Advent of Code 2020 Walkthrough

Live Walkthroughs of 2020 Advent of Code. Hours of 🐍 insight. Watch me struggle and fuss as I code up Pythonic solutions.

Covers:

Functional programming
Generators
Comprehensions
Doctest
Pytest
PDB
Emacs!
Regular Expressions
Objects
Refactoring
Iteration
Fixtures

Over 10 hours of content!

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Day 1

Looping, doctests, functional programming

Advent of Code 2020 Day 1.mp4

23 mins
502 MB

Watch me solve Advent of Code Day 1 part 2.mp4

8 mins
166 MB

day1.py

1.24 KB

input.txt

992 Bytes

Day 1: Quiz

day1.py

2.08 KB

AOC Day 1 - Revisited.mp4

11 mins
239 MB

Preview

Day 2

Watch me fumble through an obvious bug and refuse to use regular expressions until I'm forced to. Also, I drink some "soda"

day2.py

1.81 KB

input.txt

20 KB

Advent of Code_ Day 2.mp4

25 mins
550 MB

Day 2 Part 2 AOC.mp4

26 mins
561 MB

Day 3

Pytest and off by one errors. Functional programming, comprehensions, keyword-only arguments.

input.txt

10.1 KB

day3.py

638 Bytes

test_day3.py

607 Bytes

AOC Day 3.mp4

33 mins
728 MB

AOC Day3 - Pytest, while, loops, off by one.mp4

18 mins
396 MB

Day 4 - Splitting, comprehensions, pytest, sets

We make generous use of splitting and tests. Also discuss sets.

AOC Day 4 Part 1.mp4

34 mins
756 MB

Day4Part2-combined.mov

42 mins
2.48 GB

day4.py

1.86 KB

input.txt

21.2 KB

test_day4.py

2.21 KB

Day 5 - Binary, stripping!, tuples, max, lambda, slicing, set comprehensions, and doctests

GMT20201205-162100_AOC_3840x2160.mp4

35 mins
176 MB

day5.py

1.02 KB

input.txt

8.78 KB

AOC Day 5 part 2.mp4

7 mins
156 MB

Day 6 - Splitting, sets, literals, mutation, doctest, and pdb!

day6.py

1000 Bytes

input.txt

15.9 KB

Day 6 Part 1.mp4

17 mins
48.9 MB

Day 6 Part 2.mp4

18 mins
64.3 MB

Day 7 - Tree traversal, pdb, parsing

day7.py

1.99 KB

input.txt

43.6 KB

test_day7.py

1.25 KB

AOC Day 7 Part 1.mp4

26 mins
566 MB

AOC day 7 BFS....mp4

31 mins
693 MB

AOC day 7 part 2.mp4

14 mins
310 MB

Day 8 - While, .replace, sets, pytest, pdb

day8.py

1.22 KB

input.txt

4.99 KB

test_day8.py

458 Bytes

GMT20201208-050039_AOC_1920x1080.mp4

39 mins
132 MB

Day 9 - Encryption - big O, slicing, comprehensions, pytest, half-open interval

test_day9.py

456 Bytes

input.txt

8.71 KB

day9.py

1.29 KB

day9-part1.mp4

19 mins
57.9 MB

Preview

day9-part2.mp4

16 mins
51.1 MB

Day 10 - Graphs, traversal, brute force, frustration, sleep, enlightenment!

Advent of Code - Day 10.mp4

51 mins
1.11 GB

Day 10 - Part 2.mp4

43 mins
955 MB

Day 10 Part 3....mp4

14 mins
298 MB

Day 10 Finished!.mp4

17 mins
361 MB

Preview

day10.py

1.39 KB

test_day10.py

1.61 KB

input.txt

315 Bytes

Day 11 - Classes, pytest, fixtures, class methods, class attributes, object orientation!

day11-part1.mp4

(1h 17m 54s)
223 MB

day11-part2a.mp4

50 mins
139 MB

Preview

day11-part2b.mp4

21 mins
73.1 MB

day11-part2c.mp4

20 mins
64.3 MB

day11.py

5.09 KB

test_day11.py

2.89 KB

input.txt

9.38 KB

Day 12 - Enums

day12.py

3.11 KB

input.txt

2.75 KB

Day 13 - Chinese Remainder Theorem

day13.py

1.82 KB

input.txt

143 Bytes

Day 14 - Bits, .zfill, itertools.product, pytest, dict comprehensions, doctest, regular expressions

AOC Day 14....mp4

48 mins
1.05 GB

Day 14 - Part 2.mp4

37 mins
827 MB

Day 14 part 2 cont.mp4

7 mins
150 MB

Day 15 - Generators, doctest, off by one, dictionaries, clojure, take

day15.py

1.2 KB

Day 15 - Part 1.mp4

29 mins
82.9 MB

Day 15 - Part 2.mp4

5 mins
12.1 MB

Day 16 - Splitting, pudb, reduction (with mutability!), comprehensions, generators, deep copy, pytest

Day 16 - Part 1.mp4

56 mins
180 MB

Day 16 - Part 2-a.mp4

56 mins
193 MB

Day 16 - Part 2-b.mp4

9 mins
26.7 MB

Day 16 - Part 2-c.mp4

43 mins
186 MB

day16.py

3.27 KB

input.txt

19.3 KB

test_day16.py

2.02 KB