Questions tagged [comparative-review]

This tag is used for questions which present a problem and multiple solutions, where the asker wishes to know which solution is best (and why).

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votes
3answers
62 views

URL & HTML encodings on pagination

I wrote this Pagination Section. It shows links to pages 123456789 and so on on SERP (Keyword Search Result Pages). Like you see on Google SERPs. Even though they work, I'm not sure I finished them to ...
5
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5answers
619 views

Comparing 2 distinct sieve of Eratosthenes algorithms in Java

In this post, I will present and compare two distinct algorithms for sieve of Eratosthenes: com.github.coderodde.math.prime.PrimeFinder ...
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1answer
57 views

Comparing 8 different Disjoint-Set data structure variants in Java

The Wikipedia page on Disjoint-Set data structures presents \$4\$ distinct algorithms for finding the root node of the tree, and \$2\$ distinct algorithms for performing the union operation. In this ...
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0answers
36 views

Graph stored as adjacency list or as endpoints and intervals

I tried speeding up my Graph class, so I removed the Node class and Edge class, and decided to use arrays and ArrayLists. My 2 implementations seem very similar, ...
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2answers
85 views

Search for text in a file

I have this implementation of Grep where I use re.search: ...
0
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0answers
26 views

Chain the same Runnable using Handler in Android

Which approach to creating repeating Runnables is better? ...
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1answer
50 views

Which of these two Vuetify Navigation Drawer prevent prop mutation workarounds seem better?

I am very new to Vue.js, I just stumbled on a very hard thing to do (at least for me) where Vue was complaining about mutating a prop (children shouldn't change parent props apparently). I was about ...
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3answers
73 views

Get the Most frequent element in an array

I have been trying to optimize this: ...
2
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2answers
94 views

Counting uppercase and lowercase characters in a string

I created two programs (one with JAVA8) to calculate the total count of uppercase and lowercase characters in given String. After checking the execution time JAVA8 is taking longer execution time than ...
3
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2answers
191 views

Parsing custom text file using haskell

I am working on writing code for find difference between two text files that should be ideally same. the format of file is ...
3
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1answer
63 views

Posts data to endpoint, trying not to use .Result on async methods

I have a Send method that is working but want to refactor a portion where it is using PostAsync().Result and ReadAsStringAsync().Result. I've never written async methods before and don't feel I ...
2
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1answer
75 views

Dose tracker with daily and weekly totals

This is an old script I made a while ago. What it does It tracks your dose of whatever you want tracked (cigarettes, salt, etc), outputs the total for each day, and the full week. What I’m looking for ...
3
votes
1answer
95 views

Find the largest decrease in a sequence of numbers

I have written a function that takes as input a list of 5 numbers, then the program's goal is to return the largest drop in the list. It is important to understand that [5, 3, ...] is a decrease of 2 ...
3
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1answer
38 views

Using Numba works slower than not using it for my Python code

I thought this community is better place to ask my question so I ask here rather than at StackOverflow. Recently, I learned that Numba can make Python function ...
5
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2answers
260 views

Spliting Greeter class to multiple small classes

Write a Greeter class with greet function that receives a name as input and outputs ...
3
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0answers
40 views

class uploade file(photo,video,..) laravel

I am working on a project, the previous programmer used this method to save photos, videos, etc. ...
5
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1answer
110 views

Copy Columns Forward Macro: From Procedural to OOP

Background: I had created a macro few years ago and when I was reviewing this now, it was hard to understand. I recently went through all the articles from ...
1
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2answers
192 views

URLify a given String - replace spaces with %20

I have written a code to replace all spaces in a String with %20. ...
2
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1answer
49 views

Which solution of the two is the most efficient? Is there a better one? (IP Address Defang)

I just started doing preparation for interviews, but im having trouble recognizing the optimal solution Problem: For a given IP Address, replace every "." with "[.]" Example: ...
1
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1answer
62 views

How can I refactor for handling multiple proto generated service clients by eliminating double await and the DRY code?

I'm having doubts about which is the best strategy to manage the many service clients in this web app. "Best" in terms of a good compromise between user's device RAM and Javascript execution ...
1
vote
1answer
50 views

Changing an element in a list when a predicate holds

My current project is a Settlers of Catan server in Haskell. I often manage to achieve my goals within Haskell, but the code is getting messier as the project grows. My question is about the ...
1
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0answers
37 views

Asking for feedback, when utilizing Pandas, why is it better to use pandas.Series than lists data type?

I found out the hard way, when utilizing pandas is better to use pandas.Series than lists data type to manipulate data. Even if ...
2
votes
3answers
80 views

Sort an array of integers with a hashset

I was trying to make a sorting algorithm for an array of integers. Here's are the steps/theory: It turns an array into a HashSet, iterates over every integer value ...
0
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1answer
64 views

need some guidance for better coding practice [closed]

Given a int optimumMemory and int[] array with list of available memories find the pair of indexes of memories whose sum of the values will be equal to the optimumMemory? If there exists more than one ...
1
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0answers
27 views

Spectrograph using array-of-slice-references

I've written a working and complete proof of concept that shows a spectrograph in Matplotlib. I want to nail down this proof of concept before I continue with development, and I'm not thrilled with ...
3
votes
2answers
110 views

Debounce function that limits the rate a callback is triggered. Which implementation is better, and why?

