I wrote a small vector with a few lines of unsafe Rust. The idea is to have a vector, which can be read from simultaneously, but it needs the ability to grow. To realize that, the storage is organized in pages. As page, I use arrayvec: const ELEMENTS_PER_PAGE: usize = 1024; type Page<T> = Arra...

I am trying to write an algorithm which takes the values in an array and tries to find the largest number and then calculate the largest difference between numbers. The largest num part works but the largest dif does not.Currently what I wrote screws up and I don't know why... the largest dif sho...

So I have been wanting to work on a solo programming project after trying to learn for the past 10 months. Right now I am working on this Texted Based RPG. I made a complete version that was awful, but I completed it. I got some feedback from a friend and I am now stuck on the code. I am not sure...

I am learning algorithms and have implemented the Rabin Karp algorithm. Can anyone please suggest the implementation is correct or not? I didn't implemented rolling HashCode, does it still count as correct? this algorithm got accepted in https://leetcode.com/problems/implement-strstr but its 7m...

I want to have a counter like that of a clock. When it reaches 60 minutes it instead goes to 00 and the hour changes. Instead it keeps counting up forever. The used code is HTML and javascript Relevant code: var hour = parseInt(prompt("Hour", "0"), 10); var minute = parseInt(prompt("Min...

I need to build a BCC crystalline structure with 2 random atoms (between Hydrogen(1) and Iron (26)) and I need to use the 'ase.Atoms' and the 'set_atomic_numbers', and then calculate the angles between the atoms. But this is happening: Code: aCFC = 4.0 aCCC = 3.5 atom1ccc = np.random.randint...

I've come across a simple challenge: given a phrase, check if we can form the given word vertically by stacking words in rows. For example, we can form the word "boom" from this phrase:    every breath             you take every move       you make My Python code: def can_spell(s, w): word...

I have PostgreSQL DB and I am using SQLAlchemy to sync data with my DB. For example I have a following declarative class which represents a news article obtained by parsing one of the news websites Base = declarative_base() class News(Base): __tablename__ = news id = Column(Integer, autoi...

There are two scenarios in the business: New user signs up, contract needs to be created Existing user buys additional product, existing contract needs to be retrieved Now, at the moment both scenarios are handled by the same Controller logic and a method is used to handle both cases: $this->...

I have just started Computer Science A-level and to help with possible coding projects I may do, I am making a voice recognition program in Visual Studio with C# to possibly incorporate into a chatbot. However, after only learning some C# in the last couple of weeks, when attempting to incorporat...

How could I get value of from a hash map in efficient way. I want to inspect an entry with key = "type" and retrieve its corresponding value. typedef std::unordered_map<std::string, int32_t> Row; for (const auto& pair : r) { if (pair.first == "type") { return pair.second; } } A for loop l...

My training data is of shape (2000, 2,128) and looks like [[[0 1 ....127][2 4 6 ......256]][[1 4 6 6 ..][3 6 7 8......]......]]] and the labels are of shape(2000,) and look like [1 0 0 ...] the main idea of my code is to classify a pair of images (represented by embeddings of length 128) if the...

I am trying to find the best way(/most efficent way) to setup my console program's menu. The way I have it set up is that I have a Menu class and then I use a menu pointer called currentMenu and I just change where it is pointing to. it runs fairly well so far but I'd like to know what I could do...

I have class for calculating temperature of an object at different positions, based on ambient temperature. class BodyA: def __init__(self, ambient_temperature) self.amb_t = ambient_temperature self.pos1_t = self.amb_t + 1 self.pos2_t = self.amb_t * 2 self.pos...

Here is my code for a class that is responsable to manage some common users task like registration, login and logout. It implement also a sub class that can be used to check the session of a logged in user. I've tested it and works fine, but I will improve it as soon as i can. If anyone is intere...

So I've got some script that will auto upload all new Camera files to FTP server. This works great but I'd just want to modify it to so that it only uploads the JPGs, and ignores other filetypes. I'm really out of my league tbh here, but guessing it'd look something like below. How can it get it...

Something I've found myself having to do reasonably often is map properties from an Object (usually a heavily nested MongoDB document) to a different 'shape' to then pass it to a function call or API endpoint etc. Combine this with a development environment in which these 'shapes' are prone to ch...

