My favourite programming language is Java and I usually use JDBC for database operations.
I'm using Swift for one of my projects and I should use a database. The problem is SQLite is only available in C. But I'm not comfortable with C due to its naming conventions and lack of documentation (when...
Is it better to use an array or hashmap to store the graph?
I'm not sure which is more efficient way to store the nodes of the graph. I like the hashmap better because it seems more flexible.
"Is it better to use an array or hashmap to store the graph?
I'm not sure which is more efficient way t...
I am doing some exercises in C# and I have just finished writing my own implementation of the atbash cipher, here is the code:
public class AtbashCipher
{
private string _plain = "abcdefghijklmnopqrstuvwxyz";
private string _cipher = "zyxwvutsrqponmlkjihgfedcba";
private readonly str...
I'm quite fond of jQuery, and I'm trying to learn AngularJS right now.
Which is faster from the two codes below:
jQuery:
<input type="text" id="name">
<p></p>
<script>
$("#name").keyup(function(){
var inp = $(this).val();
$("p").text(inp);
})
</script>
AngularJS:
<d...
Is there any way to clean code with Optional or something else?
public Token getValidUserToken(User user) {
final Optional<Token> token = tokenRepository.getTokenByUser(user.getEmail());
Token result;
if (token.isPresent()) {
result = token.get();
if (result.isExpired...
I saw this code to print Pascal triangle:
L=[1]
while True:
yield L
L = [1] + [ L[x-1] + L[x] for x in range(1,len(L)) ] + [1]
It works fine, but I couldn't figure out how it works. Could anyone please help?
i created a function in perl to check the types from a list and also check the keys inside an dictionary.
I have the following data:
[
dict(name='Frank', tags=['dog', 'cat']),
dict(name='Manfred', tags=['cat', 'chicken'])
]
My function looks so:
def _validate_data(self, data):
if ...
I would like some critics about the way I used Rxjs here.
I made a websocket service that is a wrapper around SocketJs. The gist of said service is this: an user can send something to the backend, this is called an Action in my code, then when the backend answers this is called a Reaction.
So f...
is there a better way to write this Code, because there are many things in the Header and maybe there is a better way to write something or maybe it contians bugs I oversaw... :)
Details:
This Code is the Header of the index.php file and has to run on PHP 7.1 and Joomla 3.7.2.
The Website it ru...
A non-empty zero-indexed array A consisting of N integers is given. Array A represents numbers on a tape.
Any integer P, such that 0 < P < N, splits this tape into two non-empty parts: A[0], A[1], ..., A[P − 1] and A[P], A[P + 1], ..., A[N − 1].
The difference between the two parts is the value...
On the way to protected or long modes, real mode code needs to provide a lot of visual feedback. Video services INT 10H provide this functionality, but lack fluidity. This algorithm provides Write character and attribute AH = 9 and Write string AH = 13H functionality, reading NULL terminated stri...
I have started using NodeJS with Express JS and PassportJS & JWT for User Authentication.
I am able to authenticate the user and generate JWT Token. I am using Bootstrap for my front-end.
By using Postman I am able to get the token and put it in the next request header and it is working fine.
B...
I have a hierarchical data model and am trying to implement their CRUD operations in my Web Application.
Currently I have code inheritance for CRUD operations of my entities (resources) as follows:
I have implemented the Template design pattern with a generic base class and implementing classes...
I've created a Regex to DFA parser, using Thompson's construction algorithm and epsilon-reduction. Here is the code:
builtins.dart:
bool setEquals(Set a, Set b) {
List temp_a = a.toList();
List temp_b = b.toList();
return listEquals(temp_a, temp_b);
}
bool listEquals(List a, List b) {...
I have script which is doing too many stuff when it gets execute and result is user has to wait until response.I am doing some heavy things inside like :
Inserting record
Check for settings
Sending sms based on settings (using smsgateway)
generating notification (locally and using FCM)
these...
I'm relatively new to Haskell and I'd like to get feedback on the style of my program. Specifically:
Coding Style: Can any parts be written in a more concise or more readable way?
Misuse: Are there any parts that are generally should be avoided, or any typical beginner mistakes? (Basically th...
In Protractor, Jasmine expectations are patched to resolve WebDriver
promises implicitly.
