StevenJL

# https://leetcode.com/problems/coin-change/?envType=problem-list-v2&envId=oizxjoit

def coin_change(coins, amount)
  # The cache remembers how many coins it takes to make a certain amount
  cache = {}

  coin_change_recurser(
    original_amount: amount,
    coins: coins.sort.reverse,
    current_coin_count: 0,

StevenJL

// Consider an array of typed elements

type actions = "fart" | "burp" | "poop" | "barf"

let arrayOfActions: actions[] = [
  "fart",
  "burp",
  "poop"
]

StevenJL

# Algorithm to detect delete/insertion change (ie. drag-n-drop) in array of unique elements
# From https://webshittery.com/blog/cumbersome-apis/
# Note that in certain situations where there is more than one correct answer

# For example:
#
# find_moved_element([1, 2, 3, 4, 5], [1, 3, 2, 4, 5]),
#
# Correct answers include:
#

StevenJL

# https://www.linkedin.com/feed/update/urn:li:activity:7202561717019578368?commentUrn=urn%3Ali%3Acomment%3A%28activity%3A7202561717019578368%2C7202905522717552640%29&dashCommentUrn=urn%3Ali%3Afsd_comment%3A%287202905522717552640%2Curn%3Ali%3Aactivity%3A7202561717019578368%29

# Schedule A is a meeting every other Monday at 4pm
# Schedule B is a reminder email for the meeting sent 2 days before it

require "periodoxical"

schedule_a = Periodoxical.generate(
  time_zone: 'America/Los_Angeles',
  start_date: '2024-06-02',

StevenJL

# Typescript TSX ctags
# Based on https://github.com/romainl/ctags-patterns-for-javascript/blob/d965c4abfd00e438a24f6f828b5a1d00258f330c/ctagsrc

--langdef=tsx
--langmap=tsx:.tsx

# These are the added ctags

--regex-tsx=/^[ \t]*(export[ \t]{1,})?type[ \t]{1,}([A-Za-z0-9_$]{1,})/\2/t,Type,Types/{pcre2}
--regex-tsx=/^[ \t]*(export[ \t]{1,})?interface[ \t]{1,}([A-Za-z0-9_$]{1,})/\2/t,Type,Types/{pcre2}

StevenJL

#    _____ _    _ _____ ______ ______ ______ ______ ______ ______ ______ _______ 
#   / ____| |  | |_   _|  ____|  ____|  ____|  ____|  ____|  ____|  ____|__   __|
#  | (___ | |__| | | | | |__  | |__  | |__  | |__  | |__  | |__  | |__     | |   
#   \___ \|  __  | | | |  __| |  __| |  __| |  __| |  __| |  __| |  __|    | |   
#   ____) | |  | |_| |_| |____| |____| |____| |____| |____| |____| |____   | |   
#  |_____/|_|  |_|_____|______|______|______|______|______|______|______|  |_|   


######################## Day 1 ################################

StevenJL

#
#    ```
#    which python3
#    pip3 install torch
#    pip3 install transformers
#    ```
import numpy as np
from transformers import pipeline
classifier = pipeline("zero-shot-classification", model="facebook/bart-large-mnli")

StevenJL

# See the slowest queries right now

SELECT
      pid,
      age(clock_timestamp(), query_start) as time_running,
      substr(query, 0, 75)
FROM pg_stat_activity WHERE state != 'idle'
ORDER BY time_running DESC;

#   pid  |  time_running   | query

StevenJL

SELECT state, COUNT(*) FROM pg_stat_activity  
WHERE pid <> pg_backend_pid() 
GROUP BY 1;

#         state        | count
# ---------------------+-------
#  active              |     7
#  idle                |   569
#  idle in transaction |     2
#                      |     9

StevenJL

  SELECT blocked_activity.query    AS blocked_statement,
         blocking_activity.query   AS current_statement_in_blocking_process
   FROM  pg_catalog.pg_locks         blocked_locks
    JOIN pg_catalog.pg_stat_activity blocked_activity  ON blocked_activity.pid = blocked_locks.pid
    JOIN pg_catalog.pg_locks         blocking_locks 
        ON blocking_locks.locktype = blocked_locks.locktype
        AND blocking_locks.database IS NOT DISTINCT FROM blocked_locks.database
        AND blocking_locks.relation IS NOT DISTINCT FROM blocked_locks.relation
        AND blocking_locks.page IS NOT DISTINCT FROM blocked_locks.page
        AND blocking_locks.tuple IS NOT DISTINCT FROM blocked_locks.tuple