Code Review Stack Exchange Newsletter – Friday, February 10, 2023

Top new questions this week:

Compute “negative” version of vector of vectors

Given a std::vector<std::vector<double>> (e.g., representing some points in a space with D dimensions), I want to …

c++ comparative-review vectors

asked by Filippo Bistaffa Score of 7 answered by G. Sliepen Score of 7

Program that inputs the number of days in January, (C++ beginner) (from 1 to 31) (separ. at tens), and outputs #'s written out

…

beginner c++17 visual-studio

asked by TjGoSwiddly Score of 6 answered by Davislor Score of 6

Merge multiple map with java stream api

I am trying to merge multiple map with Java stream API. The reqiurements like … this method can receive multiple map, does not care hot many of it support 2 merge method: intersection, union if key …

java hash-map stream

asked by Juneyoung Oh Score of 5 answered by K.H. Score of 7

Basic scoped timer struct (extensively redesigned)

Here is the original question. I have extensively revised and redesigned my custom scoped timer for my needs using the feedback I got from two helpful members of this community. However I was told to …

c++ library timer c++20 constrained-templates

asked by digito_evo Score of 5 answered by G. Sliepen Score of 3

Get total sales grouped by customer and product

I have a list of sales: …

python

asked by Navy Flame Score of 4 answered by Toby Speight Score of 8

Perform a permutation on an array in MIPS assembly

I’m currently studying computer science at university and I’d been tasked with writing a MIPS assembly program that performs a permutation on an array. I’m asking here because my code actually worked …

c homework assembly mips32

asked by schuelermine Score of 4 answered by pacmaninbw Score of 3

guess-the-number game

I’m a total Python beginner and made a number guessing game as first project. The user has to guess the number the computer is thinking of. Please give me feedback! …

python beginner game

asked by lummmm Score of 4 answered by Toby Speight Score of 2

Greatest hits from previous weeks:

Stack implementation using linked list

This is a working stack implementation using a linked list. I’m just curious to know if this is a good way of doing it. Any suggestions are welcome. Can we keep track of the number of elements in …

c++ linked-list stack

asked by Software Engineer Score of 15 answered by Jamal Score of 10

Reversing words in a string

I have to reverse the string “He is the one” to “one the is He”. I have written some programs in Java but am looking for other best solutions. Suggest any possible ways to minimize the current …

java algorithm strings

asked by Sumeet Kumar Yadav Score of 11 answered by 200_success Score of 10

jQuery dynamic elements like TR and TD, add to HTML table

Is it possible to create dynamic TR and TD elements in an HTML table? Something similar but better than this: …

javascript jquery html

asked by sebob Score of 7 answered by George Score of 9

Another Python Hangman

I have finished my Python Hangman app with very basic code. …

python beginner python-3.x hangman

asked by michael93pl Score of 5 answered by Phrancis Score of 6

Grouping elements in array by multiple properties

During work, I was given this task: to group elements with similar properties in the array. In general, the problem is as follows: …

javascript sorting properties

asked by Saike Score of 66 answered by konijn Score of 65

Airline Reservations System

Would it be possible to get some feedback on some code I’ve just written? I’ve been working my way through Deitels’ Java How to Program for the past few months and thought I’d better ask for some help …

java object-oriented console

asked by Treehouse Score of 5 answered by Thomas Junk Score of 5

Brute force password cracker

I wrote this script for a proof of concept JavaScript password cracker: …

javascript performance algorithm combinatorics

asked by Progo Score of 17 answered by rolfl Score of 16

Can you answer these questions?

Gizmo Movement Script in Raylib with Mouse Interactions to move an entity in 3-D space

I have a working gizmo movement script made in Raylib that allows me to move an entity (i.e. entity_in_inspector) in a 3D space using 6 arrows. Each arrow is …

c++

asked by Lixt Score of 2

DB2 SQL statement to split a string based on delimiter

I have a “flat file” with structure as below: …

sql csv db2

asked by Theju112 Score of 1

Laravel Event Filtering Controller

So I am currently writing a function in laravel that handles URL parameter filters. How the code works: So we have the following two URL parameters: timeframe and <...

php laravel controller

asked by Nifty Matrix Score of 2 answered by Rager Score of 0