gkucmierz

import { factorsBI, arrayHistogram } from '@gkucmierz/utils';

const generatePin = () => {
  return Math.trunc(Math.random() * 1e6).toString().padStart(6, '0');
}

for (let i = 0; i < 10; ++i) {
  const pin = generatePin();
  const csum = detSigDig(pin);
  console.log(pin, csum);

gkucmierz

const LagDetector = (() => {
  let run = true;
  const TRESHOLD = 1e3/60 + 1; // ~60 FPS
  let lastTime = +new Date();
  (function loop() {
    const time = +new Date();
    const diff = time - lastTime;
    if (diff > TRESHOLD) {
      console.log(`Interface blocked for ${diff}ms`);

gkucmierz

/* --------------------------------------------------------------
   Labirynt
   Otwarcie:   górna krawędź po prawej  →  wejście
               dolna krawędź po lewej  →  wyjście
   Unikalny szlak od wejścia do wyjścia → perfekcyjny labirynt
   -------------------------------------------------------------- */

const labW = 38;   // szerokość (liczba pól)
const labH = 18;   // wysokość (liczba pól)

gkucmierz

For some reason, it is surprisingly hard to create a bootable Windows USB using macOS. These are my steps for doing so, which have worked for me in macOS Monterey (12.6.1) for Windows 10 and 11. After following these steps, you should have a bootable Windows USB drive.

1. Download a Windows disc image (i.e. ISO file)

You can download Windows 10 or Windows 11 directly from Microsoft.

2. Identify your USB drive

After plugging the drive to your machine, identify the name of the USB device using diskutil list, which should return an output like the one below. In my case, the correct disk name is disk2.

gkucmierz

const TIMES = 1e7;
const STR = 'This project was realized as part of my article';

const replace = [
  str => str.replaceAll(' ', '-'),
  str => str.replace(/ /g, '-'),
  str => str.replace(/\W/g, '-'),
];

gkucmierz

// https://projecteuler.net/problem=57

const squareRoot = n => {
  const STEPS = 100;
  let res = 0;
  for (let i = 0; i < STEPS; ++i) {
    res = (n-1) / (2 + res);
  }
  return res + 1;
};

gkucmierz

const M = (n, verbose = false) => {
  const steps = n - 2;
  const prime = 2n ** BigInt(n) - 1n;
  verbose && console.log('prime: ', prime);
  let s = 4n;
  for (let i = 0; i < steps; ++i) {
    s = (s ** 2n - 2n) % prime;
    verbose && console.log(i, s);
  }

gkucmierz

// this code pasted on Project Euler console site shows difficulty of tasks using colors

const round = n => Math.round(n);
[...document.querySelectorAll('.smaller')].forEach(e=>{;
    const diff = (+e.innerHTML.match(/\d{1,3}/)[0]) / 100 * 255;
    const color = `rgba(${diff},${255-diff},0,1)`;
    e.parentNode.parentNode.parentNode.style.backgroundColor = color;
});

gkucmierz

// https://www.codewars.com/kata/5b84e44d6aa40d1ca5000124/train/bf
const bf = strCode => {
  let orders = ',.[]<>+-'.split('');
  let regex = {
    clean: new RegExp('[^' + escapeRegExp(orders.join('')) + ']', 'g'),
    value: /[\+\-]+/g,
    pointer: /[\<\>]+/g,
    instruction: /[0-9]*./g,
    zero: /\[(\-|\+)\]/g
  };

gkucmierz

function factors(n) {
  let max = Math.floor(Math.sqrt(n));
  let res = [];
  for (let i = 2; i <= max; ++i) {
    if (n % i === 0) {
      res.push(i);
      n /= i;
      max = Math.floor(Math.sqrt(n));
      i = (Math.min(...res) || 2) - 1;