All Questions
75,530
questions
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6
views
Improving unit tests and error handling with files in Rust (PNGme)
I want to become proficient in Rust and I've followed the PNGme exercise. I've completed it up until Chapter 4 included, where I've written a lot of tests myself for verifying that the command line ...
- 101
0
votes
0
answers
6
views
Async recursion that must ultimately return a promise
I have an asynchronous function that must ultimately return a Promise (the first function). This function has many tasks but I've stripped them all down to just one for clarity. One such task is a ...
- 113
1
vote
0
answers
24
views
Minesweeper implementation in C++
I have implemented minesweeper in C++. You can get a box by entering the coordinates -row number, then column; starting from 0- of said box (eg: "0 0"); you can mark a box as a bomb by ...
- 53
0
votes
1
answer
12
views
Spawning a child process that is accessible in global scope through use of eval()
So basically my question is what would be a better way to achieve my goal? The code below works fine but looks like it is extremely inefficient and could be achieved in a better way. The code ...
- 101
-1
votes
0
answers
18
views
Need to make my Tictactoe Game better (Java)
I need some help with a school-project that i have! My code is very unnecessarily long, and i know that there is better ways to write it. So i have this code (generated code is not included & some ...
0
votes
0
answers
9
views
A reduce method which shape incoming data to anew simplified form aggregated common data in single objects
I built a method using reduce of JS to aggregate together data from a DB in a better shape.
What I'm wondering is, if that method can be simplified with a more ...
- 217
2
votes
2
answers
117
views
Implementation of the "tee" utility program
How can I optimize the program? To make it more optimal? The program should be more optimal in terms of source code, compiled executable size, memory usage, speed, bugs etc. Please criticize the ...
- 140
-1
votes
0
answers
19
views
Game based loosely on cricket
Cricket is a PC game which is similar to real cricket but has little different rules
There will be N number of players , Y number of overs, here one over means each player will hit one ball each, let'...
0
votes
0
answers
28
views
MVVM Architecture in WPF
I'm trying to use MVVM approach in .NET 6 WPF app. I've a simple project that has an object Entity and I have implemented ...
- 109
-2
votes
0
answers
12
views
(Godot 4.0) I want my code to wait 1 second then add a value to my money and then wait again... but it won't work [closed]
if upg4Dis == 1:
$ScrollContainer/VBoxContainer/Upg4.disabled = true
await get_tree().create_timer(1000).timeout
money += 1 * multiplier
so basically, ...
2
votes
2
answers
38
views
Basic Stack Operations using Linked List in C
I have made a few functions for some basic stack operations using linked lists. Please review my code and suggest some ways to increase its readability. I would also love to hear ideas on how to make ...
- 23
1
vote
1
answer
24
views
Calculate average of each line of input
I made a program that will loop and calculate the average of the input given by the user.
There are no problems here. I just want to know if there is a better way to do this, or a way to optimize this ...
- 11
6
votes
2
answers
255
views
std::array based push-only circular buffer
Minimal implementation of a circular buffer based on std::array, where elements can only be pushed and iterated. I'm interested on potential failures and very trivial optimizations, as I'd like to ...
- 161
0
votes
0
answers
15
views
0
votes
0
answers
21
views
Ballerina service resource methods
I'm playing around to find out idiomatic way to write service resource methods for HTTP API so that the actual program logic is separated from the resource methods.
Currently the (simple) program ...
- 303
1
vote
2
answers
54
views
Calculating square roots using binary search
I'm trying to find the square root of a number (num) using binary search in Rust. I'm new to Rust, but I've done quite a bit of programming in other languages, ...
- 111
1
vote
1
answer
32
views
Binary Search Tree implementation in C++ with templates
Im implementing a BST using templates and dynamic memory, here is my attempt:
This is the BSTNode.hh
...
