A few days ago I learned about the dynamic programming approach to problem-solving; the thing is, I'm still not sure I am fulling grasping the concept.
I decided to write an algorithm that takes a single String of uppercase letters, s, and split it into substrings based on a dictionary I have pr...
I'm trying to define parameters for my api, it's a super basic one and the first I've made. I'm trying to instantiate my class and set parameters but to me it seems super messy. Is this really the best way to set a bunch of properties on a class and check them?
API Class:
class Api {
private $_...
I'm currently working through an exercise of Chapter 4 from Automate the Boring Stuff, which reads as follows:
"Say you have a list value like this: spam = ['apples', 'bananas', 'tofu', 'cats']
Write a function that takes a list value as an argument and returns a string with all the items separ...
It's written in Python using the Selenium webdriver and beautifulsoup modules.
This is the first part, for receiving the complete URL of the website, i.e after DOM and JavaScript manipulations.
from selenium import webdriver
driver = webdriver.Chrome('C:\SeleniumDrivers\chromedriver.exe')
drive...
need help to have each button show below when clicked, i am very rusty with code but need to help a friend and have reached the end of google.
<!DOCTYPE html>
<html>
<body>
<h2>variable document</h2>
<p>Please click the Call options you require.</p>
<button onclick="myFunction(1)">API call ...
The following function I wrapped up in a quick coding frenzy counts the number of individual characters in a (hexadecimal) string, returning an array containing (a) the most used character and (b) the number of times that character is found in the string.
function getMostUsedCharInStringInclCoun...
Here is my solution to problem 11 on Project Euler. The goal was to find the largest product of any four numbers in consecutive line of any direction (vertical, horizontal, or diagonal). While my code achieved the solution it feels wrong to me in a way I cannot quite articulate. I attempted to...
I'm working on a project where I have products. Each product can either be a theme, plugin or a plan. Now my idea was to add different styles to each of the types. For instance, Theme is red, Plugin is blue etc... Now in my blade file I have handled this in the following way:
@if($product->produ...
I've a list of tuples (comes in pairs only)
a = [(1,2),(1,4),(3,5),(5,7)]
which I'm trying to convert to a dictionary as below
d = {1: [2, 4], 3: 5, 5: 7}
Here's what I've come up with -
a= [(1,2),(1,4),(3,5),(5,7)]
d= {}
for k, v in a:
if k not in d:
d[k] = v
else:
...
I have to check an uploaded file for anti-virus and if there is an exception, i have to give a message according to the exception to the users. e.g. if its a timeout, i would ask the user to try aging in a while.
My first class, fileUpload is:
public class FileUpload {
//Message when no v...
Actually I'm using the try/catch statement to check if a table already exist. yes the lazy way. What I'm asking is if this way is deprecated or just an ugly way to know if the table exist.
My Code
Private Sub CreateTable(ByVal tableName As String)
Try
Dim sql as String = "CREATE TAB...
Below I tried to implement a simple container class using the copy-and-move idiom. I am learning the changes to C++ as of C++11 and later. This is my first question, I hope it is well framed.
Is the code exception safe?
I chose to use a smart pointer. Is std::unique_ptr a safe choice? I read th...
My application performs many post and put API calls.
I've set up a helper to make this easier - if you pass in isPut = true then it will perform a put, otherwise it will post.
public static async Task<HttpResponseMessage> PostAsync<T>(string url, T controller,
...
So, I'm learning Java with Head First Java.
I'm trying to build a program that creates a 7x7 grid (A0 to G6) and places an object of 3 consecutive values inside it.
The user has to guess the location and when the 3 values are found, the program will confirm that the object is destroyed.
My pr...I have created a Login, Register ,welcomepage(userprofile with updatefunction). I have done that without thinking about security. Now I would like to improve the security on these pages.
Note: This is a School exercise and I don't really have much experience with php. What simple changes can be ...
Can you use ... in PostgresSQL so I don't have to write out every number in a list?
e.g. WHERE price IN (1, 2, 3, ..., 10)
Or is there another way to do this?
I had this question on interview, can you tell me how refactor this code to SRP?
I am thinking that only wrong is console.log but I am not sure.
class Product {
constructor(name, price, tax) {
this.name = name;
this.price = price;
this.tax = tax;
}
}
class Basket {
constructor...
Appreciate your thoughts and feedback on my simple list implementation.
I have the code on github with list and some googletests here (not sure why github changes the spacing to be so big)
Some points to keep in mind..
I have chosen to have two separate functions for assignment and
move opera...
I making a payroll app that will be interacting with the accounting app. When a payslip is posted the payload will be used by accounting app.This is my code snippet so far but I haven't yet implemented a way to enable accounting app to get payslip payload.
