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class Trie {
  constructor() {
    this.n = 0;
    this.children = {};
  }

  add(s) {
    if (s === '') {
      this.n++;
      return;

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const timeToComputeConcurrently = (
  costOfThreadSpawn = 0.001,
  costOfComputation = 0.5,
  nJobs = 8,
  cpuCount = 4
) => {
  const timeToComputeNthJob = nth =>
    (nth + 1) * costOfThreadSpawn +
    costOfComputation +
    (nth >= cpuCount ? timeToComputeNthJob(nth - cpuCount) : 0);

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{
  "swagger": "2.0",
  "info": {
    "title": "NLP",
    "description": "Natural Language Processing API.",
    "contact": {
      "name": "API Support",
      "url": "http://www.swagger.io/support",
      "email": "support@swagger.io"
    },

nl253

import * as rxjs from 'rxjs';
import * as op   from 'rxjs/operators';

function post(s) {
  return rxjs.of(s)
             .pipe(op.delay(500),
                   op.tap(s => console.log('server received "' + s + '"')),
             );
}

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p {
  font-family: Alegreya, serif;
  box-sizing: border-box;
}

button, input[type=button] {
  padding: 5px 8px;
}

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# Standard Library
from functools import lru_cache
from math import sqrt
from typing import List, Optional, Tuple

KB: Tuple[Tuple, Tuple, Tuple, Tuple, Tuple] = (
    (('`', '¬'), ('1', '!'), ("2", '"'), ('3', '£'), ('4', '$'), ('5', '%'), ('6', '^'), ('7', '&'), ('8', '*'), ('9', '('), ('0', ')'), ('-', '_'), ('=', '+')),
    (('\t',), ("",), ("q", 'Q'), ("w", 'W'), ("e", 'E'), ("r", 'R'), ("t", 'T'), ("y", 'Y'), ("u", 'U'), ("i", 'I'), ("o", 'O'), ("p", 'P'), ('[', '{'), (']', '}'), ('\n',)),
    (("",), ("",), ('a', 'A'), ('s', 'S'), ("d", 'D'), ("f", 'F'), ("g", 'G'), ("h", 'H'), ("j", 'J'), ("k", 'K'), ("l", 'L'), (';', ':'), ("'", '@'), ('#', '~')),
    (('',), ('\\', '|'), ("z", 'Z'), ("x", 'X'), ("c", 'C'), ("v", 'V'), ("b", 'B'), ("n", 'N'), ("m", 'M'), (',', '<'), ('.', '>'), ('/', '?')),

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Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

nl253

#!/usr/bin/env bash

# ------------------------------------------------------------
# 	   		             YOUR WORKSPACE
# ------------------------------------------------------------

# GLOBAL VARIABLES (CANNOT BE DELETED)
# ------------------------------------------------------------
# You are free to add / modify the values of these globals.
# However, you cannot delete them as core functions depend on them.

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#![feature(duration_as_u128, extern_prelude)]
#![warn(bad_style, rust_2018_idioms, nonstandard_style)]
#![deny(future_incompatible)]

use std::collections::VecDeque;

fn measure_time(n: u128, f: fn(u128) -> ()) -> u128 {
    let start = std::time::SystemTime::now();
    f(n);
    let end = std::time::SystemTime::now();

nl253

import java.util.Optional;
import java.util.function.Predicate;
import java.util.logging.Logger;

enum Heuristic {TRANSPOSE, MOVE_TO_FRONT}

class Metadata<E> {
    SelfOrgList<E> hd, lst;
    Heuristic heuristic = Heuristic.MOVE_TO_FRONT;
    int len;