romerobrjp

fibonacci function(n, cache) {
  cache = cache || {};
  if (n === 0) return 0;
  if (n === 1) return 1;
  if (cache[n]) return cache[n];
  return cache[n] = this.fibonacci(n - 1, cache) + this.fibonacci(n - 2, cache);
};

romerobrjp

/**
 * 
 *** Fun with Anagrams ***
 * 
 * Given an array of strings, remove each string that is an anagram of an earlier string, then return the remaining array in sorted order.

 * Example
 * str = ['code', 'doce', 'ecod', 'framer', 'frame']
 * 
 * 'code' and 'doce' are anagrams. Remove 'doce' from the array and keep the first occurrence 'code' in the array.

romerobrjp

{"version":1,"resource":"file:///c%3A/Repos/my-angular-specs/src/app/app.component.ts","entries":[{"id":"OAmg.ts","timestamp":1664325909752},{"id":"xq9U.ts","timestamp":1664326221371},{"id":"IUeI.ts","timestamp":1664326232490},{"id":"7mYA.ts","timestamp":1669679768382},{"id":"ZAqs.ts","source":"undoRedo.source","timestamp":1669679774107}]}

romerobrjp

# You've discovered the Shopify Store 'Shopicruit'.
# Since you're obsessed with lamps and wallets, you want to buy every single lamp
# and wallet variant they have to offer.
# By inspecting the Javascript calls on the store you discovered that the shop lists products
# at http://shopicruit.myshopify.com/products.json.
# Write a program that calculates how much all lamps and wallets would cost you.
# Attach your program (any language) and answer in your reply.

require 'net/http'
require 'json'

romerobrjp

class Challenges
  # www.projecteuler.net
  # If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
  # Find the sum of all the multiples of 3 or 5 below 1000.
  def multiples_of_3_and_5
    (1...1000).select { |n| n if (n % 3 == 0) || (n % 5 == 0) }.inject(:+)
  end
end

puts "challenge 1: #{Challenges.new.multiples_of_3_and_5}"

romerobrjp

def rot13(secret_messages)    
    alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz '.split('')
    rot13 = 'NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm '.split('')

    lookup_hash = {}
    alphabet.zip(rot13) do |key, value|
      lookup_hash[key] = value
    end