imouaddine

def fetch_events(start, end, timezone)
  Rails.cache.fetch(cache_key, expires_in: 1.hour.from_now) do 
    GoogleClient.fetch_events     
  end
end

def cache_key
  [
    start,
    end,

imouaddine

require 'google/apis/calendar_v3'

class GoogleCalendarController < ApplicationController

  def redirect
    client = Signet::OAuth2::Client.new(client_options)

    redirect_to client.authorization_uri.to_s
  end

imouaddine

require "net/http"

uri = URI.parse('https://tlstest.paypal.com')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

begin
    request = Net::HTTP::Get.new(uri.request_uri)
    response = http.request(request)
    puts response.body

imouaddine

csv do
    column 'credit id' do |credit|
      credit.id.to_s
    end
    column "account id" do |credit|
      credit.account_id.to_s
    end
    column('enterprise') { |c| c.account && (c.account.enterprise? ? 'yes' : '') || '' }
    column "client id" do |credit|
      credit.user && credit.user.id.to_s || 'no user'

imouaddine

def partition(a,p,r)
  q = 0
  pivot = a[r]
  if p < r
    (0).upto(r-1) do |j|
      if a[j] < pivot
        a[q],a[j] =  a[j],a[q]
        q += 1
      end
    end

imouaddine

class PriorityQueue

  attr_accessor :a

  attr_accessor :size
  def initialize(a)
    @a = a
    self.size = a.length
    build_heap
  end

imouaddine

# UniqueCustomerTrialPurchaseByMonth

SELECT DATE_TRUNC('MONTH', created) as month,
       COUNT(DISTINCT customer_id) as customer_purchased_trial
FROM charges
WHERE amount = 3900 AND paid = true AND status = 'succeeded' and refunded = false
AND created BETWEEN TIMESTAMP '2023-03-01' AND CURRENT_DATE
GROUP BY 1
ORDER BY 1;

imouaddine

w = [10, 20, 30]
b = [60, 100, 120]

$result = {}
def knaspask(w, b, n, max_w)

  if n == 0 || max_w == 0
    result = 0
  else
    if result = $result["#{n.to_s}-#{max_w.to_s}"]

imouaddine

# Iterative using visited attribute

def in_order_ite
    s = Stack.new
    s.push root

    until s.empty?
      c = s.last

      if c.left && !c.left.visited

imouaddine

def permutations(str, prefix)
  if str.length == 0
    puts prefix
  else
    (0).upto(str.length-1) do |i|
      permutations(str.slice(0,i)+str.slice(i+1, str.length), prefix + str[i])
    end
  end
end