- 269
2
votes
0
answers
39
views
Text-based game combat function in Python [closed]
I made a text-based game to learn python, since then I have tried to implement what I have found online to be "good practices". Does this follow good practices? Are inner functions good ...
- 21
2
votes
0
answers
17
views
Plot a 2D vector field with radial symmetry in Python
I computed a 2D vector field U = (u(x,y), v(x,y)) with radial symmetry, parametrized as (u,v) = a(r) (x,y) + b(r) (-y,x), where a(r), b(r) are given as solution of an IVP which I solved using
...
- 141
0
votes
0
answers
38
views
Generates all pairs (combinations of 2) up to a limit (exclusive)
Any improvements on this combination generator.
Seen a lot of combination generators online, but none like this.
Found pseudocode at:
https://www.baeldung.com/cs/generate-k-combinations
Fastest I ...
- 21
2
votes
2
answers
70
views
VBA functions to calculate sun and moon positions
I have the following VBA code (across three modules) to make UDFs to calculate sun & moon position data. The issue I'm facing is that they are very slow to run as I have over 6000 rows (over 10 ...
- 21
1
vote
1
answer
25
views
Asking for C++ advice based on a radix sort function
Can someone point out what possible edge cases/leaks/inefficiencies my code has and how they could be avoided/fixed. Basically, I want to know what mistakes I make so I can avoid making them in the ...
- 13
0
votes
0
answers
8
views
Group list of objects into smallest possible number of sublists without exceeding maximum sum
I have converted my Java answer from this question into Rust. As I am new to Rust, I would like to know about what I could improve in my code. Mostly I would guess that I could improve on borrowing, ...
- 163
2
votes
0
answers
36
views
Is it possible to get the reference of the original variable in the frozenset according to the key?
There are frozenset in Python, but no frozendict or frozenmap. I tried to implement it (Don'...
- 121
1
vote
0
answers
18
views
Creating a generic base class for singletons in Unity
Singletons can be very tricky to work with in Unity, especially when you dont want to give up on Monobehaviour features.
Most examples I've seen make use of ...
- 183
2
votes
3
answers
499
views
Returning the other value of boolean enum
I have a class with a "mode" state. There are currently two modes and we are not likely to add more in the future.
The class has a CurrentMode property, ...
- 183
3
votes
1
answer
84
views
Python function that shears image by n degrees while keeping the relationship between height and width
I am trying to find a method to shear/skew an image horizontally or vertically by n degrees (n ranges from -90 to 90 excluding the terminals) so that the result would meet the following conditions:
...
- 1,522
-1
votes
0
answers
15
views
email HTML in Gmail app on iOS 15.4 is rendering wrong [closed]
I have a table in my email and on every device and email providers works well, but on newest iOS gmail app the table is transformed. What could I change to improve this table?
My code:
...
- 1
-1
votes
0
answers
25
views
CommonPrimeDivisors task from codility [closed]
I'm working on the following task from Codility:
A prime is a positive integer X that has exactly two distinct
divisors: 1 and X. The first few prime integers are 2, 3, 5, 7, 11 and
13.
A prime D is ...
- 109
2
votes
0
answers
30
views
Algorithm for solving `subsequence with highest win rate`
Problem
Inputs:
1. min length of subsequence
2. binary sequence
outputs:
1. starting index of sequence
2. subsequence length
The task is to find a subsequence ...
- 121
0
votes
0
answers
30
views
Calculate the number of burgers that can be made from the given ingredient inventory [closed]
Posted this on Stack Overflow and got recommended over here. I have, so far, found no errors in the code but it looks a bit complicated and I would like some feedback. This is my second project in my ...
- 9
1
vote
0
answers
49
views
Implementation of Concurrent List in .NET
I would appreciate review of this implementation of the concurrent list that is, to my knowledge, currently missing in .NET Core.
Requirements
Thread safe
Lock free
Ordered
Supports get and set by ...
