I recently got a prompt when looking for a job. To spare any details, the company decided not to get back to me, so because I did not get a code-review/feedback from them, I was wondering if someone would review this and tell me how i could improve it. Here is a link to the full prompt (pretty ...

The series, 1 ** 1 + 2 ** 2 + 3 ** 3 + ... + 10 ** 10 = 10405071317. Find the last ten digits of the series, 11 + 22 + 33 + ... + 1000 ** 1000. def self_power(n): """returns sum of self powers up to n.""" total = 0 for i in range(1, n + 1): total += i ** i return str(tot...

The arithmetic sequence, 1487, 4817, 8147, in which each of the terms increases by 3330, is unusual in two ways: (i) each of the three terms are prime, and, (ii) each of the 4-digit numbers are permutations of one another. There are no arithmetic sequences made up of three 1-, 2-, or 3-digit pri...

ill be happy to know how i should improve my code in order to be a proper tkinter program. Ill post here only certain parts to show you the main structure. Thank you. import tkinter as tk class MenuBar(MyFinanceManager, tk.Frame): portfolio = None def __init__(self, parent): t...

I am doing a group by on a subset of a dataframe. I am working with 9m+ rows atm, subject to sharp increase. I tried different approaches already and wanted to know if i could squeeze a bit more juice in performances. What I tried : Option 1 df2=df[["ColA","ColB","ColC"]].query("(ColA == 'X') &

For this Code, I am provided a text file that contain several cities. I am suppose to identify the cities mentioned and print their state and country. Requirements: If a mentioned city is in two or more countries, I ask the user to mention which city they are talking about. In addition if there ...

I have made an OOP-based solution to the Openshift CLI, which I intend to use for a rest API. I'm wondering if this approach upholds the basic OOP principles, in terms of abstraction, encapsulation and inheritance Not all the features is implemented, but it's 100% functional as is. OpenShif...

This is my query: SELECT DISTINCT type FROM `log` where type LIKE 'group_%' My DB looks like: |group_1| |group_1| |group_1| |group_2| |group_2| |group_3| |group_3| |group_3| So this query returns me: group_1, group_2, group_3 But .. in near future this table would have more than a millio...

Hello I'm calculating now the total garnered hours student get in school using php. (Same concept in getting the total work hours in employee for timesheets) So I have an array $attendance where the student check in and out in school. $attendance = [ "2019-07-01 08:03:00", "2019-07-01 12:1...

I've been working on a a text based game with a very simple battling system. There are way to many questions I can ask to get reviewed about this project, but I'll take small steps at a time (this is my first post). I'm mostly concerned about how I handle command input and the execution of said ...

I've written a Caesar Cipher in python (a more in-depth explanation is provided in the docstring at the top of the program). At first, it was supposed to just be the cipher, but I expanded it to have the user guess the original string, given the encoded string. I would like feedback on the caesar...

The prime 41, can be written as the sum of six consecutive primes: 41 = 2 + 3 + 5 + 7 + 11 + 13 This is the longest sum of consecutive primes that adds to a prime below one-hundred. The longest sum of consecutive primes below one-thousand that adds to a prime, contains 21 terms, and is equal to...

Could someone share some light and check if this is okay for apache httpd security/good standards? I'm using apache httpd to call my Node.js app that is running with Express and also configuring SSL. apache2.conf: DefaultRuntimeDir ${APACHE_RUN_DIR} PidFile ${APACHE_PID_FILE} Timeout 300 Kee...

I'm trying to reconstruct all the shortest paths (even multiple paths which are tied for the shortest paths). So, based on the answer here, I've written down the code: def floyd_warshall(n, edge): rn = range(n) dist = [[inf] * n for i in rn] nxt = [[0] * n for i in rn] for i ...

I have some code below, it works but it doesn't really seem ideal. Is there a better way to write this using react-router? <div> <BrowserRouter> <Route path="/" exact component={AuthorizeReddit} /> <Route path="/authorize_callback" exact component={Initialization} /> <Route path="...

