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 …

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, …

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 …

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 …

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 …

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 …

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) …

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 …

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 …

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 …

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 …

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 …