- 111
0
votes
1
answer
19
views
Show/hide depending on ID and Class
I have written some code that shows a div class, based on what ID is clicked. I'm a beginner, so not sure how to make this code compact, it seems way too long at the moment. Can anyone suggest a ...
2
votes
2
answers
36
views
Simple non balancing indexed binary search tree
The following code represents a simple indexed binary search tree of integers. The insert method inserts an int. The indexed lookup looks up the ith smallest element (0 indexed). I'm trying to write C+...
- 21
-1
votes
0
answers
8
views
Is it better to extend from EventTarget or implement EventTarget? [closed]
I guess this really just boils down to a question of inheritance vs composition. I've typically heard people advocate for composition more, but I am wondering if that holds true in an example like ...
- 345
1
vote
1
answer
33
views
Adapter pattern in C++ via Inheritance and Composition
Any suggestions on how the implementation of the C++ Adapter pattern could be improved here? Implemented via:
Composition
Inheritance
What needed to be adapted was the ...
2
votes
1
answer
44
views
Managing websocket subscriptions
The following code is pulling data off an exchange. It keeps the subscriptions to the channels because when the websocket client reconnects, all subscriptions are gone and we basically need to ...
- 423
0
votes
0
answers
11
views
Simple C11 mutex implementation using `_Atomic`
I'm trying to learn concurrency and synchronization using C programming (C11).
As a learning exercise, I wanted to quickly implement a mutex
I appreciate that this code is almost trivial, but I would ...
- 183
2
votes
2
answers
94
views
Implementing multidimensional integral for a custom function in C++
I am not an expert with C++, but I am trying to implement a 4-dimensional integral using GSL numerical integration approach.
The code below shows the whole algorithm. Although it seems correct what I ...
- 219
-2
votes
0
answers
23
views
Removing \n and \f from a string [closed]
I am trying to remove \n and \f (I'm not sure what they are called, I know \n is a new line)
...
- 1
2
votes
0
answers
68
views
Returning all divisors of a number as a matrix with N X 2 dimensions
I have developed a class structure with methods to return a matrix from a single input array. The objective is to insert the middle value of the array so 2n remains ...
- 21
1
vote
3
answers
63
views
Printing the first n numbers of the Fibonacci sequence
I have written a code below for printing the first n fibonacci numbers,
the code is as follows
...
- 615
-1
votes
0
answers
25
views
How to random the questions for my quiz game in C# Console App [closed]
I create a quiz game app. The user will answer 3 subjects and it is a multiple choices. After the user answers 10 questions per subject, it will display the score per subject and also the overall ...
3
votes
2
answers
71
views
Python: Ensure an entry exists in only one document
I have written a server-side app in Python that manages email by comparing senders against different lists and then dispositioning the messages according to which list the sender is on. As a side ...
- 131
-1
votes
1
answer
31
views
How to avoid DRY in function PHP? [closed]
I have some days in php practice.
There is a following functon that groups data and returns:
...
4
votes
1
answer
89
views
Blackjack game in C++
I developed a blackjack game. I am relatively new to c++ and OOP, so I am asking for feedback on what could be improved. This game features betting, taking a card, standing, and splitting a hand. ...
- 53
2
votes
2
answers
75
views
another attempt to implement the tee command
I implemented the tee command from linux. The program implements the -a option
Reads standard input until end-of-file, write a ...
- 140
1
vote
1
answer
19
views
Sidenav menu that appears when click on button
I have a side menu that appears when click on button, which works fine. But now I want to clean up my code, shorten it if possible. I was wondering if there is an easier and cleaner way to achieve the ...
- 11
1
vote
1
answer
14
views
Chemfig: isomeri equilibrium
I spent a lot of time looking for the right coefficients of the two arrows, in order to align the three xylenes.
There is probably a more elegant method. Could you suggest it to me?
...
- 51
0
votes
0
answers
14
views
Understanding the output of enumerate function in python [closed]
I am trying to understand the output of the enumerate function in the code below,
...
