For this challenge on HackerRank:
I reached a solution, but I'm sure it can be optimized:
function countingValleys(n, s) {
let heightTracker = [];
let height = 0;
for (let i = 0; i < s.length; i++) {
if (s[i] === "D") {
height--;
heightTracker.push(he...
I am writing a program to generate primes in range 1 upto 10^9 but it seems to be timing out.
I have tried optimizing my code using bitsets and pragmas.
Please are there any other ways i can optimize my code. Code below
#include<bitset>
#include<vector>
#include<iostream>
#include<algorithm>...
my developer did this scrapper
https://github.com/pythexcel/cryptoapp_backend_frontend/tree/master/backend/app
which runs at an interval and he is not available now and I am stuck setting it up in server,
I am trying to run
sudo python app/__init__.py
but it throws me
ModuleNotFoundErro...
I am trying to create a program that will skip the days when there is no store opening on that day.
Ex:
Day 1 -> Friday
DAy 2 -> Saturday
Day 3 -> Sunday (no store opening)
Day 4 -> Monday
Currently my program will skip and add 1 day when there is no store opening. so it will be like this:
Day...
First of all, I think this question needs a lot of time to think about it and want you to deal with it if you really have fun doing this.
So here is my Question:
I created a booking system for vehicles with Laravel, and there is a welcome page in it with a form that lets the user input location...
I am building a primitive Store Management System based on Qt and would appreciate some feedback.
Classes:
ManagementSystem - the logic unit of the system
User - might be either Admin or Manager (they access the system)
Member - the people who are the members of the Warehouse Club. Might be ei...
I developed a tool in Python which has lot of functionalities, among them ways to access review queues.
I have a series of questions that I may ask separately. Here is the first one:
Suppose a post is deleted by reviewers as, for instance, a low quality post. Hours later, my Python tool can le...
I agree that using regex to parse HTML is not a good way, in particular I am worried about their fragility with respect to change in the HTML.
The problem is that any alternatives are really too slow.
I am parsing this web page which is quite big (3MB). Somewhere in the html there is:
<form cl...
I am working on a project that recognizes people from their gaits.
I'm in the first steps of the project. First job is to extract people silhouette.
input image:
code:
import cv2
import numpy as np
import matplotlib.pyplot as plt
img = cv2.imread('inputImage.jpg')
_, img = cv2.threshold(img,...
I wrote a simple prime number generator in C++17. The function generate_primes(max) generates all prime numbers up to max. I aimed for maximum portability. Here's the code:
#include <cstdint>
#include <iostream>
#include <set>
#include <range/v3/view/iota.hpp>
namespace view = ranges::view;
...
The goal of the following code is to calculate the mean and the standard error of vectors of randomly-generated numbers. I am looking for feedback both on the correctness of the calculation, and on its efficiency.
import numpy as np
def mean_and_stderr(num_of_iterations:int, generator) -> (fl...
I have written codes that will filter a streaming data once they are imported and unzipped. The codes work, but look quite messy and unprofessional. Someone will inherit them in the future. I want to be able to make them clean by wrapping everything up in one or different def functions. I have no...
A bishop can capture any other bishop if it lies along the same
diagonal line, so long as no other bishop is in its path.
Given a list of coordinates of the bishops locations, and a board size, determine how many bishops are unsafe.
This code has a time complexity of O(N*K) where N is t...
I was tasked with using C++ to turn this:
"Hello Jarryd, do you like socks?"
into:
"socks? like you do Jarryd, Hello";
Here's what I came up with, knocked up in Visual Studio using the TestExplorer to run it. Criticism is much appreciated!
int SentenceFlip::FlipSentenceInPlace(char in_Senten...
I need to generate semi-complex throw-able password (just one use) on my application. I want it to be:
at least 8 char long;
contains at least 1 digit, 1 [a-z] char, 1 [A-Z] char;
I generate a few passwords a day, I don't mind about speed. I'm more looking for suggestions about code being mai...
As the title says, I'm loading (or at least trying to) two CSV files and store them in two separate arrays. What I have so far worked, but it isn't the most elegant, no efficient solution.
The end goal is to read in two CSV files and run comparisons on them both - that's why the separating them...
I have written the following code bit which incorporates nested for loop. Will appreciate help in optimizing the code for faster execution.
myDF<-data.frame(schoolName=character(0),className=character(0),myDate=character(0),myTime=character(0),absentCount=double(0))
for ( i in 1: nrow(tData))
{
...
In my website, when a user makes a post, the PHP header function kicks them back out to their home page. If I wanted to use the following line of code...
$username = users['username'];
header('Location: home.php?user='.$username.'');
would this be open to some kind of user attack? When I use...
I've been asked to develop a sample application for a test, it's been a few weeks and I was approved on that, but would like to get some input on that, if possible!
Door Lock
Door Lock is a demo application to simulate openning doors via web.
The demo can be accessed here: Door Lock
The app...
I'm trying to implement the enumerate built-in using iterators. So far it works but for unordered objects, such as sets or dictionaries, I'm not sure if this implementation is considered valid, although it works.
class myEnumerate:
def __init__(self, iterable):
self.iterable = list(i...
I made this program as a baby step to creating an animal shelter management system that will be used in a real life animal shelter. The goal is to move from text files to an online database, and from console interface to a GUI. Two things I'm yet to learn.
I set out with the goal of creating a C...
I need to write a script that can counts co-occurence of a file encoded in UTF-8.
The length of the co-ocurence is between 2 to n tokens.
The frequence of the co-occurence can be from 1 to n.
import sys,res
texte=open(sys.argv[1],'r',encoding="utf-8")
sortie=open("res.txt",'w',enco...
could I get some feedback on my completed code that finds and displays the articulation vertices in an undirected graph.
I included a test case within the code, it should (and does) print c as the only articulation vertex.
Also I would like to clarify my understanding on some things,
1- This ...
I have an application where it is possible to add products.
Those products will be shown in a summary page, which looks like this:
What is the problem ?
The products on the summary page should be checked by default. That's what should be achieved, but it does not work in every case.
Basicall...
