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GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

• https://leetcode.com/problems/maximum-subarray/ # Close enough
• https://leetcode.com/problems/minimum-size-subarray-sum/

vjaro

<?php

if (!defined('sugarEntry')) {
    define('sugarEntry', true);
}
require_once('include/entryPoint.php');

function getPDOConnection()
{
    global $sugar_config, $db;

vjaro

DROP FUNCTION IF EXISTS getAge;
CREATE FUNCTION getAge(date_of_birth DATE) RETURNS INT
BEGIN
    DECLARE age INT DEFAULT 0;
    SELECT TIMESTAMPDIFF(YEAR,date_of_birth,CURDATE()) INTO age;

    RETURN age;
END;

vjaro

<?php

if (!defined('sugarEntry')) {
    define('sugarEntry', true);
}
require_once('include/entryPoint.php');

function getPDOConnection()
{
    global $sugar_config;

vjaro

<?php
//define in custom/Extension/application/Ext/Console/RegisterCaseStatusCommand.php
Sugarcrm\Sugarcrm\Console\CommandRegistry\CommandRegistry::getInstance()
    ->addCommand(new Sugarcrm\Sugarcrm\custom\Console\Command\CaseStatusCommand())
;

vjaro

<?php
namespace Sugarcrm\Sugarcrm\custom\Console\Command;;

use Sugarcrm\Sugarcrm\Console\CommandRegistry\Mode\InstanceModeInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Helper\Table;

//Create the file in custom/src/Console/Command/CaseStatusCommand.php

vjaro

Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

Most of programs will not accept an email using just @localhost as domain. So, edit /etc/hosts file to make the domain localhost.com point to your machine, including this content to the file:

127.0.0.1 localhost.com

2 - Install Postfix

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# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

vjaro

// iMacro CheatSheet - Command Reference
// http://wiki.imacros.net/Command_Reference


// iMacros supports 3 types of variables:
// * The macro variables !VAR0 thru !VAR9. They can be used with the SET and ADD command inside a macro.
// * Built-in variables. They contain certain values set by iMacros.
// * User-defined variables. They are defined in-macro using the SET command.
 
 

vjaro

DEVICE=eth0
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
IPADDR=192.168.1.44
NETMASK=255.255.255.0
 
Setup NAT and Host Only adapter