MichaelDimitras

class bst {
  constructor(val) {
    this.value = val;
    this.left = null;
    this.right = null;
  }
  
  insert(val) {
    if (val < this.value) {
      if(this.left === null) this.left = new bst(val);

MichaelDimitras

const { Client } = require('pg');

var config = {
  user: 'michaeldimitras', // env var: PGUSER
  database: 'reviews', // env var: PGDATABASE
  password: null, // env var: PGPASSWORD
  port: 5432, // env var: PGPORT
}

const client = new Client(config);

MichaelDimitras

["accelerator", "accordion", "account", "accountant", "acknowledgment", "acoustic", "acrylic", "act", "action", "active", "activity", "actor", "actress", "adapter", "addition", "address", "adjustment", "adult", "advantage", "advertisement", "advice", "afghanistan", "africa", "aftermath", "afternoon", "aftershave", "afterthought", "age", "agenda", "agreement", "air", "airbus", "airmail", "airplane", "airport", "airship", "alarm", "albatross", "alcohol", "algebra", "algeria", "alibi", "alley", "alligator", "alloy", "almanac", "alphabet", "alto", "aluminium", "aluminum", "ambulance", "america", "amount", "amusement", "anatomy", "anethesiologist", "anger", "angle", "angora", "animal", "anime", "ankle", "answer", "ant", "antarctica", "anteater", "antelope", "anthony", "anthropology", "apartment", "apology", "apparatus", "apparel", "appeal", "appendix", "apple", "appliance", "approval", "april", "aquarius", "arch", "archaeology", "archeology", "archer", "architecture", "area", "argentina", "argument", "aries", "ari

MichaelDimitras

/**
 * Definition for a binary tree node.
 * function TreeNode(val) {
 *     this.val = val;
 *     this.left = this.right = null;
 * }
 */
/**
 * @param {TreeNode} root
 * @param {number} k

MichaelDimitras

muncheez=# SELECT * FROM restaurants WHERE id=0;
 id |     name     |     address     |         url         |    phone     |                                                                                                hours                                                                                                |   lat    |   long   
----+--------------+-----------------+---------------------+--------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------+----------
  0 | Magenta Coke | 2482 Marco Burg | https://haylee.info | 541-917-8798 | Monday: 9:00 AM – 9:00 PM, Tuesday: 9:00 AM – 9:00 PM, Wednesday: 9:00 AM – 9:00 PM, Thursday: 9:00 AM – 9:00 PM, Friday: 9:00 AM – 9:00 PM, Saturday: 9:00 AM – 9:00 PM, Sunday: 9:00 AM – 9:00 PM | -33.5837 | -146.592
(1 row)

muncheez=# SELECT * FROM restaurants WHERE name='Magenta Coke';
   id    |     nam

MichaelDimitras

/*
 * A function that takes an array of lowercase characters and returns
 * an array in which all of the vowels are repeated.
 * Time complexity: O(n) 
 * Space complexity: O(1)
 */
const vowelDoubler = function(arr) {
  let numVowels = 0;
  const vowels = new Set(['a', 'e', 'i', 'o', 'u']);
  for(let i = 0; i < arr.length; i++) {

MichaelDimitras

class messageBus {
  constructor() {
    this.subscribers = {};  
  }
  
  subscribe(topic, cb) {
    if (this.subscribers[topic]) {
      this.subscribers[topic].push(cb)
    } else {
      this.subscribers[topic] = [cb];

MichaelDimitras

var frequencySort = function(s) {

    let charCounts = {};
    
    for(let i = 0; i < s.length; i++) {
        if(charCounts[s[i]]) {
            charCounts[s[i]] += 1;
        } else {
            charCounts[s[i]] = 1;
        }

MichaelDimitras

/**
 * @param {string} s
 * @param {string} t
 * @return {boolean}
 */
var isSubsequence = function(s, t) {
    if(!s.length) {
        return true;
    }
    let threads = [];

MichaelDimitras

/**
 * @param {number} capacity
 */
var LFUCache = function(capacity) {
    this.capacity = capacity;
    this.storage = {};
};

/** 
 * @param {number} key