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 ~/Projects/compression-puzzle   feature/red-language ●  nix-env -iA nixpkgs.red
installing 'red-0.6.4'
error: Package ‘red-0.6.4’ in /nix/store/02jzg4iiafapgb2p77aspm6ama87qp5y-nixpkgs-22.05pre338661.3c52ea8c921/nixpkgs/pkgs/development/interpreters/red/default.nix:81 is not supported on ‘x86_64-darwin’, refusing to evaluate.

       a) To temporarily allow packages that are unsupported for this system, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1

       b) For `nixos-rebuild` you can set

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const assert = require('assert');

const sequence = (string) => string.split(/(?<=(.))(?!\1|$)/g)
    .filter((_, i) => !(i % 2))
    .map((c) => [c.length, c[0]])
    .flatMap((c) => c)
    .join('')

assert.equal(sequence("AAABBAAC"),"3A2B2A1C")

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import java.util.UUID

sealed trait Change[V] extends Product { val value: V }
final case class Added[V](value: V) extends Change[V]
final case class Updated[V](value: V, prev: V) extends Change[V]

def changesWithKey[T, K](previous: Array[T], current: Array[T])
                        (implicit key: T => K): Array[Change[T]] = {
  val updates: Array[Change[T]] = for {
    p <- previous; c <- current

otobrglez

package com.pollpass.experimental

import cats.data.ValidatedNec


object Example1 {
  def run(): Unit = {
    type Checker = Char => Boolean

    val isBraille: Checker = _ => false

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final case class SimpleCache() {
  private def tempDir(key: String): IO[Path] =
    IO.fromTry(Try(System.getProperty("java.io.tmpdir")).map(s => Paths.get(s, key)))

  private def serialize[V](path: Path)(v: V): Unit = {
    val out = new ObjectOutputStream(new FileOutputStream(path.toString))
    out.writeObject(v)
    out.close()
  }

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import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.server.Directives._
import cats.effect.{IO, IOApp, Resource}
import cats.syntax.all.catsSyntaxMonadErrorRethrow
import ch.megard.akka.http.cors.scaladsl.CorsDirectives.cors
import com.google.cloud.texttospeech.v1.TextToSpeechClient
import com.typesafe.scalalogging.LazyLogging

object Boot extends IOApp.Simple with LazyLogging {

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const assert = require('assert');

describe('should-work', () => {

  it('passes', () => {
    const enhanceURL = (url) =>
      url.replace(/https/g, 'http').replace(/^http:\/\/([a-zA-Z0-9]+)\./gm,
        (m, p1) => m.replace(p1, 'admin--' + p1))
        .replace(/\/(?=[^\/]*$)/, '/api/')
      + '?_content_format=json'

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[[syntax trees at end of                    parser]] // HelloWorld2.scala
package <empty> {
  object HelloWorld2 extends scala.AnyRef {
    def <init>() = {
      super.<init>();
      ()
    };
    def main(args: Array[String]): Unit = {
      val add2: _root_.scala.Function1[Int, Int] = ((x$1) => x$1.$plus(2));
      println(StringContext("Hello world! This is Scala. ", "").s(add2(40)))

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object HelloWorld extends App {
	val add2: Int => Int = _ + 2

	println(s"Hello world! This is Scala. ${add2(40)}")
}

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import cats.effect._
import cats.implicits._

import java.io.PrintWriter
import java.nio.file.Path

object Editor {
  type Editor = String

  sealed trait EditorError