I've taken on the challenge of modeling a simple User Voice-like system. High-level description: It's a portal for some SaaS users; They come and leave feature requests, suggestions, etc.; They should be able to vote/unvote for any suggestions; They can leave as many comments as they like on su...

I'm writing Azure function using visual studio (multi-layers project), where I'm managing all Azure ServiceBus related code in one class. public class MessageBroker : IMessageBroker, IDisposable { private readonly IAppConfiguration appConfiguration; private TopicClient topicClient; p...

I'm beginning the long process of developing an Adventure Game/RPG and I was hoping to get some review on a resource system I'm coming up with. How it works is, a resource is generic to every resource in the world. Each resource will have a name, a random yield, and a random quality. So I've cr...

I am trying to find the best average score from below two dimensional array: String[][] scores = { { "Amit", "70" }, { "Arthit", "60" }, { "Peter", "60" }, { "Arthit", "100" } }; The output is: 80 (Arthit's score (60+100)/2) Till now I solved this problem with below approach, however I am loo...

I was successfully able to write a small script using PySpark to retrieve and organize data from a large .xml file. Being new to using PySpark, I am wondering if there is any better way to write the following code: import pyspark from pyspark.sql import SparkSession from pyspark.sql.functions im...

I have implemented a custom run length encoding algorithm that converts an m x n array into an p x (n+1) array. The extra column is to record counts. Probably easier to show through examples: encode = (array) => { // crude array equality function arrayEquals = (...arr) => { return ar...

I'd like to be able to better test application stability. Usually when you're doing this, you run the application and keep your fingers crossed that it won't crash when an error occurs (be it a missing file, no database connection or whatever service didn't work). The problem is that it's diffic...

I was trying to see if data.table could speed up a gsub pattern matching function over a list. Data for reprex. It's a list of 3 data frames with some asterisks placed here and there. Each data frame is 6500 rows, 2 columns, and generally representative of my actual data. library(data.table) li...

Example: if I have a dictionary "1": ["Z", "B", "V"], "15": ["T", "C"], "2": ["W"], "55": ["E", "R", "K", "M"] and an input string of "1255", I have to write a function compute(dictionary: [String: [String]], input: String) {} such that the output should be printed as follows: ["ZWE", "...

Consider the following sorting algorithm: df <- data.frame(food_1 = c("APPLE 1534", "PEAR 2525", "BANANA 3045", "WATERMELON 5000"), food_2 = c("ORANGE 2035", "BROCCOLI 5000", "BLUEBERRY 2000", "TOMATO 3000"), stringsAsFactors = FALSE) # Sorting for (i in 1:nrow...

I'm learning to code for fun, and just finished my first program. Idk what to think about it since I it's my first finished real code, but hey it works! I'm pretty sure that it can be written shorter or better than this. Right now it can only solve 1 problem at a time, but I'm going to make it s...

Given the undirected graph above, find cycles 1->2->3->1 4->5->3->4 1->2->3->5->4->3->1 I tried using this pseudocode (from here) dfs(adj,node,visited): if (visited[node]): if (node == start): "found a path" return; visited[node]=YES; for child in adj[node]...

CREATE TABLE Appointments ( id INT AUTO_INCREMENT, barberID INT NOT NULL , customerID INT NOT NULL , barbershopID INT NOT NULL , date DATE NOT NULL , time TIME NOT NULL , appointment_length TIME DEFAULT 003000, #...

So, I'm a beginner programmer, and I'm working on my 2nd program (my first is a text RPG) and I have a little problem. This is my current program a = 0 b = 0 c = 0 d = 0 e = 0 f = 0 g = 0 h = 0 i = 0 j = 0 k = 0 l = 0 m = 0 n = 0 o = 0 p = 0 q = 0 r = 0 s = 0 t = 0 u = 0 v = 0 w = 0 x = 0 y = 0 ...

How would you improve this event calendar? The thing I'm trying to work on is how the next and previous function. Since they're the only jQuery and everything else is JavaScript. // all information require to create the calendar var months = ["January", "February", "March", "April", "May", "...