I tried to make a simple qsort() function in a functional way, it takes a vector and a bool pred() Suggestions as to make it more functional, optimize it, and/or remove extra steps and intermediate variables are appreciated template <typename T> void operator+=(std::vector<T> &v1, const std::ve...

Problem: Given a singly linked list of integers l and an integer k, remove all elements from list l that have a value equal to k. My solution works, but I suspect it's not smart and optimized because I have many extra variables to solve this question. I appreciate all help! In Node.h I have: ...

I have been working on a function called "funcCallFunctionByHash", which accepts a 64bit DJB2 hash of the function name and either the base address or name of the DLL that exports it. A third parameter is used to define which mode the function operates in. The function preserves the four register...

Qn - Why am i getting yes for all the test cases given in the problem? One more thing if t=1 and if I check the test cases it gives the correct answer, why? Please I am not that much efficient in programming. Any help would be appreciated. Link to the problem - https://www.codechef.com/problems/...

This was my first attempt at scraping approximately 1800 open datasets from the web. On the first go-around it takes approximately 1 hour to complete. Subsequent iterations only take 4 seconds. I'm guessing there are much better ways to implement the logic that I did with regard to filename struc...

I receive data with NA values. I would like to trim off the leading and trailing NA values, but to leave the interior NA values in place. I've written the below in Rcpp, but it is very much a hand rolled solution -- and i'm alive to the fact that i'm going to make mistakes doing things this way...

Here is my code for the design of a parking lot in C++. The following assumptions are made. Referred from Geeks for Geeks The parking lot has multiple levels. Each level has multiple rows of spots. The parking lot can park motorcycles, cars, and buses. The parking lot has motorcycle spots, com...

So say we have a list of strings that are keys of an object, and we want to see if any of these object properties are true, and if so, then execute a block of code. I think it's obvious to use Array.some here, but should we filter the list first? That seems more explicit, but also wasteful. O...

I am trying to use the back end validation for front end validation and this is what I got. Maybe there is a better way to do this? If someone knows please share the knowledge. HTML: <form id="post-store-form" action="posts/store" method="POST"> <div class="form"> <input id="post-ti...

I'm not a beginner programmer as I have experience in Node and Ruby, but I'm a beginner when it comes to C++. And as C++ is quite different from these two, I figured I could use any tips, tricks, hints and pointers (hah!) to learn how to actually write C++ and to get the most out of the language....

i know that i can do two list collection like this foreach(var pair in collection1.Zip(collection2, Tuple.Create)) { Console.WriteLine("{0}, {1}", pair.Item1, pair.Item2); } but How can i do with three or more in c# ?

I would like to have a way to validate a Stirng if it has the format of Degree minut second with a regex any helps

I was given an opportunity to join a WordPress contractor/freelancer website and was asked to build a plugin that would list the wordpress users in the database, allow you to filter them based on their role, allow you sort them based on the display_name and the username, and have pagination. But...

I've an Audio Host application that sends block of samples to a DLL I'm building. It sends 44100 samples per seconds (i.e. Sample Rate 44100hz), per block, processing 16 distinct Voices. It process an Oscillator, which play a basic sine wave, modulated at Audio Rate by Gain, Pitch and Offset. ...

please review my code about array implementation on stack in Java. It involves push, pop, get and growth when limit of array size is reached. I am a self-taught programmer starting to learn DS and algo. I am looking for 1. any recommendation on conventions 2. an honest opinion on how bad this pie...

I am struggling to invent a better way of eliminating stupid switch-case statements by adding more knowledge to the code. switch (shapeType) { case "circle": shape = new Circle(colour, Double.valueOf(req.getParameter("radius")), Double...

I have an object of ingredients to be added to a burger. It's structure is as follows: Input ingredients: { salad: 1, cheese: 2, meat: 2, } I want to transform it to an array of JSX elements. Each key in the original object has to be mapped to the number of JSX...

Can i use both bindValue and bindParam on a single query? $nome = 'nome'; $stmt = $db->prepare("SELECT `nome`, `mov`, `gen` FROM table WHERE gen LIKE :gen AND nome = :nome"); $stmt->bindValue(':gen', '%'.$gen.'%', PDO::PARAM_STR); $stmt->bindParam(':nome', $nome, PDO::PARAM_STR); $stmt->ex...

