derrickmar

pp user.credit_events.pluck(:mode, :created_at, :reason)
D, [2022-08-31T06:00:25.840137 #4] DEBUG -- :    (1.6ms)  SELECT "credit_events"."mode", "credit_events"."created_at", "credit_events"."reason" FROM "credit_events" WHERE "credit_events"."user_id" = $1  [["user_id", 9669]]
[["increment",
  Thu, 26 May 2022 17:02:54.515799000 UTC +00:00,
  "meeting_created"],
 ["decrement",
  Wed, 25 May 2022 12:07:22.363525000 UTC +00:00,
  "meeting_created"],
 ["decrement",
  Thu, 26 May 2022 13:36:50.153372000 UTC +00:00,

derrickmar

SELECT
SUM("Adv. Session Completed")/COUNT(*) AS "% Advising Sessions Completed"
FROM
(SELECT
"Lead_id"
,MAX("Completed Advising Session") AS "Adv. Session Completed"
FROM
(SELECT
"Sfdc Leads"."id" AS "Lead_id"
,CAST(CASE WHEN "Sfdc Leads"."advising_session_completed_c" = 'true' THEN 1 ELSE 0 END AS numeric (8,3)) AS "Completed Advising Session"

derrickmar

# If we want to use the Rails routing system and pass these routes to ReactRouter it woud look like this

import Routes from '../../../routes.js.erb';

// We'll still have to define fellow_page_health_uri_pattern
 <Route exact path="#{Routes.fellow_page_health_uri_pattern}">
              {fellow && <FellowTasks fellow={fellow} />}
              {fellow && <NotesPopupQueue fellowId={fellow.id} />}
            </Route>

derrickmar

Communication

• I think you generally have a good communication style and get confirmation when necessary. But I think you oddly have a difficutly understanding the logical constraint of the star. More so than anyone else I've seen which is interesting

Problem Solving

• I think there was some odd things like not realizing there is multuple stars

Coding

• You logically got the high level but you struggled a lot with actually putting it down in code
• You need a lot of hints to start to get things

derrickmar

Hackerrank Pair URL: _____ Problem Name: _____ Topic of Problem: _____ Estimated Difficulty: _____

Techncial Interview Rubric

Learn more about this evaluation rubric here.

Cultural Fit

The subjective aspects of the interview. Is this someone you can see yourself working with?

derrickmar

Start question: 9:20

Here is the harder question https://docs.google.com/document/d/1HOOPehV4kwpYH7fBjuRJ7L51Evxupa4aJrLwnUteXq4/edit

Technical Communication / Problem Solving

❌Make sure to ask clarifying questions beforehand

• Your logic initially was relatively good.

derrickmar

public List<String> topKFrequent(String[] words, int k) {
        // calculate frequency of each word
        Map<String, Integer> freqMap = new HashMap<>();
        for(String word : words) {
            freqMap.put(word, freqMap.getOrDefault(word, 0) + 1);
        }
        // build the buckets
        TrieNode[] count = new TrieNode[words.length + 1];
        for(String word : freqMap.keySet()) {
            int freq = freqMap.get(word);

derrickmar

{"scenes":[{"nodes":[0]}],"nodes":[{"mesh":0}],"meshes":[{"primitives":[{"attributes":{"POSITION":0}}]}],"accessors":[{"byteOffset":0,"componentType":5126,"bufferView":0,"count":3,"type":"VEC3"},{"byteOffset":0,"componentType":5123,"bufferView":1,"count":3,"type":"SCALAR"}],"bufferViews":[{"byteOffset":0,"byteLength":36,"target":34962,"buffer":0},{"byteOffset":0,"byteLength":6,"target":34963,"buffer":1}],"buffers":[{"uri":"data:;base64,AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAgD8AAAAA","byteLength":36},{"uri":"data:;base64,AAABAAIA","byteLength":6}]}

derrickmar

class Order < ActiveRecord::Base
 2   belongs_to :user
 3   has_many :tickets
 4   def calculate_tax
 5     total = self.total_price()
 6     tax_rate = (self.user.zipcode =~ /^941/ ? 0.095 : 0.085)
 7     return total * tax_rate
 8   end
 9 end
10 

derrickmar

"""
Custom parser for nginx log suitable for use by Datadog 'dogstreams'.
To use, add to datadog.conf as follows:
    dogstreams: [path to ngnix log (e.g: "/var/log/nginx/access.log"]:[path to this python script (e.g "/usr/share/datadog/agent/dogstream/nginx.py")]:[name of parsing method of this file ("parse")]
so, an example line would be:
    dogstreams: /var/log/nginx/access.log:/usr/share/datadog/agent/dogstream/nginx.py:parse
Log of nginx should be defined like that:
    log_format time_log '$time_local "$request" S=$status $bytes_sent T=$request_time R=$http_x_forwarded_for';
when starting dd-agent, you can find the collector.log and check if the dogstream initialized successfully
    """