nicokosi

import Data.List
main = do
  putStrLn $ unwords $ map show $ filter isWonderNumber [100000..10000000]

isWonderNumber :: Integer -> Bool
isWonderNumber x = all (== digits x) (map digits (multiples x))

multiples :: Integer -> [Integer]
multiples x = map (* x) [2..6]

nicokosi

import java.util.ArrayList;
import java.util.List;

import static java.lang.System.out;
import static java.util.stream.Collectors.toList;
import static java.util.stream.Collectors.toSet;
import static java.util.stream.IntStream.range;

public class WonderlandNumbers {

nicokosi

Week 1

lecture "Recap: Functions and Pattern Matching"

recursive function + case classes + pattern matching: example JSON printer (Scala -> JSON) pattern matching in Scala SDK: PartialFunction is a Trait with def isDefinedAt(x: A): Boolean

lecture "Recap: Collections"

• Iterable (base class)
  • Seq

nicokosi

query { 
    repository(owner: "softwarevidal", name: "arthur") {
      pullRequests(states: [OPEN]) {
        totalCount
      }
    }
}

nicokosi

library(rjson)
library(httr)
library(ggplot2)
library(scales)

if (interactive()) {
  token <- readline(prompt="Enter Strava access token: ")
  activities <- GET("https://www.strava.com/", path = "api/v3/activities",
                    query = list(access_token = token, per_page = 200))
  activities <- content(activities, "text")

nicokosi

Learn How to Learn

Notes about online course "Lean How to Learn": https://www.coursera.org/learn/learning-how-to-learn.

Goal: learn easily and get less frustrated

What is Learning?

Focused versus diffuse thinking

nicokosi

https://www.gitbook.com/@databricks

nicokosi

// Connect *quietly* to a database with user/password authentication:
mongo $host/$database --quiet --username $user --password $password

// List databases:
show databases
// Change database:
use $database

// List collections for current database:
show collections

nicokosi

import http.client
import json
import getpass
import matplotlib.pyplot as plot
import pandas as pd

def activities(token): 
    connection = http.client.HTTPSConnection("www.strava.com")
    connection.request("GET", "/api/v3/activities?access_token=" + token + "&per_page=200")
    response = connection.getresponse()

nicokosi