FifthSurprise

# Write your code here!
require 'pry'
def nyc_pigeon_organizer(pigeon_data)
  result = {}
  #going through the list of all the attributes
  pigeon_data.each do |attributetype, attributelist|
    attributelist.each do |attribute, pigeonlist|
      pigeonlist.each do | pigeonname|
        result[pigeonname]={} unless(result[pigeonname]) #add pigeon if not added before
        if(attributetype == :color)

FifthSurprise

### Keybase proof

I hereby claim:

  * I am FifthSurprise on github.
  * I am fifthsurprise (https://keybase.io/fifthsurprise) on keybase.
  * I have a public key whose fingerprint is 0DCF 4B72 A275 BF92 DB2C  B132 58CB 6FB2 DC0B 1536

To claim this, I am signing this object:

FifthSurprise

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?