DmitrijSept. 7, 2022, 2:40 p.m.

C++Engineering solution of a cubic equation using Vieta's trigonometric formula

кубическое уравнение, unique_ptr, компьютерная математика, полиномиальное уравнение, тригонометрическая формула Виета

As you know, the solution of the cubic equation has been known since the 16th century. However, even today, engineers can face a problem in solving it. This complexity is due to the need to extract the root from complex …

Evgenij LegotskojSept. 5, 2022, 3:45 a.m.

DjangoAnalysis of errors in the development and promotion of a site on Django - Custom tag<cut>

development, Django, Custom

And now some thoughts on the topic of custom tags, and whether they should be introduced at all.

The short answer is NO.

Now let's think about this topic - "Why?" . There is such a well-known Russian-language resource Habr, …

Evgenij LegotskojSept. 2, 2022, 6:06 a.m.

DjangoAnalysis of errors in the development and promotion of a site on Django - Multilingual forms

forms, Мультиязычноть, Django, Translations

With this publication, I would like to start sharing my observations after almost seven years of supporting the EVILEG project. So that every newbie could roughly understand and imagine whether it is worth doing a similar or different functionality or …

sonia jessicaJune 21, 2022, 3:34 a.m.

JavaJava Array Programs

Java, Interview

Arrays in java:

  • An array is the basic Data Structure that contains items of similar data types.
  • There is always an ordering amongst the position of the element.
  • It can be accessed with the help of the indices. Java supports …
Evgenij LegotskojJune 13, 2022, 5:15 a.m.

C++Leet Code Solutions - 003 - Longest Substring Without Repeating Characters

cpp, LeetCode, C++, C++17, string

Solution "Longest Substring Without Repeating Characters" on Leet Code


class Solution {
public:
    int lengthOfLongestSubstring(string s) {
        string candidate_str = "";
        string checking_str = "";
        size_t position = std::string::npos;
        for (auto& ch : s)
        {
            position = checking_str.find(ch);
            if (position …
Evgenij LegotskojJune 13, 2022, 4:13 a.m.

C++Leed Code Solutions - 002 - Add Two Numbers

LeetCode, cpp, C++

Solution "Add Two Numbers" on Leet Code


/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode() : val(0), next(nullptr) {}
 *     ListNode(int x) : val(x), next(nullptr) {}
 *     ListNode(int x, ListNode …
Evgenij LegotskojJune 13, 2022, 3:58 a.m.

C++Leet Code Solutions - 001 - Two Sum

cpp, LeetCode, C++

Two Sum solution on Leet Code


The simple solution

class Solution {
public:
    vector<int> twoSum(vector<int>& nums, int target) {
        for (int i = 0; i < nums.size(); ++i)
        {
            for (int j = i + 1; j < nums.size(); ++j) …
Evgenij LegotskojJune 1, 2022, 4:30 a.m.

DjangoDjango - Lesson 059. Saving the selected language in user settings

python, language, django, translation

In this article, I would like to show an example of how you can make a link on the site so that the user can switch between languages on the site.

But I will show a more advanced version of …

Pavel DorofeevMay 29, 2022, 11:28 a.m.

Projects based on QtКак реализовать TLSv1.2 на Qt 4.8.1

qssl

Initially, QSsl in Qt 4.8.1 (released about 13 years ago) used only the maximum of TLS v1.0.

Today is 2022 and Tls v1.0 and v1.1 are being blocked by almost every decent site on the internet.

Qt in QSsl uses …

Evgenij LegotskojApril 18, 2022, 5:39 p.m.

DjangoDjango - Tutorial 058. Database Growth Due to django_session Table

Django, Postgres, garbage collection, Python, PostgreSQL

Lately, I have noticed that the fatal moment is approaching, when the disk space for the site on the hosting will catastrophically cease to be enough. And the database dump becomes incredibly huge, although there are no obvious prerequisites for …

Evgenij LegotskojFeb. 14, 2022, 4:24 a.m.

DjangoDjango Rest Framework - Tutorial 001. Adding Token Authentication

Django Rest Framework, QML, Authentication, Token, drf, Felgo

At the moment I am actively working on an application that will work with the REST API of a Django site. And one of the first steps was to set up user authentication by token, but in order for this …

Evgenij LegotskojFeb. 10, 2022, 4:13 a.m.

DjangoDjango - Lesson 057. Multilanguage support in MarkdownField with auto populate functionality

MarkdownField, markdown, modeltranslation, Django

The article How to write auto populate field functionality described the simplest functionality of the MarkdownField field to support markdown syntax on a site with automatic generation of html content.

I did not immediately show advanced functionality to make it …

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SK

Qt - Test 001. Signals and slots

  • Result:47points,
  • Rating points-6
VA

C++ - Test 001. The first program and data types

  • Result:13points,
  • Rating points-10
M
  • Maks
  • Sept. 18, 2022, 7:04 a.m.

C ++ - Test 004. Pointers, Arrays and Loops

  • Result:70points,
  • Rating points1
Last comments
F

Engineering solution of a cubic equation using Vieta&#39;s trigonometric formula

красивое домашнее порно анал https://sexs-foto.com/ порно молодых русских бесплатно без регистрации порно знакомства онлайн порно блондинка с большой попой …

Qt/C++ - Lesson 035. Downloading files via HTTP with QNetworkAccessManager

Попробуйте просто вызвать метод getData в конструкторе класса

Qt/C++ - Lesson 035. Downloading files via HTTP with QNetworkAccessManager

Здравствуйте! Подскажите, пожалуйста, как сделать так, чтобы программа срабатыала без нажатия кнопки? Ну чисто при загрузке формы... Я так понимаю, надо что-то поменять в этой строчке con…
R5

Qt/C++ - Lesson 051. QMediaPlayer – simple audio player

Здравствуйте. Подскажите пожалуйста, как решить проблему multimedia модуль не распознается

Qt/C++ - Lesson 009. QTimer – How to work with timer?

Да, именно так. Но в коде без this написано - это ошибка в статье.
Now discuss on the forum
AB

Sorting the added QML elements in the ListModel

I am writing an alarm clock in QML, I am required to sort the alarms in ascending order (depending on the date or time (if there are several alarms on the same day). I've done the sorting …

Вопрос по Qt Creator

Добрый день. Не знаю, подобную проблему я не решал.

Задать другой класс div-у

Добрый день. Попробуйте использовать Selenium. Это библиотека есть в виде Python модуля и она позволяет загружать страницу и манипулировать html элементами. Как я понимаю, в ней можно…
ACh

Списки на QML

Вопрос решен с применением базы данных. Кому интересно, можете поюзать проект:) Отдельное спасибо Евгению за помощь)))Вход под админом Логин:1, пароль:1Вход под диспетчером Логин:22, пароль:2Вх…

Хочу переместить QMenuBar

Просто взять и заменить в пару строчек не получится. Qt предусматривает крайне ограниченный функционал по работе с обрамлением окон, к которому относится заголовок окна. Вообще это фу…
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