In examples for fetch() I don't see many example for status code checking. (1) I'm expecting to catch 403 unauthorised responses and push the login path to React router to render the login page. Haven't seen this elsewhere, but seems to work alright. (2) Is it alright to nest the second .then t...

For my internship I have been developing a desktop app for an engineering team. I believe this is following the model view controller pattern where I keep my UI code dumb and pass all the UI elements from that class to another class which takes care of error handling and UI view changes. Logicall...

Is it a bad idea to include else's when not needed to make the logic more clear ? I've done this more with PHP with longer drawn out if/else's but if you look at the following code (bash) you can get the gist of what I'm saying. Again it's not the most useful example since we are really comparin...

I need to connect to a IBM db2 table using jruby and ruby on rails. I have managed to do it, but I haven't seen this solution anywhere and I am hoping i can get some feedback on it, or if there is a better approach. I am using the gem: activerecord-jdbc-adapter (1.3.16) I added a jar file to my...

I've written a library for mongoose-os C mgos_timers: https://github.com/cesanta/mongoose-os/blob/master/fw/include/mgos_timers.h I wanted to write a wrapper to take advantage of the full potential of C++ lambdas. The original C timers allow to pass a callback function pointer. /* Timer callb...

I'm trying to learn React and, as most other people, I decided to start from the React tutorial where a TicTacToe game is built . I tried to rewrite the example by myself and one thing that I did differently was to separate the model of the Tic-tac-toe game from the React component, a style that...

I am semi new to coding and have been following a tutorial on making a "text based RPG" on CodeClub. Here is the full code: #!/bin/python3 # Replace RPG starter project with this code when new instructions are live def showInstructions(): #print a main menu and the commands print(''' RPG ...

In this SO question the OP is unable to scrape a table from a dynamically loaded website. In monitoring the web traffic, via Chrome dev tools, I found that there is an API request made that returns a JSON string with the required info. The following is the answer I wrote to extract the columns ...

SELECT DATE_ADD(MAKEDATE(2016, 7), INTERVAL WEEK(DATE_ADD(booking.booking_date, INTERVAL booking.nights - 5 DAY), 0) WEEK) AS Thursday, SUM(booking.nights * rate.amount) + SUM(e.amount) as weekly_income FROM booking JOIN rate ON (booking.occupants = rate.occupancy...

This Trie implementation works, however, I would like to get an advice on how to improve this code. Any advice is appreciated: functions implementation, memory management, modern C++ usage, const-correctness, code readability, anything else I am missing? Any additional functions that would be u...

I need a code for doctors' surgery which keep record of doctors, patients and appointment in javafx. Below is the link to show which kind of code i need for this program. https://www.youtube.com/watch?v=QmP_XRxXXgM

trying to learn python and practice what i am learning. this is a solution practice i found online: Ask the user for two numbers: one number to check (call it num) and one number to divide by (check). If check divides evenly into num, tell that to the user. If not, print a different appropriate m...

I've been trying to get into functional programming with javascript and have tried to make some experiments with currying and function composition. What I've played with so far is a sorter function that sorts object keys either ascending or descending: const data = [ { grade: 4, name: 'Zo...

I'm learning javascript and have written a function that accepts a string and returns the first word with the greatest number of repeated letters. For example: Input:"Hello apple pie" - Output:"Hello" Input:"Hello apple pie yelllow" - Output:"yelllow" I've tried to keep it as concise as possibl...

I was asked to define a recursive function that takes in a string and returns True if the string is a palindrome, False if not I thought since I must check string for whitespaces that could be the perfect opportunity to use a wrapper to include in my isPalindrome() function. My code: def r...

In the following code I am trying to add an index to my graph so I can label the different two lines, However I am running into the following error, how can I fix it? --------------------------------------------------------------------------- TypeError Traceback (...

I'm solving 387. First Unique Character in a String LeetCode problem defined as: Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. Note: You may assu...

This is my 3rd javascript canvas game. It's basically just snake right now but I am planning on adding some more aspects to it soon. I was wondering if I could get some feedback especially on how i'm checking if the snake crosses itself in the game function. class Block { constructor(x, y,...