I have a mutableListOf a sealed class. I am trying to compare the result coming from the api with the ones saved in the db so I can update my UI base on isSaved attribute. Here is my code : sealed class MasterList(val type: Type) { data class FavoriteList( val list: List<Info> )...

Just starting out trying to do some python for data analysis. I am a total beginner and have figure out how to brute force somethings, but I know it is inefficient but don't know how to do it without messing up what i have. I have multiple webpages to scrape and then store data in a data frame. ...

I've written below python script just to invoke parallel threads of a command nslookup linux-host01 dns-server, i'm Just trying to flood the DNS Server dns-server with multiple number of queries in parallel way. As an argument to this script i'm passing a hostlist file example linux-host01 , lin...

Can anybody find anything to pick apart in this script? # Copyright (c) 2019. Legorooj import sys import os docstring = ''' add_alias [alias] [command]''' if len(sys.argv) <= 1: print(docstring) else: alias, cmd = sys.argv[1], sys.argv[2] print('Adding alias...') os.system(f'e...

I am attempting to create a web application that will allow people to enter certain bands in a list, e.g Metallica Megadeth Tool and a Spotify playlist ID to allow the program to add 'x' amount of songs per band to a playlist. The flow of the validation code goes: public void GeneratePl...

I am making a simple 2 player pong game(with the canvas element). The game itself works good but I try to send the coordinates of the ball and the paddle-position with 'WebSocket' to the other plyer. The code(game): var canvas = document.getElementById('canvas'); var ctx = canvas.getContext('2d...

I have been trying to understand and play around with javascript closures and that is when I came across the below issue. Am trying to add/remove elements from an array declared inside a function. I have been able to add or remove and access the updated array for the same. But when I access the ...

I often find in codebases something on the order of if (sprockets.Count() > 0) which is easily replaced with LINQ's if (sprockets.Any()). This keeps the entirety of sprockets from having to be iterated over completely (to get the count) then comparing to zero. Further, the business logic often re...

I am traversing two objects that may share a common ancestor. To make the code small enough to show here, I have changed it into two dictionaries with values. As you can see, a_d and b_d are the inverse of each other. The idea is to step into each dictionary step by step until we find an overlapp...

I currently have an event listener tied to Laravel's Attempting class. The listener is designed to rehash an old password to something newer. The current DB stores the pass in an old crypt format. I'm just silently converting that old hash to a newer one. This works when going to the site to logi...

I have simple class that I want to ask if is there any possible to improve it? I mean, for me it looks poorly. Is there any way to use here try-with-resources, stream or optional? package bookstore.scraper; import lombok.extern.slf4j.Slf4j; import org.jsoup.Jsoup; import org.jsoup.nodes.Documen...

I made a task scheduler to practice allocators and type erasure. With my project, you can delay execution of any callable (functions (using std::ref), lambdas...) in time by inserting it in a TaskScheduler, and by giving a std::chrono::time_point (you can also make a task be called multiple times...

I have a list of 2D matrices. Each matrix is filled using the function “fillMatrices”. This function adds a number of individuals to each day 0 in a matrix and updates the columns “a_M”, “b_M” and “c_M”. The numbers of individuals come from an initial matrix “ind”. The code works but it is slow w...

I've developed a small memory game, the game contains a function to flip cards for every turn. I'm looping thru the array containing the images every time to pick one card. I'm sure there's away to optimize this function so I don't have to loop thru the array every time in order to just turn one ...

Work flow is Copy Previous Year Reports Folder, Update Following Templates, Save, Close. There are 19 workbooks in the Source Folder and in the NewYear Folder. Each Work book has to save the final data from the end of the year(the "YTD ACTUAL" pages) along with resetting and prepping the month sh...

Could someone test my code and tell me if it worked. If you can help me with suggestions or bugs. This code has a class called rank. Its properties are: toString (), toArray (). toString (): Returns a custom ranking text. toArray (): Return an array with the rank. new Rank (values in an array...