Newest Questions
77,720 questions
4
votes
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Positive Integer Class Supporting Arbitrary Number of Digits
I have implemented an elementary positive integer class that supports addition, subtraction, and multiplication for an arbitrary number of digits using a singly linked list.
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- 361
1
vote
0
answers
33
views
ds (directory switcher): a *nix program for tagging directories with (short) tags and switching between them via tags [closed]
Repo
The complete program: GitHub repository
How it works
After you have cloned the above repository, change directory inside it and type make in order to compile ...
- 31k
1
vote
1
answer
80
views
Swift: Find neighbor-elements within an array
I need a function which finds the left and right neighbor-element within an integer-array, based upon a given index. If the given element is 0, then it shall return largest index as left neighbor. ...
- 4,992
6
votes
2
answers
359
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A simple server-client application in C
I am reading "The Linux Programming Interface" by Michael Kerrisk. I'm studying about sockets and I made a simple application using sockets on the unix domain.
I want to know if I'm using ...
- 163
2
votes
1
answer
74
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Lock-free queues and stacks
I am currently working on implementing lock-free stacks and queues. So far, they seem to function properly in test programs, but I am unsure if there are any underlying issues or areas for improvement(...
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11
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5
answers
1k
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I implemented FFT in C
I wrote Cooley-Tukey's FFT algorithm in C. And I want to know how safe is this code? Is it just trash? How can I make it more memory safe?
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- 151
6
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1
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Optimizing a Rust permutation chooser for the most subsequences
I had semi-recently asked a question (well a couple closely related questions) on math.stackexchange. The simplest question is phrased as follows: You are allowed to make 3 permutations of length n. ...
- 6,180
4
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4
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732
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A program to solve quadratic equations ax² + bx + c = 0 with imaginary results
This is my second post and my second “tough” question I came across while reading PPP3.
I graduated a while ago and honestly forgot the equation... The question didn’t explicitly say I needed to find ...
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0
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0
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+50
Is this how Flutter BloC is suppose to be used?
I'm new to Flutter and BloC and it just seems quite different than what I've been using until now. In terms of state, I'm coming from the JS world of Vuex, Pinia and Redux and I've also worked a with ...
- 51
4
votes
5
answers
655
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Password storage with gatherer plugin in Python
First the PasswordStore, which is pretty straight-forward. It stores title-password association, but it is important that a title can have multiple passwords.
The <...
- 625
7
votes
1
answer
305
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General Two-dimensional Elliptical Gaussian Image Generator in C++
This is a follow-up question for Two dimensional gaussian image generator in C++ and Three dimensional gaussian image generator in C++. According to the statement in https://fabiandablander.com/...
- 7,098
1
vote
0
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71
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Simple image captcha test in Java and JS (revised version)
Following on from my previous question, I would like to know what could be improved here and whether it is now secure.
I had to use Java 8 because the Blade lib was built with it, and I want to extend ...
- 834
11
votes
3
answers
949
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Golden-section optimization with complication
I'm trying to implement the so-called golden-section optimization in C++.
This is a simple algorithm to find an extremum of a univariate function \$f\$ within an interval \$[a,b]\$.
The crux is to ...
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2
votes
1
answer
76
views
Encapsulating status codes and messages à la absl::Status
I'm new to Lua and thought a decent way of familiarizing myself with the language would be to implement some basic utility functionality around status codes. In particular I've reimplemented a subset ...
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4
votes
1
answer
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Implement a simple image captcha test yourself in Java and JS
First of all: I was looking for a simple image captcha solution for a website, but all I found were "Over-the-top" solutions for me. So I decided to write something to self.
I mainly use two ...
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