jeovazero

// jeotario's academy

void exceptional() {
  throw Exception('hi');
}

void hello() {
  throw 'Hello Friend';
}

jeovazero

// jeotario's academy

Future foo() {
  print('start');
  return Future.delayed(Duration(seconds: 2), () async {
    print('end');
  });
}

Future<String> fallen() {

jeovazero

bool isEven(int num) {
    return num % 2 == 0;
}

bool isEven(int num) => num % 2 == 0;

/// replicateText(text: 'go', times: 2) == 'gogo'
/// replicateText(times: 0, text: 'go') == ''
String replicateText({ String text, int times }) {
    var result = '';

jeovazero

# linear_regression
# 2021-06-06
# author: jeovazero

Σ = sum

h(t, x) = Σ(t .* x)

j(θ, x, y) = 1 / 2 * Σ([(h(θ, x[i]) - y[i])^2 for i in 1:length(y)])

jeovazero

Install

$ nix-env -f '<nixpkgs>' -iA nix-direnv direnv

Configure

Add to $HOME/.direnvrc:

source $HOME/.nix-profile/share/nix-direnv/direnvrc

jeovazero

/* author: jeovazero */
/**
 * Linking by size + Path halving 
*/
class UnionFind(size: Int) {
    val roots = IntArray(size)
    val sizes = IntArray(size)
    var rootsSize = size - 1
    init {
        for(i in 0..(size - 1)) {

jeovazero

// https://www.inf.ufpr.br/nicolui/grad/Programas/Curiosidades/Gerador-CPF/Algoritmo-CNPJ.txt
function validateDigit(cnpjValues: number[], extraDigit?: number) {
    const values = extraDigit != null ? [...cnpjValues, extraDigit] : cnpjValues
    let size = values.length
    let position = size - 7
    let sum = 0


    for (let i = 0; i < size; i++) {
        sum += values[i] * position--

jeovazero

let
  config = {
    packageOverrides = p: {
      sbt = p.sbt.override {
        jre = p.jdk11;
      };
      scala = p.scala.override {
        jre = p.jdk11;
      };
    };

jeovazero

{-# LANGUAGE Rank2Types #-}

mapPair :: (forall x. x -> x) -> (a,b) -> (a,b)
mapPair f (a, b) = (f a, f b)

id' :: forall x. x -> x
id' x = x

main = print $ mapPair id' (1, 'a')

jeovazero

version: '3'

services:
  zookeeper:
    image: wurstmeister/zookeeper
    container_name: zookeeper
    ports:
      - "2181:2181"
  kafka:
    image: wurstmeister/kafka:2.13-2.8.1