For instance, if you need to assert a count of certain elements, you
can use count() method (which returns a promise) directly:
expect($$(".myclass").count()).toEqual(5);
But, newcomers to...
I have a pretty large C++ application (https://github.com/khavernathy/mcmd) in which I've utilized CUDA for faster runtime.
This code (and the whole program) works fine. It is only that after a certain about of time (e.g., 1,000,000 iterations of this function), I consume all memory I have. It i...
import javax.swing.JOptionPane;
public class pet {
public static void main(String[] args) {
String strInput;
pet box = new pet();
strInput = JOptionPane.showInputDialog("Enter pet's name ");
box.setName(strInput);
strInput = JOptionPane.showInputDialog("Enter type of pet ");
box.setType(str...
In X86 Legacy boot loader prologue the first seven instructions preserve the state of the 8 general purpose and 6 segment registers. This is where they are displayed, right justified without leading zeros. Most often you'll see this kind of thing formulated as an ASCII string, then displayed with...
The problem is given an arrray A with N number of elements, for each element i (1<=i<=N), find x + y, where x is the largest number less than i such that A[x] > A[i] and y is the smallest number greater than i such that A[y] > A[i].
If there is no x < i where A[x]>A[i], x=-1, similarly
If there...
I previously published an article on a new method for analysing RNA-seq data as part of my PhD studies, and I'm now working on making this into an R package. I don't come from a programming background, so this is quite challenging and, thankfully, both fun as well as rewarding. There was a part o...
i've written a procedure to where it selects the first and second highest values not already selected (as designated by previous highlights of green and yellow). The first highest ignores anything already highlighted in green or yellow and selects the highest value. The second highest value ignor...
I was trying to implement the solution of the above mentioned problem but I am passing only 4 T.C's while res are eith WA's or TLE or segmentation fault (generally for input of orde 1e6);
problem link : here
Here is my code :
#include<bits/stdc++.h>
#define sync ios::sync_with_stdio(false)
#d...i'm trying to implement a layered application to my solution. Basically, this is just a simple n layered architecture which include the Database layer where all my SQL go, the Data Transfer Object which is just an anemic class that doesn't contain any validation which i use just to move objects a...
I have a very large list of users (a Mongo Collection with roughly +4000 users). Each user belongs to a site.
On the client-side I need to loop over both the sites and users to get completed and incomplete counts between a startDate and endDate. This logic must take place on the client-side.
...
these days I was participating in a job selection process and one of the tasks I was asked to do was to develop a take home pay application to let users to calculate their paycheks based on their location. Today I received the feedback, and it stated that:
Taxes poorly factored;
Low OO knowledg...
A couple days ago I posted a similar question here. Since then, I have refined the implementation a bit further, as the solution I had previously posited was a bit off target. To repeat my problem statement:
Motivation: I found myself with class members of forward declared types in a header, ...
Here is a piece of code for acquiring URLS
import re
import requests
from bs4 import BeautifulSoup
for i in range(7):
r = requests.get(("http://www.yellowpages.com/atlanta-ga/tae-kwon-do?page={}").format(i))
soup = BeautifulSoup(r.content , "html.parser")
for link in soup.find_all("...
I am trying to find the number of capture groups for a regular expression using this PHP function.
/**
* Finds the number of groups in a regular expression by remove all escaped backslashes, then remove all escaped open parentheses and count the remaining opening parentheses
* @param $regexPat...
The method receives an unformatted string and it needs to put line breaks after ';' or before 'i)' and 'i.', where i - integer.
If received a string like '; 1)', then it should add only one line breaker after ';' and before '1)'.
// This is ugly - needs to be refined and refactored
private stat...
If your question contains someone else's code…
For moral, practical, and legal reasons, we are only able to review code that you wrote or code that you maintain. Code Review is not the place to ask about someone else's code.
We also expect you to understand how your code works. If you are see...
I have the following code for taking a date in the form of a string yyyy-MM-dd HH:mm:ss (UTC timezone) and turning it into EEEE d(st, nd, rd, th) MMMM yyyy HH:mm (devices default timezone).
However, my problem with the way I have done it is the code looks messy and inefficient. Is there a way to...
This is my (working) attempt at a program to compute and print the potential maximum values of different variables. However, I feel like the program modified a lot for simplicity and readability (The program will be extended to cover more variables and print out minimum values as well and that me...