The Debounce technique allow us to “group” multiple sequential calls in a single one - The debounce() function forces a function to wait a certain amount of time before running again. I wrote both <...
15
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4answers
2k views

Get the first item in a sequence that matches a condition

I've been trying to figure out what's the best, most Pythonic way to get the first element of a sequence that matches a condition. Here are three options: I don't like that I've written ...
2
votes
1answer
238 views

C++: swapping bytes of an uint64_t

This question is about swapping bytes of an uint64_t value, or in other words, about converting between endianness of an integer value: ...
1
vote
1answer
80 views

Perform various actions on a list

I am solving the following HackerRank problem: Consider a list (list = []). You can perform the following commands: insert i e: Insert integer e at position i. <...
2
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0answers
36 views

Which of my string indexing functions in Kotlin is semantically closer to my Java one?

I have a working string indexing method in Java and did convert in Kotlin. All methods shown below produce the same result but as I am really new to the Kotlin language I wanted to ask which of my two ...
9
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3answers
1k views

Two ways to remove duplicates from a list

The question is - Write a program to remove the duplicates in a list Here's how I did it- ...
1
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1answer
55 views

Calculate how many days to add to a process based on destination country or state

I am refactoring a function that calculates how many days to add to a process based on destination country or state. The original function called the database twice, even though the database table ...
4
votes
1answer
37 views

Text centered in a circular component

I have surrounded my initials with a circle. This is intended to be a re-usable component in a responsive layout. (When it is re-used the text will always be two letters, and the font won't change. It ...
6
votes
2answers
228 views

Solution discussion on the best way to reverse a number in Python

I'm practicing some python exercise and I have some doubts about the solution of reversing a number. Example, 42 -> 24, -314 -> -413. The book has this solution: ...
4
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1answer
108 views

LeetCode 1115: Print FooBar Alternately

I'm posting two solutions for LeetCode's "Print FooBar Alternately". If you'd like to review, please do. Thank you! Problem Suppose you are given the following code: ...
3
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0answers
53 views

React Higher Order Components - export wrapped component or wrap it in parent?

I've been learning about about how to use context, and how to make a higher order component to provide context values through props. So, I've created my HOC to pass down the props, and it looks like ...
4
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2answers
1k views

Convert array of u32 to Vec<u8> in Rust

In Rust, I want to take an array of u32 values, convert each to four bytes in big endian, and concatenate them to yield a ...
1
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1answer
114 views

LeetCode 863: All Nodes Distance K in Binary Tree

I'm posting two similar solutions for LeetCode's "All Nodes Distance K in Binary Tree". If you'd like to review, please do so. Thank you! Problem We are given a binary tree (with root node <...
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2answers
145 views

Which is better practice for this if elif… else statement? [closed]

If below piece of code has to be restructured to use but one single if-elif block, which is better? 1. or 2.? A = int(input("Enter an integer(1~30): ")) ...
3
votes
2answers
87 views

Is the following divide and conquer recursive algorithm for the exponentiation more efficient than the iterative one for large numbers?

I have the two following algorithms. My analysis says that both of them are \$\mathcal O(m^24^n)\$ i.e they are equivalent for big numbers (more than 32 bits). Is this right? Note that ...
10
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5answers
5k views

Print a word, one character per line, backwards

I have a problem that I solved in 2 different ways and I would like to know which one is better, cleaner and easier to read. Problem: Write a while loop that starts at the last character in the string ...
2
votes
2answers
80 views

Common Unit Testing Code – Follow Up

This question is a follow up question to the Common Unit Testing Code portion of my lexical analyzer questions. My primary concern is the code in the header file and the C source file that implements ...
2
votes
1answer
64 views

Efficiently use array values and variables in a WordPress template

Is it better to validate and put an array value into a variable at the top of a file or to check the array value directly right before output in the file? I work at a WordPress shop and we have a ...
4
votes
2answers
62 views

An example of transferring the C ++ class hierarchy to Golang. Is it done correctly?

I am trying to transfer my c ++ experience to the Go area. I'm new to Go, so not sure if the implementation is correct. In any case, it looks very ugly compared to C ++ code. Is there a nicer solution?...
3
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0answers
74 views

Providing a connection pool

I need some opinions about method naming and single responsibility principle. First of all, let's talk about method naming. The class below was created to provide a connection pool and whenever a pool ...
3
votes
1answer
108 views

Any ideas how do I prettify this SQL query?

This question is abut coding style. I'd like to see how would you improve this code look considering readability as well. Feel free to upvote others solutions you find good. #1 Initial version: ...
7
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6answers
2k views

Checking if an integer is a palindrome using either a string or a dict

I have solved the palindrome question on LeetCode today, but I wasn't happy with the original solution - I used strings, it worked slowly and used a lot of memory. So I rewrote the answer using a ...
5
votes
2answers
89 views

Print a right-justified list of a list

I'm working through Chapter 6 in "Automate the Boring Stuff, 2nd Edition." Here is the chapter project at the end. Write a function named printTable() that takes a list of lists of strings ...
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2answers
897 views

Return row count from mysqli prepared statement

I want to know if it is okay/safe to use a prepared statement and mysqli_num_rows like this: ...
1
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2answers
53 views

Looking at the hill of indents seems like this can be improved

I've spent some time on this as an answer elsewhere, and did my best to optimize it. But looking at the hill of indents seems like this can be improved. I've tried to implement an ...

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