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Unanswered Questions

610 questions with no upvoted or accepted answers
16 votes
0 answers
3k views

Realtime concurrent Haskell MIDI buffer

Problem Background MIDI is a serial representation of control signals to a sound generator. Typically, a noteOn message initiates the attack phase of a sound at a given pitch. The note will ...
15 votes
0 answers
264 views

Download files in parallel

This module has a ensure_downloaded function which takes a slice of Urls. It downloads all of the urls to a local downloads ...
10 votes
0 answers
760 views

Sieve32FastV2 - A fast parallel Sieve of Eratosthenes

I’ve created a much cleaner, better designed version to my parallel sieve. I’ve implemented most of EBrown’s micro-optimizations but also revamped the code on my own (that is not in direct response ...
6 votes
0 answers
107 views

Chapter 8 Challenge: Add employee names to a department

The boring but exciting challenge: Using a HashMap and HashSet, create a text interface to allow a user to add employee names ...
6 votes
0 answers
9k views

Example of multithreading in Python3 / PyQt5 using QThread

I wanted to make a simple example of multithreading with QThread in PyQt5 / Python3. The script generates a set of QLineEdits and buttons to start and stop a set of ...
6 votes
0 answers
128 views

Android component animatable on its height

I'd like to have a code review for a component which is supposed to be animatable on its height. It's supposed to be a transitioning element. I find it quite laggy on my phone. ...
6 votes
0 answers
815 views

Pseudo-parallel depth-first search

I'm writing a small program that generates a file containing an adjancency matrix, it then reads from that file, constructs a graph and does something like a parallel depth-first search (dfs) on it. ...
6 votes
0 answers
2k views

Implement two level caching using spring's cache abstraction Cache and CacheManager

Details about spring's caching framework are here. When I was reading this link, I thought the composite cache mentioned there was one that used levels of caching based on the order given to the ...
5 votes
0 answers
106 views

Dial's heap in Java for integer priority queues

(The entire project is here.) Intro I have this priority queue data structure for non-negative integer priority keys. I recall that it is called Dial's heap. Code Implementation ...
5 votes
0 answers
158 views

Java OOP Hangman revision #4 includes UML

This is a continuation of this question. In the game the player chooses a topic and then gets a random word (or words) from that topic to guess. I've repartitioned the code into objects several times,...
5 votes
0 answers
1k views

Exception handling: using @JsonProperty value to make error message

If the validation in RestController fails, I need to handle MethodArgumentNotValidException and provide an errorMessage, that ...
5 votes
0 answers
707 views

Multithreaded pathfinding in Unity C#

I've tried to implement multithreaded pathfinding in an attempt to increase performance, but if anything, performance seems to actually decrease when I enable multithreading. Is there anything I ...
5 votes
0 answers
193 views

stable producer/consumer threads in python

I have implemented a producer/consumer functionality using threads in a given framework and I'm pretty sure I did not cover all possible scenarios. I made a small reproducible version. Lines ending ...
5 votes
0 answers
66 views

Fragment of code with Android MVP that checks login credentials via REST API

I'm learning MVP for Android and am wondering if that piece of code that I wrote is correct in terms of this pattern or maybe is completely messed up. I'm wondering if there can be return type other ...
5 votes
0 answers
716 views

Liveness monitor : python and RabbitMQ together through Pika

I'm a beginner using Python, and I'm trying to implement a functionality of a monitor program already developed by an other programmer. This program is working on a Windows machine (made by Inno ...

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