Create Payslip POST METHOD
class Pays...
Specifically, I have created a wrapper for winston, so only a few functions are available and it can always be swapped out for some other library.
In this wrapper I am creating a new logger with:
const logger = winston.createLogger({
level: process.env.MIN_LOG_LEVEL || 'debug', // Minimum logg...
I have a function in C# that takes an object and attempts to insert it into a database:
public bool CreateObject(myObject objectToCreate, out
myObject objectToCreateUpdated)
{
...
//attempt to insert object into database
...
if (success)
{
...
I am reading the resnet 50 implementation in Tensorflow Eager.
The part I would like help with is between lines 235 and 241:
self.l2a = conv_block([64, 64, 256], stage=2, block='a', strides=(1, 1))
self.l2b = id_block([64, 64, 256], stage=2, block='b')
self.l2c = id_block([64, 64, 256], stage=2...
Question : Build a graph in python, given its edge representation.
from collections import defaultdict
graph = { '1' : ['2' ,'4','5'],
'2' : ['3'] ,
'3' : ['5'] ,
'4' : ['2']
}
def generate_edges(graph):
edges = []
for node in graph:
for...
I am coding a model in R and the performance isn't what I was expecting. Should I change to Python script? I don't know if R is the best choice for this case problem.
Follow the script and the data bases.
SCRIPT AND DATA BASES
install.packages("sqldf")
install.packages('Oarray')
install.packag...Aim : To create a xml file from the csv file
Iam trying to create a xml file from the csv file , the xml contains header , footer and body .
I have create 3 different functions.
Input csv file
name,value,amt,position,qnty
abc,2,3,4,5
cde,7,8,9,10
abc,12,13,14,15
cde,7,8,9,10
Code t...
SELECT (SELECT Count(request)
FROM list_items
WHERE request IS NOT NULL
AND request != 0
AND list_id = g.id) AS COUNT,
(SELECT Count(id)
FROM list_items
WHERE list_id = g.id
OR list_id IN (SELECT list_...
This is valid and returns the string "10" in JavaScript (more examples here):
++[[]][+[]]+[+[]]
Why? What is happening here?
I am currently fiddling with ClojureScript and Reagent (a wrapper for React), and I'm trying my hands at an Idle game. I'm somewhat familiar with FP, and pretty new to Clojure/ClojureScript/React.
I'd like a review more specifically on the Clojure/ClojureScript/FP and also React/Reagent parts bu...
My task was to implement this algorithm that uses memoization to calculate fibonnaci numbers:
int fib(int n)
{
int f[n+2]; // 1 extra to handle case, n = 0
int i;
/* 0th and 1st number of the series are 0 and 1*/
f[0] = 0;
f[1] = 1;
for (i = 2; i <= n; i++)
{
f[i] = f[i-1...
So it's been a while. I present you with a somewhat basic PowerShell script that is designed to deploy our staging environment to production, on a nightly basis.
I've designed this to be robust, and also log information relating to the deployment of staging to production. The idea where was to b...
I wrote a program in Python 3 to check all tuples of the form (s,t) where s and t are positive integers satisfying three conditions:
The inequalities s <= t^2 and t <= s^2 hold, and the value s+t divides st(s+1)(t+1);
The value of s+1 is prime;
The inequalities both s * [math.ceil( math.ceil( (...
Code Review's second moderator election has come to a close, the votes have been tallied, and the 3 new moderators are:
They'll be joining the existing crew shortly — please thank them for volunteering, and share your assistance and advice with them as they learn the ropes!
Please join me ...
How to make a JavaScript Alarm Clock and make the alarm duplicate itself in other times with Radio Buttons?
I tried to make a normal alarm but i can't make it duplicate itself
I have an array of date objects, which I want to group by year and month. The data structure I have chosen for my target is an array of arrays of Date objects.
Two Date objects should be in the same array if year AND month match up.
I'm supplying two extensions I added to Date and Formatter to ...
As a side toy project for my Genetic Algorithm, I decided to try to create a macro that lets you use maximize: ... subject to: ... linear problem notation to generate fitness functions. Those fitness functions can then be used in a genetic algorithm to solve linear problems through brute force.
...
I wrote a basic rate limiting classes using class instance variables and mutex. I would love a good review on this code!
In particular, I think rate_count could be written better in how I count the number of expired timestamps.
class RateLimit
@@timestamp = {}
@@m = Mutex.new
de...
I have a DataGridView whose Virtual Mode property is set to True. When values of the underlying list are updated, those updates are not occurring in the UI unless I scroll vertically.
So I have created a timer which, every 1 second, calls DataGridView.Refresh(). Feels ineffective and overkil...