to indicate different things? A. Optional[type] fro...

I'm wondering if there is a nicer way to acomplish what I want: I do have an array with object like that: let data = [ {val1: [1,2,3,4], val2:[6,7,8,9] } ] What I want is an object like: let limit = { minX: 1, maxX: 4, minY: 6, maxY: 9 }; My Code works but once more I'm wondering if there i...

This is a Python 3 script I have written over three days that transliterates (not translating) English orthography written in Latin alphabet to the Cyrillic alphabet, the Greek alphabet or a mixed of those two above. The script transliterates the text, meaning it doesn't translate the meaning of ...

I have to check unsynchronized and synchronized methods and I decided to do that with following problem: let's say there're two purses and I am adding money to one, changing coin, adding to other. When thread is not synchronized I expect not correct values inside purses, then I synchronize them, ...

Shared below is a functionality test. I would love to get some review from the community. Thank you. The idea of the system is a simple CLI application which can be used to download PDF from a given URL. For more information please visit https://github.com/PythonCheatsheet/downloadpdf. Test Code ...

I have this cdef function that is being called over 4 million times, and I need to speed it up as it's taking up 50% of my program's time. cdef int cdetermine_win(int[16] state) nogil: for con in cwin_conditions: if state[con[0]] == state[con[1]] == state[con[2]] == state[con[3]] != 0...

I have written the following cli tool. import sys import argparse parser = argparse.ArgumentParser(prog='remove-duplicate-lines-except-blank-lines', usage='%(prog)s [options] [files...]', description='Remove duplicate line except ...

This was my solution to an interview question: Q: Implement an std::vector style container (does not have to be exactly compatible) with a fixed buffer and the following requirements and restrictions: The fixed buffer size should be provided by a template parameter. No dynamic memory allocations...

I'm a mathematician who is new to programming and I'm currently reading the book "Theory of Neural Networks" by Rojas. To become better, I try to program every algorithm that is described in the book using javascript (to be precise: the p5js editor). Let \$X=\{x_{1},\ldots,x_{N}\}\subset\mathbb{R...

I need help with VBA code. I have created a macro to create pivot table automatically. But taking 15 to 20 minutes of time to complete the macro. Especially at the point of below code taking half of the time. Review Code below With .PivotFields("NTS USD ACT Previous Year") .Orientation = xlDa...

This very short piece of code is a migration in which a column name is changed to be more descriptive. It is part of a larger bioinformatics application written in RoR that parses the output of multiple bioinformatics tools, then summarizes and stores the results in PostgreSQL database. The goal ...

My first language is Python and I learned considerably a good amount of it. So now I started learning C++. I know the basics of C++ and about classes and inheritance. This is my first serious project with classes. (I am thinking of adding an ai) I wanted to know where I could - Optimize the perf...

On my page I have a mouseup eventlistener on document. I want to be able catch if the clicked elements has a specific id in any of their parents. What I'm doing now is to loop over the e.path and only push the ids to an array and from there check if the array includes that id (the id is: getme). ...

Back at Uni I recall several teachers forcing students not to use built-in libraries, and instead have us build things from scratch like data structures/algorithms. My question is in the real-world and in programming interviews is it considered bad to use built-in libraries? For example (using it...

The problem I am working towards improving my Python coding. I am checking that I am doing the best in terms of the Python code, not necessarily the algorithms. Having looked at one of my previous attempts in C++, I learned about Sieves for prime numbers. I want to know that I am following the pr...

I'm scraping posts from various discussion forums and storing those posts, along with some metadata, into a relational database (SQL). My actual use case is a bit more complex, but I think I can give you the idea by using just two fictitious forums, one focusing on fishing ("Fish Forum") and anot...