Newest Questions
77,759 questions
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Return breakdown of component from database into its constituent materials; correctly handle recursive scenarios
I’m working with a MySQL database that models product compositions and raw materials. There are two relevant tables with columns as shown:
product_recipes:
...
- 101
3
votes
2
answers
51
views
-1
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0
answers
52
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Backend E-Commerce API using Laravel
I want to know if I am ready to apply for a JR Laravel Backend Developer Role, and if my code meets the expectations for a JR or maybe even a Mid-Level Role. My Project isn't done fully: I am planning ...
- 1
4
votes
2
answers
219
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Strength of a Pyramid Top
I need to solve the following competitive programming problem from coderun.ru:
Strength of a Pyramid Top
The pyramid consists of n horizontal layers of blocks: the first layer contains n blocks, the ...
- 41
0
votes
0
answers
19
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CodeView Custom JavaFX Node
I created this to learn about creating custom controls using Region. I did not do any testing of the Control, and it is limited to displaying Java only. I didn't need this for any reason other than ...
- 239
3
votes
1
answer
111
views
Reassignable reference_wrapper with empty state
I created a simple custom refernce_wrapper class template, which, in contrast to std::reference_wrapper, has some additional ...
- 133
1
vote
0
answers
19
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ReadWrite Lock compatible with coroutines
A while ago I wrote for my own needs a (non-reentrant) read-write lock for kotlin's coroutines. I got no reactions on the relevant github thread. I think it's a nice code, so I thought I'd share it ...
- 111
5
votes
2
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761
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Project Euler #909: L-Expressions I
I am trying to solve the 909th challenge of Project Euler. It is basically about replacing specific patterns in a string until no pattern is found. A given string like ...
- 299
9
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3
answers
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C++17: shared_mutex protected DNS cache (rare writes, many reads) return-by-value vs decltype(auto)?
I’d appreciate a review of this small DNS cache.
It stores pairs of domain and IP address
and uses a std::shared_mutex because reads are frequent and writes are ...
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5
votes
1
answer
268
views
PathFinding.java: The grid view and model
Motivation
I am really fond of qiao/PathFinding.js, and, so, I decided to start to do something similar (PathFinding.java). Also, this time, I am wishing to practice some MVC-patterns. It would seem ...
- 31.3k
8
votes
2
answers
530
views
Own HTTP server implementation in Java with a simple template engine
I would like to hear what you think about my simple HTTP Server implementation with a template engine in Java.
Have I overlooked any "pitfalls or caveats", or is there anything else to note?
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6
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1
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265
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Splitting a long introduction into collapsible elements easier to read and translate
Before I started, we had a few long introductory texts that were shown to users in different part of the editor window, depending on what type of object they are editing. The texts describe how to add ...
- 157
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52
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lanczos_resample Template Function Implementation for Image in C++
This is a follow-up question for Two dimensional bicubic interpolation implementation in C++. I am trying to implement Lanczos resampling for 2D image in this post.
The experimental implementation
<...
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-3
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47
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Role-based Access Control Class code [closed]
I want to know if the sequencing of my code acknowledges coding conventions, and is easy and maintainable to follow through. Here is my code:
...
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3
votes
1
answer
132
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Java: counting letters FROM A fractal algorithm shows prime number patterning
This example finds all "letter" structures.
letter a = LMLMMM
letter b = LMMMMM
letter c = MMLMMM
letter d = MMMMMM
Symbol L = live = prime candidate number
Symbol M = multiple = composite ...
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