deliseev

/**
 * Heap's method
 * https://stackoverflow.com/questions/9960908/permutations-in-javascript/37580979#37580979
 * @param permutation - array of numbers for permutation
 */
function* permute(permutation: number[]): IterableIterator<number[]> {
  const length = permutation.length;
  let result = [...permutation];
  let i = 1;
  let c = new Array<number>(length).fill(0);

deliseev

// Download archive .dbf files
const Fs = require('fs');
const Path = require('path');
const Axios = require('axios');

async function download() {
  const url = 'https://www.gnivc.ru/html/gnivcsoft/KLADR/Base.7z';
  const path = Path.resolve(__dirname, 'data', 'base.7z');

  if (Fs.existsSync(path)) {

deliseev

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File (Integrated Terminal)",
            "type": "python",
            "request": "launch",

deliseev

word = input('Enter a word:')
fp = open('/Users/deliseev/Downloads/litf-win.txt', 'r', encoding='cp1251')
words = (w.split()[0] for w in fp.readlines())
nw = ''.join(sorted(word.upper()))
print(nw)
print([w for w in words if nw == ''.join(sorted(w.upper()))])

deliseev

SQLite3 JOINS

INNER JOIN (L=R)

SELECT Authors.*, Books.*
FROM Authors INNER JOIN Books USING (ID);

# | ID | AuthorName | ID | BookName

deliseev

curl https://raw.githubusercontent.com/github/gitignore/master/Global/macOS.gitignore > .gitignore 
curl https://raw.githubusercontent.com/github/gitignore/master/Python.gitignore >> .gitignore
echo "db.sqlite3" >> .gitignore